US Pat. No. 9,398,726

HEAT-DISSIPATING BASE AND ELECTRONIC DEVICE

DELTA ELECTRONICS (SHANGH...

1. A heat-dissipating base, comprising:
a main body;
at least one first protrusion disposed on the main body, wherein the at least one first protrusion has at least one first
protrusion top surface for thermally contacting at least one first component above the main body; and

at least one second protrusion disposed on the main body, wherein the at least one second protrusion has at least one second
protrusion side surface for thermally contacting at least one second component above the main body, an accommodation trough
is formed by the second protrusion and the second protrusion side surface of the second protrusion thermally contacts the
second component disposed in the accommodation trough.

US Pat. No. 9,180,617

PLASTIC PRODUCT MANUFACTURING METHOD AND ALL-ELECTRIC INJECTION-MOLDING MACHINE

DELTA ELECTRONICS, INC., ...

1. A plastic product manufacturing method comprising:
(a) providing a cloud server, wherein the cloud server comprises a storage module and an operation module, the storage module
stores a machine number and machine parameters related to an all-electric injection-molding machine, and the all-electric
injection-molding machine includes a controller;

(b) downloading the machine parameters from the storage module to the operation module according to the machine number;
(c) executing mold flow analysis software by the operation module to generate a set of model data and optimal injection conditions
related to a mold according to the machine parameters;

(d) setting a mold number and a password to the set of model data and the optimal injection conditions and then storing the
mold number and the password in the storage module after packaging by the operation module;

(e) connecting to the cloud server using the machine number, the mold number, and the password by the controller after receiving
a production requirement;

(f) downloading the optimal injection conditions to the controller after the cloud server confirms the machine number, the
mold number, and the password; and

(g) driving the all-electric injection-molding machine by the controller according to the optimal injection conditions, so
as to injection mold a plastic substance into a plastic product.

US Pat. No. 9,093,510

FIELD EFFECT TRANSISTOR DEVICE

NATIONAL CENTRAL UNIVERSI...

1. A field effect transistor device, comprising:
a substrate;
a buffer layer, a channel layer, and a first barrier layer sequentially disposed on the substrate;
a two-dimensional electron gas controlling layer disposed on the first barrier layer, wherein the two-dimensional electron
gas controlling layer has a thickness of more than or equal to 5 nm;

a second barrier layer disposed on the two-dimensional electron gas controlling layer, wherein the second barrier layer has
a recess passing through the second barrier layer; and

a gate electrode filled into the recess and separated from the second barrier layer and the two-dimensional electron gas controlling
layer by an insulating layer.

US Pat. No. 9,178,390

MOTOR AND COIL STRUCTURE THEREOF

DELTA ELECTRONICS, INC., ...

1. A motor, comprising:
a coil structure, including three winding groups, each of which has a plurality of winding portions, wherein the winding portions
have an interval therebetween, and are electrically connected by a wire; and

a plurality of permanent magnets, disposed adjacent to the coil structure and corresponding to the winding groups,
wherein the coil structure has only one triangular pair equal to a first number and the first number is equal to one, and
the triangular pair is constituted by a triangle and an inverted triangle, each of the winding groups has the number of winding
portions equal to a second number, and the number of the permanent magnets is equal to the product of two times the first
number and the square of the second number.

US Pat. No. 9,178,295

FLEXIBLE PRINTED CIRCUIT BOARD HAVING GOLD FINGERS

DELTA ELECTRONICS, INC., ...

1. A flexible printed circuit board connecting electrically with a conductive terminal of a rigid printed circuit board and
connecting electrically with a terminal of a system, the flexible printed circuit board comprising:
a base sheet having a first surface and a second surface thereon, and the base sheet having a first end and a second end;
a metallic layer comprising a first metallic layer and a second metallic layer shorter than the first metallic layer, wherein
the first metallic layer is provided on the first surface or the second surface of the base sheet, and the first metallic
layer has a first electrical connecting portion for electrically connecting to the terminal of the system that is provided
on the first surface or the second surface at the first end in one end, and the first metallic layer has a second electrical
connecting portion for electrically connecting to the conductive terminal of the rigid printed circuit board on the second
surface or the first surface at the second end in another end, and the second electrical connecting portion has at least one
first plated through hole; and the second metallic layer is provided on the first surface or the second surface of the base
sheet at the second end, and the second metallic layer has a third electrical connecting portion and a fourth electrical connecting
portion, and the second metallic layer has at least one second plated through hole between the third electrical connecting
portion and the fourth electrical connecting portion, and the second plated through hole communicates with the first plated
through hole, and the first plated through hole is formed a plating layer on an internal wall, and the second plated through
hole is formed a plating layer on an internal wall; and

a protective sheet provided on the metallic layer and the base sheet to expose the first electrical connecting portion of
the first end, the second electrical connecting portion of the second end, the first plated through hole, the third electrically
connecting portion and the second plated through hole.

US Pat. No. 9,207,524

FAN CONTROL METHOD AND PROJECTION APPARATUS USING THE SAME

DELTA ELECTRONICS, INC., ...

1. A method for controlling a fan device of a projection apparatus to remove heat from a lamp, the method comprising steps
of:
(a) enabling the fan device when the lamp is switched from a working state to a power-off state;
(b) disabling the fan device when a temperature of the lamp is reduced to a first predetermined temperature;
(c) enabling the fan device again when the temperature of the lamp is reduced to be lower than a second predetermined temperature;
and

(d) disabling the fan device when the temperature of the lamp is reduced to a re-ignition temperature.

US Pat. No. 9,206,813

CENTRIFUGAL FAN

DELTA ELECTRONICS, INC., ...

1. A centrifugal fan, comprising:
an impeller having a hub and a plurality of blades; and
a casing comprising:
an upper casing;
a lower casing disposed opposite to the upper casing and connected to the upper casing to form an accommodation room for receiving
the impeller;

a plurality of protrusions all disposed on the upper casing or the lower casing inside the casing and immediately surrounding
the blades; and

a first inlet opening defined on the upper casing and comprising a primary inlet opening augmented by a secondary inlet opening;
a second inlet opening defined on the lower casing;
wherein the primary inlet opening is circular and centered on a rotation axis of the impeller and the protrusion surrounds
the first inlet opening or the second inlet opening,

wherein a gap exists between the blades and the upper casing or the lower casing,
wherein a height of the protrusion is greater than a quarter of a height of the gap, and the height of the protrusion is less
than the height of the gap.

US Pat. No. 9,148,984

HIGH-POWER ELECTROMAGNETIC ASSEMBLY

DELTA ELECTRONICS (SHANGH...

1. A high-power electromagnetic assembly, comprising a coil having at least two coil layers, wherein a heat sink is provided
between adjacent coil layers to aid dissipating heat from the coil, an air channel is formed inside the heat sink along its
longitudinal direction, the air channel is also provided between two adjacent coil layers to aid dissipating heat from the
coil, and the longitudinal direction of the air channel of the heat sink is substantially consistent with an axial direction
of the coil.

US Pat. No. 9,207,525

PHOSPHOR WHEEL AND WHITE LIGHT ILLUMINATION DEVICE UTILIZING THE SAME

Delta Electronics, Inc., ...

1. A phosphor wheel, comprising:
a substrate;
a first phosphor region on the substrate; and
a second phosphor region on the substrate,
wherein the first phosphor region and the second phosphor region are concentric patterns without any space between their interface,
and the second phosphor region is set to surround the first phosphor region,

wherein the interface of the first phosphor region and the second phosphor region is used to receive a blue laser from a blue
laser source so as to simultaneously excite the first phosphor region and the second phosphor region to form a first white
light.

US Pat. No. 9,414,480

POWER CONVERSION DEVICE AND POWER CONVERSION ASSEMBLY

DELTA ELECTRONICS (SHANGH...

1. A power conversion device, comprising:
a printed wiring board assembly, comprising:
a printed circuit board having a plurality of through holes; and
a plurality of electronic components disposed on the printed circuit board;
a grounding member; and
a plurality of insulating struts corresponding to the through holes and physically connecting and electrically insulating
the printed circuit board and the grounding member, wherein each of the insulating struts comprises a first connecting part,
a second connecting part, and a plastic part partially covering the first connecting part and the second connecting part,
and the first connecting part and the second connecting part are separated by the plastic part.

US Pat. No. 9,386,720

CASING ASSEMBLY AND POWER SUPPLY APPARATUS WITH THE SAME

DELTA ELECTRONICS, INC., ...

1. A casing assembly, comprising:
a first casing comprising:
a first lateral plate; and
a first engaging element comprising a first slab, a first sidewall and a second sidewall, wherein the first sidewall and the
second sidewall are connected with the first lateral plate, and a dent is formed between the first lateral plate and the first
engaging element; and

a second casing combined with the first casing, and comprising:
a second lateral plate; and
a second engaging element comprising a second slab, a third sidewall and a fourth sidewall, wherein the third sidewall and
the fourth sidewall are connected with the second lateral plate,

wherein the second engaging element is accommodated within the dent and in contact with the first engaging element, so that
the first casing and the second casing are combined together.

US Pat. No. 9,516,757

ELECTRIC CONNECTOR, PLUG-IN MODULE THEREOF AND METHOD FOR MANUFACTURING PLUG-IN MODULE

DELTA ELECTRONICS (CHEN Z...

1. A plug-in module comprising a base, an input unit, an output unit and an output end, wherein:
the base comprises a top plate, a bottom plate and at least one connection plate connecting the bottom plate and the top plate,
a plurality of input terminals and a plurality of intermediate terminals being fixed to the base;

the input unit comprises:
at least one input circuit board provided vertically to the base, and electrically coupled to an end portion of the input
terminals; and

at least one channel provided on the input circuit board, each of the at least one channel comprising a transformer electrically
coupled to the input circuit board;

the output unit comprises:
an output circuit board horizontally provided to the base, and electrically coupled to the input circuit board via the intermediate
terminals; and

the output end fixed to and electrically coupled to the output circuit board.

US Pat. No. 9,088,221

HIGH-VOLTAGE POWER SUPPLY MODULE AND POWER SUPPLY SYSTEM

DELTA ELECTRONICS, INC., ...

8. A power supply system, comprising:
a high-voltage power supply module comprising:
a power converter circuit receiving an input voltage and converting said input voltage into a bus voltage;
a first isolation converter receiving said bus voltage and outputting a first voltage, wherein said first isolation converter
has a first output negative terminal;

a second isolation converter receiving said bus voltage and outputting a second voltage, wherein said second isolation converter
has a second output positive terminal, and said first output negative terminal and said second output positive terminal are
connected with a connecting terminal;

a ground terminal connected with said connecting terminal; and
a controlling unit connected with said first isolation converter and said second isolation converter, wherein in response
to said first voltage and said second voltage, a first control signal and a second control signal are respectively issued
from said controlling unit to said first isolation converter and said second isolation converter to adjust the magnitudes
of said first voltage and said second voltage;

a charging module connected with said controlling unit;
a battery module connected with said charging module and said ground terminal, and comprising at least one battery; and
a distribution module connected with said battery module and a load, and comprising a first diode circuit and a second diode
circuit,
wherein an output voltage of said high-voltage power supply module or an output voltage of said battery module is selectively
transmitted to said load through said distribution module to provide electric energy required for operating said load.

US Pat. No. 9,163,637

FAN ASSEMBLY AND FAN DEVICE THEREOF

DELTA ELECTRONICS, INC., ...

1. A fan device comprising:
a housing;
a fan body disposed in the housing;
a connector electrically connected to the fan body; and
a fixing cover detachably assembled to the housing, wherein the fixing cover is disposed on a corner of the housing, and the
fixing cover comprises:

a connecting structure fitting a type of the connector for positioning the connector on the fixing cover and partially exposing
the connector to an outside of the fan body;

a first board, wherein the first board is rectangular and is connected to the housing with at least three sides of the first
board; and

a second board, wherein the first board and the second board are vertically arranged with each other, and the second board
is rectangular and is connected to the housing with at least three sides of the second board;

wherein the first board is coupled to a first surface of the housing to form a first plane, and the second board is coupled
to a second surface of the housing to form a second plane, the first board comprises at least one first hook for being coupled
to at least one first groove of the first surface, and the second board comprises at least one second hook for being coupled
to at least one second groove of the second surface.

US Pat. No. 9,166,488

METHOD AND APPARATUS FOR RESETTING A RESONANT CONVERTER

DELTA ELECTRONICS INC., ...

9. A resonant converter comprising:
a switching circuit coupled to an input voltage;
a resonant circuit coupled to the switching circuit;
at least one resistor coupled in series with the resonant circuit;
at least one switch coupled in parallel with the at least one resistor;
a transformer coupled to the resonant circuit;
a rectification circuit coupled to the transformer; and
a driver,
coupled to the switching circuit,
comprising a control module that is coupled to the at least one resistor and the at least one switch, and
configured to output to the switching circuit after the resonant converter is turned off, for limiting a peak current occurring
in the switching circuit by resetting remaining in the turned-off resonant converter.

US Pat. No. 9,192,036

POWER APPARATUS FOR X-RAY TUBE, POWER SYSTEM WITH THE POWER APPARATUS, AND METHOD OF OPERATING THE SAME

DELTA ELECTRONICS, INC., ...

1. A power apparatus for an X-ray tube comprising:
a first power conversion unit having a first transformer, the first transformer configured to receive a first AC voltage and
convert the first AC voltage to produce a positive voltage and a driving voltage;

a second power conversion unit having a second transformer, the second transformer configured to receive a second AC voltage
and convert the second AC voltage to produce a negative voltage; and

a power switch unit connected to the first transformer and the second transformer;
wherein the power apparatus is configured to output the positive voltage when the power switch unit is turned on by the driving
voltage; the power apparatus is configured to output the negative voltage when the power switch unit is turned off by the
driving voltage.

US Pat. No. 9,523,739

METHOD AND APPARATUS FOR MEASURING ROTOR RESISTANCE OF INDUCTION MOTOR

DELTA ELECTRONICS (SHANGH...

1. A method for measuring a rotor resistance of an induction motor, comprising:
injecting a first voltage step signal into a test phase of the induction motor when the induction motor is at standstill;
measuring and recording a current value I0+ at an initial moment of the first voltage step signal, a first current value Is1 and a second current value Is2, the first current value Is1 being equal to a steady-state current value corresponding to a voltage value before a step of the first voltage step signal,
and the second current value Is2 being equal to a steady-state current value corresponding to a voltage value after the step of the first voltage step signal;
and

calculating the rotor resistance Rr of the induction motor based on the first current value Is1, the second current value Is2 and the current value I0+ at the initial moment,

wherein the rotor resistance Rr is calculated according to an equation


 in which Rs represents a stator resistance,

wherein the induction motor is a three-phase induction motor, and the method further comprises controlling the three-phase
induction motor at standstill,

wherein the controlling the three-phase induction motor at standstill comprises:
setting a voltage input to the test phase of the three-phase induction motor twice as large as a voltage input to the other
two phases while setting a direction of the voltage input to the test phase opposite to that of the voltage input to the other
two phases; or setting the voltage input to the test phase of the three-phase induction motor equal to a voltage input to
one phase of the other two phases while setting the direction of the voltage input to the test phase opposite to that of the
voltage input to the one phase, and no voltage is supplied to a remaining phase of the other two phases; or

setting a current input to the test phase of the three-phase induction motor twice as large as a current input to the other
two phases while setting a direction of the current input to the test phase opposite to that of the current input to the other
two phases; or setting the current input to the test phase of the three-phase induction motor equal to a current input to
one phase of the other two phases while setting the direction of the current input to the test phase opposite to that of the
current input to the one phase, and no current is supplied to a remaining one phase of the other two phases.

US Pat. No. 9,107,290

PACKAGE STRUCTURE AND STACKED PACKAGE MODULE WITH THE SAME

1. A package structure, comprising:
a first insulation layer, wherein at least one first conductive via and at least one second conductive via are formed in the
first insulation layer;

a first conductive layer disposed on a top surface of the first insulation layer and contacted with said at least one first
conductive via;

a second conductive layer disposed on a bottom surface of the first insulation layer and contacted with said at least one
second conductive via;

at least one first electronic component embedded within the first insulation layer, and comprising plural first conducting
terminals, wherein the plural first conducting terminals are electrically connected with the first conductive layer and the
second conductive layer through said at least one first conductive via and said at least one second conductive via;

a second insulation layer disposed over the first conductive layer and covering the first conductive layer, wherein at least
one third conductive via is formed in the second insulation layer;

a third conductive layer disposed on a top surface of the second insulation layer and contacted with said at least one third
conductive via; and

at least one second electronic component embedded within the second insulation layer and connected to the first conductive
layer via an adhesive material, and comprising plural second conducting terminals, wherein the plural second conducting terminals
are electrically connected with the first conductive layer and/or electrically connected with the third conductive layer through
said at least one third conductive via.

US Pat. No. 9,129,736

TRANSFORMER CAPABLE OF SUPPRESSING COMMON MODE CURRENT AND POWER CONVERTER THEREOF

DELTA ELECTRONICS (SHANGH...

1. A transformer capable of suppressing a common mode current, comprising:
a primary winding coupled to a primary side of the transformer;
a secondary winding coupled to a secondary side of the transformer;
a magnet core; and
a shielding winding layer comprising a first shielding winding and a second shielding winding, wherein both the first shielding
winding and the second shielding winding are coupled to the primary side or the secondary side, and the shielding winding
layer is arranged between the primary winding and the secondary winding, and the first shielding winding comprises a first
jump terminal and a first static terminal, and the second shielding winding comprises a second jump terminal and a second
static terminal, and a voltage jump direction of the first jump terminal of the first shielding winding is constantly opposite
to that of the second jump terminal of the second shielding winding,

wherein the first static terminal and the second static terminal are coupled to a static terminal that is coupled with the
primary winding or the secondary winding, and the first jump terminal and the second jump terminal are not connected together.

US Pat. No. 9,240,741

AC MOTOR

DELTA ELECTRONICS, INC., ...

1. A DC motor driven by an AC voltage from an AC power source, comprising:
a motor coil;
a switch circuit electrically connected to the motor coil for controlling a current passing through the motor coil, wherein
the switch circuit is further connected between a positive terminal of the AC power source and a negative terminal of the
AC power source;

a position detector, comprising a Hall element, for detecting a position of a rotor and outputting a magnetic polarity signal;
a controller for receiving the magnetic polarity signal from the position detector, and controlling the switch circuit to
make the current be a first current with a first direction or a second current with a second direction according to an electrical
polarity of the AC voltage and the magnetic polarity signal, wherein the first direction is opposite to the second direction,
and the electrical polarity is positive or negative; and

an AC/DC transformer for converting the AC voltage into a DC voltage, and outputting the DC voltage to the controller and
the position detector.

US Pat. No. 9,178,457

GENERATOR BRAKE SYSTEM AND METHOD OF CONTROLLING THE SAME

DELTA ELECTRONICS, INC., ...

1. A generator brake system for providing a brake control of a generator driven by an external torque, the generator brake
system comprising:
a power conversion unit receiving an output voltage and an output current, generated from the generator, and the power conversion
unit having at least one switch unit;

a sensing unit receiving the output voltage and the output current, and generating a voltage signal and a current signal;
and

a control unit receiving the voltage signal and the current signal; wherein the control unit controls the output voltage to
be gradually reduced when the control unit receives a brake signal; the control unit generates at least one control signal
to correspondingly turn on at least one switch unit so as to brake the generator in a short circuit manner when the output
voltage is less than a threshold voltage.

US Pat. No. 9,231,406

MID-VOLTAGE VARIABLE-FREQUENCY DRIVING SYSTEM AND TOTAL HARMONIC DISTORTION COMPENSATION CONTROL METHOD

DELTA ELECTRONICS (SHANGH...

34. A total harmonic distortion compensation control method for a mid-voltage variable-frequency driving system comprising
a three-phase switch-mode rectifier module, a three-phase electrical grid, a controller and a total harmonic distortion compensation
unit, wherein the three-phase switch-mode rectifier module is coupled to the three-phase electrical grid, and the controller
is coupled to the three-phase switch-mode rectifier module, and the total harmonic distortion compensation unit is coupled
to the controller, and the total harmonic distortion compensation control method comprises: inputting a initial reactive component
reference value into the total harmonic distortion compensation unit, wherein the total harmonic distortion compensation unit
adjusts the initial reactive component reference value to generate a reactive component reference value; and controlling each
single-phase rectifier circuit of the three-phase switch-mode rectifier module through the controller according to the final
reactive component reference value generated by the total harmonic distortion compensation unit, thus adjusting a phase angle
difference of the three-phase switch-mode rectifier module, thereby adjusting a power factor corresponding to the three-phase
electrical grid and eliminating a current total harmonic distortion corresponding to the three-phase electrical grid; wherein
the phase angle difference exists between a fundamental component of a rectifier AC-side phase current and a fundamental component
of a rectifier AC-side phase voltage, between a fundamental component of a grid-side phase current and a fundamental component
of a rectifier AC-side phase voltage, or between a fundamental component of a grid-side phase current and a fundamental component
of a grid-side phase voltage.

US Pat. No. 9,166,489

LAYOUTS OF MULTIPLE TRANSFORMERS AND MULTIPLE RECTIFIERS OF INTERLEAVING CONVERTER

Delta Electronics (Shangh...

1. A layout of a converter circuit, comprising:
a main board;
a first sub-board; and
a second sub-board;
wherein the converter circuit having a first output and a second output comprises:
a first converter and a second converter, each converter comprising:
(a) a switch network circuit;
(b) a first transformer and a second transformer, each transformer having a primary winding and at least one secondary winding,
wherein the switch network circuit and the primary windings of the first and second transformers are electrically connected
to each other; and

(c) a first rectifier and a second rectifier electrically coupled to the secondary windings of the first transformer and the
second transformer, respectively, each rectifier having a first output and a second output,

wherein the first and second outputs of the first rectifiers of the first and second converters are electrically parallel-connected
to a first output capacitor that is electrically connected between the first and second outputs of the converter circuit;
and

wherein the first and second outputs of the second rectifiers of the first and second converters are electrically parallel-connected
to a second output capacitor that is electrically connected between the first and second outputs of the converter circuit;

wherein the first sub-board is configured with the first rectifiers of the first and second converters and the first output
capacitor which are disposed on the same side of the first sub-board, the first rectifiers of the first and second converters
are symmetric about the first output capacitor on the first sub-board to make the distances from the first output capacitor
to the two first rectifiers respectively are close;

wherein the second sub-board is configured with the second rectifiers of the first and second converters and the second output
capacitor which are disposed on the same side of the second sub-board, the second rectifiers of the first and second converters
are symmetric about the second capacitor on the second sub-board to make the distances from the second output capacitor to
the two second rectifiers respectively are close;

wherein the first sub-board and a second sub-board are perpendicular to the main board.

US Pat. No. 9,077,180

PHASE LOCKING SYSTEM FOR THREE-PHASE ALTERNATING CURRENT ELECTRIC GRID AND METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. A phase locking system for a three-phase alternating current (AC) electric grid, comprising:
an input module, for receiving three-phase voltages of the three-phase AC electric grid and converting the three-phase voltages
to two-way voltages Vgrid? and Vgrid?, each of which comprising a positive sequence component and a negative sequence component;

a first separation module, for obtaining a positive sequence component dpos at a d-axis and a positive sequence component qpos at a q-axis by performing a coordinate transformation from a ?-? coordinate system to a d-q coordinate system on a first variable
to be separated, and next outputting positive sequence components V?pos and V?pos corresponding to the voltage of each way by performing the coordinate transformation from the d-q coordinate system to the
?-? coordinate system on the positive sequence component dpos at the d-axis; and

a second separation module, for outputting negative sequence components V?neg and V?neg corresponding to the voltage of each way by performing the coordinate transformation from the ?-? coordinate system to the
d-q coordinate system and then the coordinate transformation from the d-q coordinate system to the ?-? coordinate system on
a second variable to be separated;

wherein the first separation module and the second separation module are coupled as a closed loop feedback, the second separation
module obtains the negative sequence component by adopting a closed loop compensation, and eliminates an error in the first
separation module, making the first separation module separate out the positive sequence component for phase locking.

US Pat. No. 9,155,226

FAN CONTROL METHOD

DELTA ELECTRONICS, INC., ...

1. A fan control method, comprising:
acquiring a control factor;
determining whether the control factor is located in a first range or a second range;
executing a first dust removing mode if the control factor is located in the first range;
executing a second dust removing mode if the control factor is located in the second range; and
executing a normal mode if it is determined that the control factor is not located in the first range and the second range,
wherein the first dust removing mode is to control the fan to forwardly and reversely rotate alternately by a first rotation
angle,

wherein the second dust removing mode is to control the fan to forwardly and reversely rotate alternately by a second rotation
angle,

wherein the first rotation angle is larger than the second rotation angle.

US Pat. No. 9,263,939

CAPACITOR DISCHARGING CIRCUIT AND CONVERTER

Delta Electronics (Shangh...

1. A converter, comprising:
a capacitor connected between a live line and a null line of AC power input terminals;
a conversion module coupled to the capacitor and at least comprising an energy transfer unit and an energy storage component,
wherein, the energy transfer unit, comprising a switching device, is coupled to the capacitor and the energy storage component;

an AC power-off detecting unit connected with the AC power input terminals, which detects on-off status of AC power and generates
an AC power-off signal; and

a control unit coupled to the AC power-off detecting unit; wherein when disconnection of the AC power is detected by the AC
power-off detecting unit, the AC power-off signal outputted from the AC power-off detecting unit triggers the control unit
to output a switch driving signal, which controls operation of the energy transfer unit to transfer energy stored in the capacitor
to the energy storage component, so that the capacitor is discharged;

wherein the control unit comprises an intervention unit, a feedback regulation unit and a switching signal generation unit,
wherein, the feedback regulation unit comprises a feedback voltage sampling unit, a reference voltage generation unit and
a regulation unit; when the AC power is disconnected, the intervention unit intervenes to increase output voltage of the feedback
regulation unit by decreasing feedback voltage received by the feedback regulation unit or increasing output voltage of the
reference voltage generation unit, such that the switching signal generation unit generates a switch driving signal according
to the output voltage of the feedback regulation unit, so as to control the operation of the switching device of the conversion
module to transfer the energy stored in the capacitor to the energy storage component of the conversion module, and to discharge
the capacitor.

US Pat. No. 9,195,017

OPTICAL MODULE AND OPTICAL TRANSCEIVER MODULE

DELTA ELECTRONICS, INC., ...

1. An optical module comprising:
a first light-guide element comprising a first surface and a second surface;
an optical element corresponding to the first surface, the optical element being configured to emit a first light beam into
the first light-guide element;

a first optical fiber contacted with the second surface, and
a beam splitter attached to the first surface, the beam splitter being configured to split the first light beam into a second
light beam and a third light beam, to reflect the second light beam, and to refract the third light beam,

wherein
a refractive index of the beam splitter is different from a refractive index of the first light-guide element,
the first light-guide element, the optical element, and the beam splitter are positioned such that the first light-guide element
is capable of reflecting the first light beam twice before the first light beam is split into the second light beam and the
third light beam by the beam splitter, and

the first light-guide element is configured to reflect the second light beam between the beam splitter and the first optical
fiber.

US Pat. No. 9,164,367

VISIBLE AND INFRARED LIGHT SOURCE FOR ILLUMINATION SYSTEM AND PROJECTION DEVICE COMPRISING THE SAME

DELTA ELECTRONICS, INC., ...

8. A projection device comprising:
an image-forming system comprising a first, a second, a third, and a fourth light processing element; and
a first light source device having a red light source, a green light source and a blue light source:
the red light directly outputted to said first light processing element to form a red light image;
the green light directly outputted to said second light processing element to form a green light image; and
the blue light directly outputted to said third light processing element to form a blue light image;
a first guiding device configured to combine said red, green, and blue light images together into a visible light image;
a second light source device directly generating a substantially pure infrared light and directly outputting said infrared
light to said fourth light processing element to form an infrared light image; and

a second light guiding device guiding the visible light image outputted from the first light guiding device and the infrared
light image outputted from the fourth light processing element to project outward of said image-forming system,

wherein when the second light guiding device guides the visible light image and the infrared light image, the image-forming
system receives a superposition image combined from the visible light image and the infrared light image and produces a simulating
night vision image.

US Pat. No. 9,111,928

SWITCH CIRCUIT PACKAGE MODULE

DELTA ELECTRONICS (SHANGH...

13. A switch circuit package module comprising:
a substrate;
a semiconductor switch unit comprising a plurality of first and second switch conductive electrodes disposed on an upper surface
of the substrate, wherein the first switch conductive electrodes are arranged alternately with the second switch conductive
electrodes; and

a capacitor unit disposed on an upper surface of the semiconductor switch unit, and electrically and physically contacted
with the semiconductor switch unit, wherein the semiconductor switch unit is interposed between substrate and the capacitor
unit, and wherein the capacitor unit comprises a plurality of capacitors, and each of the capacitors overlaps portions of
a pair of adjacent first and second switch conductive electrodes;

wherein a commutation loop is formed by each of the capacitors and a pair of adjacent switch conductive electrodes that said
each of the capacitors partially overlaps, and wherein impedances of all of the commutation loops are close to or the same
as each other.

US Pat. No. 9,468,120

HOUSING, BOBBIN, AND ELECTRONIC DEVICE

DELTA ELECTRONICS (SHANGH...

1. A housing for at least partially covering an electronic component, the housing comprising:
a body having a first surface and a second surface connected to the first surface, wherein a normal direction of the first
surface and a normal direction of the second surface are interlaced with each other, the body having a notch therein;

at least one first coupling portion disposed on the first surface, configured for being detachably coupled with at least one
second coupling portion of at least one terminal of the electronic component, such that degrees of freedom in a first direction
and a second direction of the terminal are restricted; and

at least one third coupling portion disposed on the second surface, configured for being detachably coupled with at least
one fourth coupling portion of the terminal, such that a degree of freedom in a third direction of the terminal is restricted,
wherein the first direction, the second direction, and the third direction are linearly independent;

a connected member having a through hole therein;
a nut accommodated in the notch, wherein the nut has a tapped hole therein; and
a screw passing the through hole of the connected member and a through hole of the terminal and coupled with the nut.

US Pat. No. 9,236,807

DC/DC CONVERTER, POWER CONVERTER AND CONTROL METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. A DC/DC converter comprising:
an output circuit having a load;
a rectangular wave generator comprising switches for converting an input direct current (DC) voltage into at least one rectangular
wave;

a resonant tank for providing a first voltage based on the rectangular wave for the output circuit;
a detection unit for detecting a signal related to a state of the load; and
a control unit outputs control signals to the switches of the rectangular wave generator for controlling a duty ratio of the
rectangular wave outputted by the rectangular wave generator, so that when the state of the load is a light-load or a no-load,
the control signals control the switches of the rectangular wave generator to make the rectangular wave generator work in
a hiccup mode, and the duty ratio of the rectangular wave is within a predetermined range, in which a voltage gain of the
DC/DC converter is greater than another voltage gain under the condition of 50% duty ratio for reduction in the on-off times
of the switches of the rectangular wave generator per unit time.

US Pat. No. 9,071,026

ENERGY-SAVING CONTROL DEVICE AND ENERGY-SAVING CONTROL METHOD AND POWER ADAPTER INCLUDING THE SAME

DELTA ELECTRONICS (SHANGH...

1. An energy-saving control device applicable to a power adapter, comprising:
a mechanical switch set on a cable interface of the power adapter, wherein the mechanical switch has a first end and a second
end, and the second end is an output end of the mechanical switch;

a controller having an input terminal and an output terminal, wherein the input terminal of the controller is connected to
the output end of the mechanical switch, and the output terminal of the controller outputs a switching control signal; and

a power converter connected to the output terminal of the controller for receiving the switching control signal from the controller,
wherein the power converter is operated according to the switching control signal,

wherein when a connection cable is plugged into the cable interface, the mechanical switch outputs a first signal to the controller,
and the controller outputs a first switching control signal corresponding to the first signal to control the power converter
to be operated at a normal mode; and when a connection cable is removed from the cable interface, the mechanical switch outputs
a second signal to the controller, and the controller outputs a second switching control signal corresponding to the second
signal to control the power converter to be operated at a hiccup mode.

US Pat. No. 9,281,117

MAGNETIC CORE STRUCTURE AND ELECTRIC REACTOR

Delta Electronics (Shangh...

1. An electric reactor, comprising:
a magnetic core structure and at least one winding,
wherein the magnetic core structure comprising:
an upper cover plate and a lower cover plate which are arranged oppositely; and
at least one wrapping post having two ends connected to the upper cover plate and the lower cover plate, respectively,
wherein a cross-sectional area of the upper cover plate and/or a cross section area of the lower cover plate is larger than
a cross-sectional area of the wrapping post, and the upper cover plate, the lower cover plate and the wrapping post are made
of a magnetic powder core material, an amorphous material, a nanocrystalline material or a silicon steel material,

wherein a thickness of the upper cover plate or a thickness of the lower cover plate is larger than a thickness of the wrapping
post, and

wherein a flat metallic wire is used for the winding in a vertical winding manner.

US Pat. No. 9,046,751

OPTICAL EXCITATION DEVICE, LIGHT SOURCE MODULE, AND PROJECTOR USING THE SAME

DELTA ELECTRONICS, INC., ...

1. An optical excitation device for exciting a laser light source, wherein the laser light source emits a first light beam
having a first wavelength, the optical excitation device comprising:
a wavelength converter comprising:
a wheel;
a motor connected to the wheel for driving the wheel to rotate relative to the laser light source; and
a wavelength converting layer disposed on a light receiving surface of the wheel for converting the first light beam with
the first wavelength into a second light beam with a second wavelength; and

a moving element connected to the wavelength converter for moving the wavelength converter relative to the laser light source,
wherein there is a first reaction area between the laser light source and the wavelength converter when the motor is operated
and the moving element is not operated, there is a second reaction area between the laser light source and the wavelength
converter when both the motor and the moving element are operated, and the second reaction area is greater than the first
reaction area.

US Pat. No. 9,131,588

DISCHARGE LAMP SYSTEM AND CONTROLLING METHOD OF THE SAME

DELTA ELECTRONICS (SHANGH...

1. A controlling method for a discharge lamp system, comprising:
determining whether a counted time period is within a time period Tn comprising a first time period ?tn1 and a second time period ?tn2 following the first time period ?tn1, wherein n is an arbitrary positive integer from 1 to N, and N is an integer greater than 1;

outputting a first predetermined voltage Vn1 by a power factor correction circuit when the counted time period is within the first time period ?tn1; and

outputting a second predetermined voltage Vn2 by the power factor correction circuit when the counted time period is within the second time period ?tn2, wherein Vn2
wherein further comprising:
outputting the first predetermined voltage Vi1 by the power factor correction circuit when the counted time period is within the first time period ?ti1 of the time period Tj; and

outputting the first predetermined voltage Vj1 by the power factor correction circuit when the counted time period is within the first time period ?tj1 of the time period Tj;

wherein Vi1?Vj1, i and j are integers from 1 to N, and i?j.

US Pat. No. 9,195,324

INTERACTIVE WHITEBOARD SYSTEM AND WHITEBOARD WRITING INSTRUMENT THEREOF

DELTA ELECTRONICS, INC., ...

1. A nonelectric whiteboard writing instrument with a changeable pattern representing information of writing, comprising:
a housing, having a pattern display section for presenting the changeable pattern; and
an internal element, a part of the internal element being disposed in the housing, the internal element comprising a writing
terminal exposed outside the housing, and the writing terminal receiving a pressure from a whiteboard when a user holds the
nonelectric whiteboard writing instrument to write contents on the whiteboard;

wherein the internal element experiences a movement according to the pressure, and the changeable pattern experiences a variation
according to the movement of the internal element, so that a detection device detects the variation of the changeable pattern
to get information corresponding to the contents, and a projection device projects an image corresponding to the contents
onto the whiteboard according to the information; and

wherein an outer surface of the internal element further has a fixed pattern thereon leading to the variation of the changeable
pattern according to the movement of the internal element.

US Pat. No. 9,088,121

PACKAGE MODULE, PACKAGE TERMINAL AND MANUFACTURING METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. A package terminal, comprising:
a base;
an end portion with a first section; and
a bent portion having C-shape bend with a gradual change section, wherein the bent portion includes a first end and a second
end, the first end is connected to the end portion, the second end is connected to the base, the bent portion includes a second
section, and an area of the second section is smaller than an area of the first section;

wherein the package terminal has a central axis, the first section and the second section are perpendicular to the central
axis, the first section has a maximum sectional area among all of sections perpendicular to the central axis of the end portion,
and the second section has a minimum sectional area among all of the sections of the bent portion; and

wherein the first section and the second section are round, a diameter of the second section is less than or equal to 0.8
times of a diameter of the first section.

US Pat. No. 9,070,708

SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD THEREOF

NATIONAL CENTRAL UNIVERSI...

1. A semiconductor device, comprising:
a substrate;
a heterojunction body disposed on or above the substrate, the heterojunction body comprising:
a first semiconductor layer disposed on or above the substrate;
a mask layer disposed on or above a portion of the first semiconductor layer;
a regrowth layer disposed on the first semiconductor layer and to adjacent to the mask layer, the regrowth layer comprising
a main portion and at least one inclined portion, each of the main portion and the inclined portion having a top surface,
wherein the mask layer has a bottom surface facing the first semiconductor layer, the top surface of the main portion and
the bottom surface of the mask layer are non-coplanar, and the top surface of the inclined portion slopes at an angle between
the top surface of the main portion and the bottom surface of the mask layer; and

a second semiconductor layer disposed on the mask layer and the regrowth layer,
a passivation layer disposed on the second semiconductor layer and at least above the mask layer and the inclined portion
of the regrowth layer;

a source contact and a drain contact respectively electrically coupled with the heterojunction body; and
a gate contact disposed on the passivation layer, between the source contact and the drain contact, and at least above the
inclined portion of the regrowth layer.

US Pat. No. 9,267,508

FAN ASSEMBLY

DELTA ELECTRONICS, INC., ...

1. A fan assembly, comprising:
a bushing having an annular wall defining a cylindrical space therein;
a stator surrounding the bushing, the stator comprising a magnetic body and at least one hook, wherein the magnetic body comprises
an inner circumferential surface facing toward and spatially separated from a portion of the hook, wherein the hook extends
into the cylindrical space, wherein two opposite sides of a portion of the annular wall of the bushing are sandwiched between
the portion of the hook and the inner circumferential surface;

a first bearing disposed in the cylindrical space and pressing against the hook; and
a rotor pivotally connected to the first bearing.

US Pat. No. 9,201,247

ELECTRICALLY SWITCHABLE LIGHT-MODULATING CELL WITH VIA FOR IMAGE DISPLAY APPARATUS

DELTA ELECTRONICS, INC., ...

1. An electrically switchable light-modulating cell, comprising:
a first substrate;
a partition wall, disposed on the first substrate;
a second substrate, disposed on the partition wall and opposite to the first substrate, wherein the first substrate, the second
substrate, and the partition wall define a compartment;

a first and second light-modulating media fill the compartment, wherein the first and second light-modulating media are substantially
immiscible and are of different refractive indices; and

an electric potential difference generator, disposed on at least one of the first substrate, the partition wall, and the second
substrate, wherein the electric potential difference generator provides a plurality of parallel potential lines distributed
where the electric potential difference generator is located,

wherein at least one of the first substrate, the second substrate, and the partition wall is wettable by at least one of the
first and second light-modulating media, and

wherein the first substrate comprises a via.

US Pat. No. 9,194,370

WIND-POWER GENERATOR CONTROL SYSTEM, AND METHOD

DELTA ELECTRONICS, INC., ...

1. A wind-power generator control system, comprising:
a wind turbine;
a power generator, having a first output terminal and a second output terminal, and outputting a power output via the first
output terminal and the second output terminal when the wind turbine rotates;

a normally closed relay, connected between the first output terminal and the second output terminal;
a control unit, transmitting a control signal to the normally closed relay by grid power,
wherein when the normally closed relay does not receive the control signal, the first output terminal short-circuits the second
output terminal by the normally closed relay; and

when the normally closed relay receives the control signal, the first output terminal open-circuits the second output terminal
by the normally closed relay; and

a current-detection unit, detecting the current value of the first output terminal, and transmitting the current value to
the control unit, wherein the control unit determines whether to provide the control signal to the normally closed relay according
to the current value,

wherein when the current value is less than a predetermined current value or greater than a rating current value, the control
unit stops providing the control signal to the normally closed relay, and wherein when the current value is greater than the
predetermined current, the control unit provides the control signal to the normally closed relay.

US Pat. No. 9,189,004

CONTROL CIRCUIT, CONTROL METHOD USED IN PFC CIRCUIT AND POWER SOURCE SYSTEM THEREOF

DELTA ELECTRONICS, INC., ...

1. A control circuit for a PFC circuit, wherein the PFC circuit comprises an inductor, a first bridge arm and a second bridge
arm connected to the first bridge arm in parallel, the first bridge arm has a first switch and a second switch connected with
each other in series, and a common node of the first switch and the second switch is coupled to an input voltage through the
inductor, the control circuit comprising:
a zero current detection circuit, comprising:
a polarity detection circuit, for receiving the input voltage and outputting a first digital signal and a second digital signal
indicating a polarity of the input voltage, a potential of the first digital signal being opposite to that of the second digital
signal; and

a signal conversion circuit, for receiving at least one inductive signal reflecting an inductive voltage of the inductor,
the first digital signal and the second digital signal and generating an analog signal;

a feedback circuit, for receiving the analog signal and a predetermined pulse signal, and generating a driving pulse signal;
and

a pulse distribution circuit, for distributing the driving pulse signal to the first switch and the second switch of the first
bridge arm according to the first digital signal and the second digital signal so that one of the first switch and the second
switch performs an ON operation,

wherein, after a switch cycle, one of the first switch and the second switch performs the ON operation for a next switch cycle
when a current flowing through the inductor decreases to a predetermined threshold value, and an ON time of the first switch
is equal in each switch cycle, and an ON time of the second switch is equal in each switch cycle.

US Pat. No. 9,544,980

DRIVING DEVICE AND ILLUMINATION SYSTEM

DELTA ELECTRONICS, INC., ...

1. A driving device providing output power to an illumination device comprising a plurality of filaments, comprising:
a first converting module converting input power into direct current (DC) power, wherein the first converting module comprises
a pair of first input terminals receiving the input power and a pair of first output terminals coupled to a first node and
a second node and outputting the DC power;

a first capacitor coupled between the first node and a third node;
a second capacitor coupled between the second and third nodes;
a first clamping module connected to a first specific capacitor in parallel, wherein the first specific capacitor is among
the first and second capacitors; and

a second converting module converting the DC power to generate the output power, wherein the second converting module comprises
a second input terminal pair coupled to the first and second nodes and a second output terminal pair outputting the output
power to light the illumination device, wherein the first capacitor is directly connected to the second capacitor.

US Pat. No. 9,426,869

MULTI-OUTPUT ELECTRONIC BALLAST

DELTA ELECTRONICS, INC., ...

1. A multi-output electronic ballast for driving a plurality of lamp assemblies, comprising:
an AC/DC converter coupled to an AC power supply to receive an AC input voltage and configured to output a high DC voltage
to a DC bus;

a first inverter configured to receive the high DC voltage from the DC bus and to output a high-frequency first AC voltage
for driving a first lamp assembly;

a second inverter configured to receive the high DC voltage from the DC bus and to output a high-frequency second AC voltage
for driving a second lamp assembly;

an auxiliary voltage generator configured to generate an auxiliary DC voltage; and
a control circuit coupled to the AC power supply and configured to output a control DC voltage for controlling the operation
of the first inverter based on a state of a first switch, the first switch being connected in series between the control circuit
and the AC power supply, wherein the control circuit generates the control DC voltage from one of the high DC voltage from
the DC bus or the auxiliary DC voltage when the first switch is closed and does not generate the control DC voltage when the
first switch is open.

US Pat. No. 9,331,565

SWITCHING POWER CONVERSION CIRCUIT AND POWER SUPPLY USING SAME

DELTA ELECTRONICS (SHANGH...

1. A switching power conversion circuit for receiving the energy of an input voltage and generating an output voltage to a
system circuit, said switching power conversion circuit comprising:
a first-stage power circuit configured to perform a power factor correction and convert said input voltage into a bus voltage,
wherein said first-stage power circuit comprises a first switching circuit;

a first feedback circuit connected to said first-stage power circuit for generating a first feedback signal according to said
bus voltage;

a second-stage power circuit connected to the first-stage power circuit for converting said bus voltage into said output voltage,
wherein said second-stage power circuit comprises a second switching circuit;

a second feedback circuit connected to said second-stage power circuit for generating a second feedback signal according to
said output voltage; and

a controlling unit connected to said first-stage power circuit, said second-stage power circuit, said first feedback circuit,
said second feedback circuit and said system circuit for controlling the operations of said first-stage power circuit according
to said first feedback signal, controlling the operations of said second-stage power circuit according to said second feedback
signal and receiving a power-status signal issued from said system circuit, wherein said controlling unit comprises:

a start-up circuit connected to said system circuit and a power input terminal of said switching power conversion circuit
for converting said input voltage and generating a start-up voltage according to said power-status signal;

a first control circuit connected to said first switching circuit, a first auxiliary power output terminal of said second-stage
power circuit, an output terminal of said first feedback circuit, said system circuit and said start-up circuit, wherein said
first control circuit issues a first pulse width modulation control signal according to said first feedback signal, and said
first switching circuit is conducted or shut off according to said first pulse width modulation control signal; and

a second control circuit connected to said second switching circuit, said first auxiliary power output terminal of said second-stage
power circuit, an output terminal of said second feedback circuit and said first control circuit, wherein said second control
circuit issues a second pulse width modulation control signal according to said second feedback signal, and said second switching
circuit is conducted or shut off according to said second pulse width modulation control signal; and

wherein if said power-status signal is in an off status, said second-stage power circuit is disabled according to said power-status
signal under the control of said controlling unit, thereby said switching power conversion circuit stops providing electrical
energy to said system circuit.

US Pat. No. 9,252,653

POWER FACTOR CORRECTION CONVERTER AND CONTROL METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. A power factor correction converter, comprising:
a power conversion module having a first input terminal, a second input terminal, and an output terminal, the first input
terminal and the second input terminal being electrically coupled to an AC power source, the power conversion module comprising
a first switch, a second switch, a first switch unit, a second switch unit, and a power factor correction inductor, the first
switch being electrically coupled to the first input terminal, the second switch being electrically coupled to the second
input terminal, the first switch unit being electrically coupled to the output terminal and the first switch unit and the
first switch being electrically coupled to a first voltage node, the second switch unit being electrically coupled to the
output terminal and the second switch unit and the second switch being electrically coupled to a second voltage node, the
power factor correction inductor being electrically coupled between the first voltage node and the second voltage node;

an output capacitor electrically coupled to the output terminal for generating a DC output voltage;
a third switch unit electrically coupled between the second input terminal and the output capacitor; and
a fourth switch unit electrically coupled between the first input terminal and the output capacitor.

US Pat. No. 9,214,763

FLY LINE CONNECTOR

DELTA ELECTRONICS, INC., ...

1. A fly line connector, comprising:
a main body, having an upper surface, a lower surface opposite to the upper surface, and a front surface connected between
the upper surface and the lower surface, wherein the main body comprises:

at least one opening, disposed on the upper surface of the main body;
at least one passage, located in the main body and connected to the at least one opening; and
at least two grooves, disposed between the at least one passage and the lower surface of the main body to connect the at least
one passage to the lower surface of the main body; and

at least two pins, disposed on the lower surface of the main body and respectively corresponding to one of the at least two
grooves,

wherein the fly line connector is adapted to be joined by at least two fly lines of a magnetic element, wherein the at least
two fly lines are inserted into the fly line connector via the at least one opening, and sequentially pass through the at
least one passage and the at least two grooves to electrically connect to the at least two pins.

US Pat. No. 9,093,897

INVERTER AND CONTROL METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. An inverter, comprising:
a first bridge leg electrically connected to a direct-current (DC) source, the first bridge leg comprising a first switch,
a second switch, a third switch and a fourth switch and a fifth switch which are sequentially connected in series;

a second bridge leg connected to the first bridge leg in parallel, the second bridge leg comprising a sixth switch, a seventh
switch, an eighth switch, a ninth switch and a tenth switch which are sequentially connected in series;

a first diode connected in anti-parallel with the first switch and the second switch which are connected in series;
a second diode connected in anti-parallel with the fourth switch and the fifth switch which are connected in series;
a third diode connected in anti-parallel with the sixth switch and the seventh switch which are connected in series;
a fourth diode connected in anti-parallel with the ninth switch and the tenth switch which are connected in series;
a cathode of a fifth diode connected to a connection point between the second switch and the third switch and an anode of
the fifth diode connected to a connection point between the eighth switch and the ninth switch; and

a cathode of a sixth diode connected to a connection point between the seventh switch and the eighth switch and an anode of
the sixth diode connected to a connection point between the third switch and the fourth switch.

US Pat. No. 9,081,065

INDUCTANCE MEASURING DEVICE AND METHOD FOR MEASURING AN INDUCTANCE PARAMETER OF PERMANENT MOTOR

DELTA ELECTRONICS (SHANGH...

1. An inductance measuring device for measuring an inductance parameter of a permanent motor, the inductance measuring device
comprising:
a signal conversion unit, for converting a signal corresponding to a d-axis given current signal and a signal corresponding
to a q-axis given current signal into a three-phase command signal, and converting a three-phase feedback signal of the permanent
motor into a d-axis feedback signal and a q-axis feedback signal;

a power conversion unit for receiving the three-phase command signal and outputting a motor control signal corresponding to
the three-phase command signal, so as to obtain the three-phase feedback signal based on the motor control signal; and

a parameter calculation unit, for receiving a first response signal corresponding to the d-axis given current signal, a second
response signal corresponding to the q-axis given current signal, a third response signal corresponding to the d-axis feedback
signal and a fourth response signal corresponding to the q-axis feedback signal, and calculating a d-axis inductance and a
q-axis inductance based on the first, second, third and fourth response signals when the permanent motor is in a stationary
state.

US Pat. No. 9,257,929

EXCITATION CONTROL CIRCUIT, CONTROL METHOD AND ELECTRICALLY EXCITED WIND POWER SYSTEM HAVING THE SAME

DELTA ELECTRONICS (SHANGH...

1. An excitation control circuit for an electrically excited wind power system, comprising:
at least one converter arranged between an AC electric grid and a wind power generator so as to convert AC power generated
by the wind power generator into AC power corresponding to the AC electric grid; and

at least one AC/DC conversion module having an input side and an output side, where the input side of the AC/DC conversion
module is electrically connected between the converter and the wind power generator, the output side of the AC/DC conversion
module is coupled to an excitation device, and the AC/DC conversion module is used to convert the AC power generated by the
wind power generator into a DC voltage so as to provide the excitation current of the wind power generator through the DC
voltage,

wherein
the AC/DC conversion module comprises a rectifier circuit and a DC/DC converter,
the DC/DC converter is used to perform DC/DC conversion of the rectifier voltage outputted by the rectifier circuit, and
a buffer unit comprising a buffer resistance and a switch connected in parallel is arranged between the rectifier circuit
and the DC/DC converter.

US Pat. No. 9,435,864

APPARATUS FOR MEASURING EXCITATION PARAMETERS OF INDUCTION MOTOR AND METHOD THEREOF

Delta Electronics (Shangh...

1. An apparatus for measuring excitation parameters of an induction motor, comprising: a control unit, a power converter,
and an excitation parameter calculating unit, wherein:
the power converter is for providing a test current to a test phase of the induction motor, and an output of the power converter
maintains the induction motor static;

the control unit is equipped with a current instruction for indicating the test current, and the control unit is for regulating
the test current provided by the power converter to be equivalent to the current instruction, meanwhile controlling the output
of the power converter to maintain the induction motor static; and

the excitation parameter calculating unit is for receiving a voltage signal of a test phase of the induction motor and a current
signal of the test phase of the induction motor to calculate the excitation parameters.

US Pat. No. 9,369,047

POWER CONTROL METHODS FOR FLYBACK CONVERTERS BASED ON THE CURRENT LIMIT AND SWITCHING FREQUENCY

DELTA ELECTRONICS INC., ...

1. A method, adopted by a flyback converter circuit including a transformer, comprising:
determining an output voltage output from a secondary circuit of the transformer;
feeding a feedback voltage based on the output voltage from the secondary circuit back to a primary circuit of the transformer;
increasing a current limit and a switching frequency of a primary current with the feedback voltage; and
supplying the primary current to the primary winding of the transformer;
when the feedback voltage exceeds a third threshold voltage, maintaining both the current limit and the switching frequency
to be substantially constant; and

when the feedback voltage exceeds a fourth threshold voltage, reducing the current limit to a constant overload current, wherein
the fourth threshold voltage exceeds the third threshold voltage, and the constant overload current is less than the substantially
constant current limit.

US Pat. No. 9,136,201

HYBRID HEAT SINK AND HYBRID HEAT SINK ASSEMBLY FOR POWER MODULE

DELTA ELECTRONICS (SHANGH...

1. A hybrid heat sink assembly for power modules, comprising two hybrid heat sinks provided opposite to each other, each of
the hybrid heat sinks comprising:
a base provided with at least one power module of the power modules on one side thereof;
a first heat dissipation unit as a first heat dissipation fin group which is composed of a first plurality of heat dissipation
fins intervally arranged and is located on another side of the base; and

a second heat dissipation unit comprising a plurality of heat pipes and a second heat dissipation fin group, each of the heat
pipes comprising an evaporating section provided in the base and adjacent to the at least one power module, a condensing section,
and an adiabatic section located between the evaporating section and the condensing section, the adiabatic section comprising
an extension portion extending upwardly from a distal end of the evaporating section and a folding portion folded from a distal
end of the extension portion, and the second heat dissipation fin group being provided on each condensing section of the heat
pipes and being composed of a second plurality of heat dissipation fins;

wherein the first heat dissipation fin group of a first one of the two hybrid heat sinks is provided in parallel to the first
heat dissipation fin group of a second one of the two hybrid heat sinks, each first heat dissipation fin group of the first
one of the two hybrid heat sinks adjacent to the first heat dissipation fin group of the second one of the two hybrid heat
sinks, the first heat dissipation fin group located at an inner side of the respective base, and an interval distance between
each condensing section of all the heat pipes within one of the first one and the second one of the two hybrid heat sinks
and the first heat dissipation fin group in the one of the first one and the second one of the hybrid heat sinks is larger
than an interval distance between each condensing section of all the heat pipes within another of the first one and the second
one of the hybrid heat sinks and the first heat dissipation fin group in the another of the first one and the second one of
the hybrid heat sinks.

US Pat. No. 9,274,407

PHOSPHOR DEVICE AND ILLUMINATION SYSTEM AND PROJECTION APPARATUS WITH THE SAME

DELTA ELECTRONICS, INC., ...

1. A phosphor device of an illumination system, said illumination system emitting a first waveband light and having an optical
path, said phosphor device comprising:
a first section;
a second section; and
one single phosphor agent coated on said first section, wherein after said first waveband light is emitted to said first section
and received by said one single phosphor agent, said first waveband light is converted into a third waveband light and said
third waveband light is directed to said optical path, and after said first waveband light is transmitted through said second
section, said first waveband light is directed to said optical path and said first waveband light and said third waveband
light are integrated as an effective white light along said optical path so as to be projected.

US Pat. No. 9,229,034

SAMPLING CIRCUIT FOR A CURRENT TRANSFORMER

DELTA ELECTRONICS, INC., ...

1. A sampling circuit for a current transformer comprising:
a current sensing unit;
a rectification unit electrically connected to the current sensing unit;
a sampling unit electrically connected to the rectification unit and outputting a first signal, and comprising an energy leakage
device and a switching device, wherein the switching device is electrically connected to the energy leakage device in parallel
and is turned on or off according to a second signal and a third signal; and

a switching unit electrically connected to the sampling unit and turned on or off according to the second signal.

US Pat. No. 9,706,690

HEAT-DISSIPATING SYSTEM FOR HIGH-POWER CABINET AND STATIC VAR COMPENSATION SYSTEM

DELTA ELECTRONICS, INC., ...

1. A heat-dissipating system for high-power cabinet, comprising: a cabinet, which has a cuboidal shape; at least one main
air duct with a first opening and a second opening, which is formed in the cabinet, the at least one main of duct comprising
independent air ducts, and a first heat-generating assembly; a second heat-generating assembly and at least one first fan,
which are mounted in of the at least one main air duct, the first fan is located between the first heat-generating assembly
and the second heat-generating assembly; and an outlet of the first fan faces towards the first heat-generating assembly,
airflow in the main air duct flows from the first opening to the second heat-generating assembly, an inlet of the first fan,
the outlet of the first fan, and the first heat-generating assembly in sequence, and finally is discharged out of the cabinet
from the second opening of the main air duct of the cabinet; wherein the first heat-generating assembly is an IGBT power module,
the second heat-generating assembly is a reactor, and the first heat-generating assembly and the second heat-generating assembly
are both electronic assemblies used in the Static Var Compensation system, wherein a heat amount from the first heat-generating
assembly is larger than a heat amount from by the second heat-generating assembly; the first heat-generating assembly and
the second heat-generating assembly are both electronic assemblies used in the power system.

US Pat. No. 9,140,744

DOUBLY-FED INDUCTION GENERATOR SYSTEM AND THE SELF-TEST METHOD FOR THE ACTIVE CROWBAR CIRCUIT THEREOF

DELTA ELECTRONICS (SHANGH...

1. A self-test method for an active crowbar circuit, wherein the active crowbar circuit is applied to a doubly-fed induction
generator system having a rotor and a rotor-side converter, the method comprising the steps of:
driving the rotor-side converter to turn on to allow the rotor-side converter to control the current of the rotor so as to
maintain a root-mean-square value of the current of the rotor at a predetermined minimum value;

driving the rotor-side converter to turn off and driving the active crowbar circuit to turn on;
determining if the active crowbar circuit can be turned on normally, wherein the current of the rotor is larger than a predetermined
current value within a predetermined time period when the active crowbar circuit is turned on normally;

driving the active crowbar circuit to turn off; and
determining if the active crowbar circuit can be turned off normally, wherein the current of the rotor is smaller than the
predetermined current value within the predetermined time period when the active crowbar circuit is turned off normally.

US Pat. No. 9,713,280

STANDALONE UNINTERRUPTIBLE POWER SUPPLY

DELTA ELECTRONICS, INC., ...

1. An uninterruptible power supply, comprising:
a cabinet including a frame, a plurality of rails arranged in an inner wall of the frame at intervals, and a plurality of
carrier plates removably disposed on the rails; and

a power supply unit installed in the frame, including:
a control module provided in one of the carrier plates;
at least one power input module electrically connected with the control module and provided in another carrier plate;
at least one power output module electrically connected with the control module and provided in another carrier plate; and
a plurality of cables detachably connected with the control module, the power input module and the power output module, wherein
the power input module and the power output module are electrically connected with the control module through the cables,

wherein
the power supply unit has a plurality of power input modules and power output modules, the power input modules and the power
output modules are placed in adjacent, and the control module is placed between the power input modules and the power output
modules.

US Pat. No. 9,661,786

ELECTRONIC DEVICE AND METHOD FOR ASSEMBLING THE SAME

DELTA ELECTRONICS (SHANGH...

1. An electronic device, comprising:
a bottom case comprising a bottom board and a plurality of side walls connected to and surrounding the bottom board;
an accommodation unit disposed on the bottom case;
an electromagnetic induction module, wherein at least one portion of the electromagnetic induction module is disposed in the
accommodation unit;

a heat-dissipating component which is disposed on the bottom case and separated from the accommodation unit, and the heat-dissipating
component facing an inner surface of one of the side walls;

an elastic clip comprising a main body; a fixing portion disposed on the main body and mounted on the heat-dissipating component;
and a pressing portion disposed on the main body;

a printed wiring board having a first surface and a second surface, wherein the first surface faces the accommodation unit;
and

an electronic component comprising a main body and a plurality of pin feet, wherein the pin feet are electrically connected
to the printed wiring board, and the main body of the electronic component is clamped between the heat-dissipating component
and the pressing portion of the elastic clip, wherein a first minimum straight distance between the bottom board and a top
surface of the one of the side walls located away from the bottom board is smaller than a second minimum straight distance
between the bottom board and the fixing portion, and a third minimum straight distance between the elastic clip and the one
of the side walls facing the heat-dissipating component is smaller than a fourth minimum straight distance between the heat-dissipating
component and the one of the side walls facing the heat-dissipating component.

US Pat. No. 9,336,943

TRANSFORMER

DELTA ELECTRONICS (SHANGH...

1. A transformer, comprising:
a magnetic core having an axial direction and a radial direction;
a primary winding comprising a plurality of winding sections and at least one connecting section, the plurality of winding
sections being arranged along the axial direction of the magnetic core, the connecting section being connected between the
two adjacent winding sections, each of the winding sections comprising a plurality of primary winding layers and a plurality
of pull-out portions, the primary winding layers surrounding the magnetic core and arranged along the radial direction of
the magnetic core, each of the pull-out portions connecting two of the primary winding layers adjacent to said each of the
pull-out portions, part of normal projections of the primary winding layers on a surface of the magnetic core being located
between normal projections of the pull-out portions on the surface of the magnetic core; and

a plurality of secondary windings surrounding the primary winding and arranged along the axial direction of the magnetic core,
the secondary windings being insulated from each other;

wherein adjacent two of the winding sections define a first gap, adjacent two of the secondary windings define a second gap,
a size of the first gap or a number of the winding sections is determined based on a short-circuit impedance required by the
secondary windings, and a size of the second gap or a number of the secondary windings is determined based on the short-circuit
impedance required by the secondary windings.

US Pat. No. 9,480,111

APPARATUS AND METHOD FOR DRIVING SEMICONDUCTOR LIGHT-EMITTING DEVICE ASSEMBLY

Delta Electronics (Shangh...

1. A driving apparatus for driving a semiconductor light-emitting device assembly, comprising:
a driving unit configured to drive the semiconductor light-emitting device assembly;
a constant-current control unit configured to sample a current average value of the semiconductor light-emitting device assembly
and control the driving unit according to the current average value, and

a cycle by cycle control unit comprising:
a sampling circuit configured to sample a current instantaneous value of the driving unit or the semiconductor light-emitting
device assembly; and

an adjusting circuit configured to adjust an output of the driving unit when the current instantaneous value sampled by the
sampling circuit is not less than a preset reference value,

wherein when the current instantaneous value sampled by the sampling circuit is not less than a preset reference value, the
driving unit is controlled by the constant-current control unit and the cycle by cycle control unit; and

when the current instantaneous value sampled by the sampling circuit is less than the preset reference value, the driving
unit is controlled by the constant-current control unit.

US Pat. No. 9,343,970

CONVERTER AND METHOD FOR REDUCING A VOLTAGE OF NODE THEREOF

DELTA ELECTRONICS (SHANGH...

1. A converter, comprising:
a first transmitting circuit configured to receive a first AC voltage; and
a second transmitting circuit electrically coupled to the first transmitting circuit and configured to generate a second AC
voltage according to the first AC voltage,

wherein one of the first transmitting circuit and the second transmitting circuit comprises at least one divider unit and
the other one of the first transmitting circuit and the second transmitting circuit comprises at least two divider units,
wherein the divider unit includes an inductor network and a capacitor network coupled in series, and wherein the inductor
network and the capacitor network of the adjacent divider units are coupled in series alternately;

wherein the converter further comprising:
a first converting circuit electrically coupled to the first transmitting circuit,
and configured to receive a first DC voltage to generate the first AC voltage;
and a second converting circuit electrically coupled to the second transmitting circuit, and configured to receive the second
AC voltage to generate a second DC voltage,

wherein when a resonant frequency of the first transmitting circuit and the resonant frequency the second transmitting circuit
are both fr, the operating frequency of the first converting circuit or the second converting circuit is set between 0.8×fr
and 1.2×fr, wherein fr is the resonant frequency corresponding to an equivalent leakage inductance and an equivalent capacitor
of the first transmitting circuit or the second transmitting circuit.

US Pat. No. 9,655,288

ELECTRONIC DEVICE AND CAR BATTERY CHARGER

Delta Electronics (Shangh...

1. An electronic device, comprising:
a heat-dissipating base;
a heat-dissipating component disposed on the heat-dissipating base;
a first elastic clip partially mounted on the heat-dissipating component;
a first printed wiring board assembly disposed on or above the heat-dissipating base, the first printed wiring board assembly
comprising:

a first printed wiring board; and
at least one first electronic component disposed on the first printed wiring board, such that the first printed wiring board
assembly has a raised portion and a concave portion relative to the raised portion; and

a second printed wiring board assembly at least partially disposed in the concave portion and disposed between the first printed
wiring board and the heat-dissipating base, the second printed wiring board assembly comprising:

a second printed wiring board; and
at least one switching element disposed on the second printed wiring board, wherein the at least one switching element is
flatly disposed relative to the second printed wiring board, and one end of the switching element is connected to the second
printed wiring board, and the other end of the switching element is clamped between the heat-dissipating component and the
first elastic clip.

US Pat. No. 9,484,830

FIVE-LEVEL RECTIFIER

DELTA ELECTRONICS (SHANGH...

1. A five-level rectifier comprising at least one phase bridge arm, the at least one phase bridge arm comprising:
an upper-half bridge arm circuit module comprising a first power semiconductor switch unit, a second power semiconductor switch
unit, a first diode unit, a second diode unit, a first connecting busbar, a first insulated wire and a first transfer busbar,
wherein the first diode unit is connected to the second diode unit in series, a connection point between the first power semiconductor
switch unit and the second power semiconductor switch unit is connected to a positive terminal of a phase capacitor, the first
diode unit is connected to a positive terminal of a first direct-current (DC) bus capacitor, the first connecting busbar is
connected to the first diode unit and the second diode unit, the first transfer busbar is connected to the first power semiconductor
switch unit and the second power semiconductor switch unit, and the first insulated wire is connected to the first transfer
busbar and the first connecting busbar; and

an lower-half bridge arm circuit module comprising a third power semiconductor switch unit, a fourth power semiconductor switch
unit, a third diode unit, a fourth diode unit, a second connecting busbar, a second insulated wire and a second transfer busbar,
wherein the third diode unit is connected to the fourth diode unit in series, a connection point between the third power semiconductor
switch unit and the fourth power semiconductor switch unit is connected to a negative terminal of the phase capacitor, the
fourth diode unit is connected to a negative terminal of a second direct-current (DC) bus capacitor, the second diode unit
and the third diode unit are connected to a neutral point connected between the first DC bus capacitor and the second DC bus
capacitor, the second power semiconductor switch unit and the third power semiconductor switch unit are connected to an alternating-current
terminal, the second connecting busbar is connected to the third diode unit and the fourth diode unit, the second transfer
busbar is connected to the third power semiconductor switch unit and the fourth power semiconductor switch unit, the second
insulated wire is connected to the second connecting busbar and the second transfer busbar, and the upper-half bridge arm
circuit module and the lower-half bridge arm circuit module are disposed side by side and face each other.

US Pat. No. 9,362,745

POWER STORAGE MODULE AND POWER STORAGE DEVICE

DELTA ELECTRONICS (SHANGH...

1. A power storage module, comprising:
a DC/AC converter,
a first power storage element;
a second power storage element; and
at least one DC/DC converter,
wherein the first power storage element and the second power storage element are coupled to the DC side of the DC/AC converter
to form a first power storage branch and a second power storage branch respectively, wherein the first power storage branch
and the second power storage branch are connected in parallel, and wherein the at least one DC/DC converter is disposed on
the first power storage branch to increase an output impedance of the first power storage branch or disposed on the second
power storage branch to decrease an output impedance of the second power storage branch,

wherein a capacity of the first power storage element is greater than a capacity of the second power storage element, the
first power storage element is a storage cell, and the second power storage element is a super capacitor.

US Pat. No. 9,318,967

DC TO DC CONVERTER AND DC TO DC CONVERSION SYSTEM

DELTA ELECTRONICS (SHANGH...

1. A DC to DC converter, comprising:
a transformer having a transformer core, a primary winding electrically coupled to an output terminal of a primary power circuit
and a secondary winding, wherein the primary power circuit is configured to receive an input voltage and deliver a power flow
having a symmetrical voltage to a secondary side of the transformer during a positive switching cycle and a negative switching
cycle generated on the primary winding, and a magnetic flux in the transformer core is balanced through the power flow having
the symmetrical voltage;

an output inductor;
a secondary bridge synchronous rectifying circuit electrically coupled to the secondary winding of the transformer, comprising:
a first switch having a first end electrically coupled to one end of the output inductor, and a second end electrically coupled
to a first end of the secondary winding;

a second switch having a first end electrically coupled to the second end of the first switch;
a third switch having a first end electrically coupled to the first end of the first switch, and a second end electrically
coupled to a second end of the secondary winding; and

a fourth switch having a first end electrically coupled to the second end of the third switch, and a second end electrically
coupled to a second end of the second switch; and

a control circuit configured to provide a primary driving signal for the primary power circuit and a secondary driving signal
for the secondary bridge synchronous rectifying circuit, respectively, and when an output voltage of the primary power circuit
is zero, the control circuit is configured to control the first switch, the second switch, the third switch and the fourth
switch to be conductive,

wherein the control circuit comprises:
a primary driving circuit configured to output the primary driving signal;
a secondary driving circuit configured to output the secondary driving signal;
an isolation circuit configured to electrically isolate the primary driving circuit from the secondary driving circuit; and
a timing circuit configured to receive a fixed duty cycle signal or a variable duty cycle signal, and arrange a signal timing
between the primary driving signal and the secondary driving signal based on the received fixed duty cycle signal or variable
duty cycle signal.

US Pat. No. 9,341,696

METHOD, SYSTEM, AND CONTROL APPARATUS FOR SETTING OVER-CURRENT PROTECTION POINT OF ELECTRONIC DEVICE

DELTA ELECTRONICS (SHANGH...

1. A method for setting an over-current protection point of an electronic device, applied in a system for setting the over-current
protection point of said electronic device, said system comprising a parameter auto-test equipment, a first driving signal
generator, and the electronic device, the electronic device comprising an over-current protection module provided with a resistance
adjusting unit, the first driving signal generator being connected with the electronic device, the parameter auto-test equipment
being connected with the first driving signal generator and being provided with an auto-adjustment control unit, the method
comprising:
step 1: the parameter auto-test equipment transmitting a starting signal and outputting a target current for over-current
protection based on the auto-adjustment control unit;

step 2: the first driving signal generator receiving the starting signal and transmitting a driving signal to the over-current
protection module;

step 3: the electronic device receiving the target current for over-current protection, and the over-current protection module
receiving the driving signal and adjusting a resistance of the resistance adjusting unit to the over-current protection point
of the electronic device; and

step 4: the parameter auto-test equipment testing an output of the electronic device based on the auto-adjustment control
unit, wherein the setting of the over-current protection point of the electronic device is successful if the output of the
electronic device is in a predetermined range, while the setting of the over-current protection point of the electronic device
is failure if the output of the electronic device is not in the predetermined range.

US Pat. No. 9,291,168

THIN FAN AND MANUFACTURING METHOD THEREOF

DELTA ELECTRONICS, INC., ...

1. A thin fan comprising:
a housing comprising:
a circuit layout area which is an integral part of the housing and having a plurality of metal particles, wherein some of
the metal particles are exposed on the circuit layout area; and

a metal layer disposed in the circuit layout area and connected with the exposed metal particles;
a stator disposed to the housing; and
an impeller covered by the housing;
wherein there is no further circuit board disposed in the housing.

US Pat. No. 9,287,863

SWITCH DRIVING CIRCUIT

DELTA ELECTRONICS, INC., ...

1. A switch driving circuit for driving a full-controlled power switch, the switch driving circuit comprising:
a pulse-width modulation unit for converting a driving input signal into a positive-negative narrow pulse-width signal;
a pulse transformer having a primary side and a secondary side, wherein the primary side is coupled to the pulse-width modulation
unit and the positive-negative narrow pulse-width signal is transferred to the secondary side through the pulse transformer;

an anti-interference module coupled to the secondary side, wherein the positive-negative narrow pulse-width signal comprises
a plurality of positive pulses and a plurality of negative pulses, each of the positive pulses and the negative pulse has
a pulse amplitude, the anti-interference module filters out the positive pulses or the negative pulses which the pulse amplitude
does not reach an effective threshold, and the anti-interference module suppress a common-mode noise caused by a high voltage
transient variation produced when the full-controlled power switch is turned on or turned off;

a pulse-width demodulation unit coupled to the anti-interference module, for converting the filtered positive-negative narrow
pulse-width signal into a driving output signal; and

a driving-power amplifier coupled between the pulse-width demodulation unit and the full-controlled power switch,
wherein each of the driving input signal and the driving output signal is a pulse-width modulation signal, the positive pulses
of the positive-negative narrow pulse-width signal correspond to rising edges of the driving input signal or the driving output
signal, respectively, and the negative pulses of the positive-negative narrow pulse-width signal correspond to falling edges
of the driving input signal or the driving output signal, respectively.

US Pat. No. 9,312,788

CONTROL DEVICE OF POWER CONVERSION UNIT AND METHOD OF CONTROLLING POWER CONVERSION UNIT

DELTA ELECTRONICS (SHANGH...

1. A control device of a power conversion unit applied to a three-phase AC grid comprising:
a detection unit configured for detecting a three-phase voltage signal of the three-phase AC grid and calculating and generating
a negative sequence reactive current given signal;

a current detection unit configured for detecting a current of the power conversion unit to output a feedback current signal;
and

a signal processing unit configured for receiving the negative sequence reactive current given signal, a positive sequence
current given signal, and the feedback current signal to output a modulation signal;

wherein the power conversion unit is electrically coupled to the signal processing unit and the three-phase AC grid, the power
conversion unit absorbs negative sequence reactive currents from the three-phase AC grid according to the modulation signal
when the three-phase voltage signal is unbalanced so as to reduce a negative sequence voltage at an output terminal of the
power conversion unit.

US Pat. No. 9,706,682

HEAT EXCHANGING MODULE AND ELECTRONIC DEVICE APPLYING THE SAME

DELTA ELECTRONICS, INC., ...

1. A heat exchanging module, comprising:
a casing;
a plurality of first air guiding elements disposed in the casing, wherein each of the first air guiding elements comprises
a plurality of first structures and a plurality of second structures, the first structures are disposed parallelly, and the
second structures are disposed between the first structures and connected with the first structures to form a plurality of
first channels;

a plurality of first separation elements, wherein each of the first separation elements is disposed between the two adjacent
first air guiding elements; and

a plurality of second separation elements, wherein each of the second separation elements are disposed between the adjacent
two first air guiding elements, and the first separation elements and the second separation elements are respectively disposed
along two opposite edges of the corresponding two first air guiding elements to form a plurality of second channels, and an
airflow direction of the first channels is different from that of the second channels,

wherein the airflow direction of the first channels is toward a constant direction, and the airflow direction of the first
channels and the airflow direction of the second channels form an included angle of 90° in a projection direction.

US Pat. No. 9,343,975

POWER CONVERTER AND METHOD OF STABLING VOLTAGE GAIN

DELTA ELECTRONICS (SHANGH...

1. A power converter, comprising:
a primary side compensation capacitor configured to receive a first AC voltage from a first switch circuit;
a transformer, comprising a primary winding and a secondary winding, the transformer being configured to receive the first
AC voltage to generate a second AC voltage, and the primary winding of the transformer being electrically coupled to the primary
side compensation capacitor in series; and

a secondary side compensation capacitor electrically coupled to the secondary winding of the transformer in series, and configured
to transmit the second AC voltage to a second switch circuit to generate a DC output voltage,

wherein an operating frequency of the first switch circuit is set between 0.8×fa and 1.2×fb, where the fb is at most 1.5 times
of the fa, and wherein the primary side compensation capacitor and an equivalent primary side leakage inductance of the transformer
correspond to a first resonant frequency, the secondary side compensation capacitor and an equivalent secondary side leakage
inductance of the transformer correspond to a second resonant frequency, the fa is the lower one of the first resonant frequency
and the second resonant frequency, and the fb is the higher one of the first resonant frequency and the second resonant frequency,
so that a voltage gain of the power converter with an empty load is at most 2 times of the voltage gain of the power converter
with a full load.

US Pat. No. 9,338,017

METHOD AND DEVICE FOR CONTROLLING TRANSMITTER

Delta Electronics (Shangh...

1. A method for controlling a transmitter, comprising:
an awaking step of awaking and initiating the transmitter by a trigger signal generated by a timer;
an input control parameter updating step of detecting whether the transmitter receives an input control parameter from outside
of the transmitter, and if yes, updating an input control parameter stored in the transmitter by using the received input
control parameter;

an input control parameter reading step of reading the input control parameter currently stored in the transmitter;
a sensor signal acquiring step of performing operations based on the read input control parameter so as to control the transmitter
to select one sensor signal from a plurality of sensor signals, amplify the selected sensor signal with a gain within a first
gain of a first variable gain amplifier, and output the amplified sensor signal; and

a sleeping step of, after determining that the transmitter has accomplished a task specified by the read input control parameter,
resetting the timer, and entering into a sleeping state until the timer generates the trigger signal.

US Pat. No. 9,295,180

CENTRIFUGAL FAN

DELTA ELECTRONICS, INC., ...

1. A centrifugal fan, comprising:
an impeller, having an impeller diameter; and
a housing, comprising an upper plate, a lower plate and a side wall, wherein the upper plate axially corresponds to the lower
plate, a side wall is formed between the upper plate and the lower plate, an axial inlet is formed on the upper plate, a lateral
outlet is formed on the side wall, the impeller is disposed in the housing and corresponds to the inlet, and a flow path communicates
the inlet to the outlet, wherein a greatest width of the inlet is greater than or equal to the impeller diameter,

wherein the housing further comprises a guiding groove, at least one auxiliary inlet is formed in the guiding groove, the
guiding groove guides an auxiliary flow, and auxiliary flow enters the housing through the auxiliary inlet, wherein the inlet
is an axial inlet, and the auxiliary inlet is a lateral inlet,

wherein the guiding groove comprises an inclined guiding slope, and the guiding slope is inclined toward an extension direction
of the auxiliary inlet from a surface of the housing,

wherein the guiding groove comprises a guiding sheet adjacent to the guiding slope and extended laterally, the guiding slope
axially inclines downwardly from the upper plate toward an extension direction of the auxiliary inlet, and the guiding sheet
curvedly extends from the side wall into the housing toward the outlet.

US Pat. No. 9,622,385

METHOD OF ASSEMBLING A HEAT DISSIPATING MODULE OF AN ELECTRONIC DEVICE

DELTA ELECTRONICS, INC., ...

1. A method of assembling a heat dissipating module of an electronic device, the method comprising steps of:
(a) providing at least one lateral plate of a casing, at least one heat generation element, a circuit board and a fastening
assembly;

(b) firmly fixing the at least one heat generation element on the at least one lateral plate through a fixing element;
(c) combining the at least one lateral plate and the circuit board together through the fastening assembly, wherein a plurality
of pins of the at least one heat generation element are inserted into corresponding holes of the circuit board, so that the
at least one heat generation element is electrically connected with a trace of the circuit board;

(d) allowing the at least one lateral plate and the circuit board to pass through a reflow furnace, so that the at least one
heat generation element is welded on the circuit board; and

(e) fixing a lower plate on a lower portion of the at least one lateral plate.

US Pat. No. 9,291,884

METHOD OF REGULATING LIGHT WAVELENGTH FOR PROJECTION DEVICE

DELTA ELECTRONICS, INC., ...

1. A method of regulating light wavelength for a projection device, comprising the steps of:
providing a single-color light source emitting a first chromatic light;
forming a phosphor layer on an optical pathway of the single-color light source, so that the first chromatic light transmits
the phosphor layer, wherein the phosphor layer comprises a phosphor material, having a chemical formula of Ba1-xSi2O2N2:Eux, wherein x is 0.001-1;

transforming a part of the first chromatic light to a second chromatic light through the phosphor layer, and emitting the
residual first chromatic light, to wherein the wavelength of the second chromatic light is longer than the wavelength of the
first chromatic light; and

mixing the residual first chromatic light and the second chromatic light to generate a third chromatic light, wherein the
wavelength of the third chromatic light is between the first and the second chromatic lights, and the wavelength of the third
chromatic light is regulated by adjusting the proportion of the luminous intensity of the residual first chromatic light and
the second chromatic light.

US Pat. No. 9,635,781

HEAT DISSIPATING DEVICE AND ELECTRONIC APPARATUS

DELTA ELECTRONICS, INC., ...

1. A heat dissipating device for dissipating heat produced by a heating element, comprising:
a fixing assembly having a non-elastic thermal conductive member connecting to the heating element;
two moving assemblies disposed on two opposite sides of the fixing assembly, respectively, wherein each of the moving assemblies
has a mass body, is relatively moveable with respect to the fixing assembly, and forms a moving space with respect to the
fixing assembly,

wherein the fixing assembly is disposed between the two moving assemblies; and
an elastic assembly connecting the fixing assembly to the two moving assemblies to form two non-enclosed spaces.

US Pat. No. 9,641,083

CONTROL DEVICE AND CONTROL METHOD OF POWER CONVERTER AND SWITCHING POWER SUPPLY USING THE SAME

DELTA ELECTRONICS (SHANGH...

1. A control device of a power converter, wherein the power converter comprises a switch unit, wherein the control device
comprises:
a first control unit, which is coupled to the power converter to detect an output voltage of the power converter and is configured
to generate a first control signal based on the output voltage;

a variable resistor unit, which is connected to an output terminal of the first control unit and is configured to generate
a resistance value based on the first control signal; and

a second control unit, which is connected to the variable resistor unit and is configured to output a second control signal
to the switch unit in order to control operations of the switch unit,

wherein the power converter further comprises a transformer, a first terminal of the variable resistor unit is connected to
a primary winding of the transformer, and a second terminal of the variable resistor unit is connected to a first ground terminal.

US Pat. No. 9,401,658

POWER SUPPLY APPARATUS AND METHOD OF GENERATING POWER BY THE SAME

DELTA ELECTRONICS (SHANGH...

1. A power supply apparatus, comprising:
a power source;
a plurality of power converters configured for converting an input power from the power source into conversion powers; and
an output connector configured for receiving the conversion powers from the power converters and outputting one or more output
power corresponding to the conversion powers, wherein at least one of the power converters further comprises:

a converting circuit configured for converting an input voltage corresponding to the input power into a conversion voltage;
a rectifier circuit configured for rectifying the conversation voltage;
an output filler circuit electrically connected across an output of the corresponding power converter, the output filter circuit
configured for filtering the rectified conversation voltage and generating an output voltage; and

an output reverse protection circuit configured for clamping the output voltage to an operation voltage in a condition of
the output voltage being a reverse voltage, wherein the output reverse protection circuit is connected across the output of
the output filter circuit.

US Pat. No. 9,083,200

UNINTERRUPTIBLE POWER SUPPLY

DELTA ELECTRONICS, INC., ...

1. An uninterruptible power supply for outputting a three-phase load voltage to a first inductive load and a second inductive
load, comprising:
a rectifier for rectifying a three-phase AC voltage into a DC voltage;
an energy storage unit connected to the rectifier for storing backup power;
an inverter connected to the energy storage unit for converting the DC voltage into a three-phase modulating voltage according
to a switching control signal;

a filter connected to an output end of the inverter for removing high-frequency components of the three-phase modulating voltage
to generate a three-phase inverting voltage;

a bypass switch circuit connected to the filter, an input end of the rectifier, the first inductive load, and the second inductive
load for selectively outputting the three-phase AC voltage or the three-phase inverting voltage as the three-phase load voltage;
and

a control circuit for controlling operations of the uninterruptible power supply and transmitting the three-phase inverting
voltage to the first inductive load and the second inductive load through the bypass switch circuit by the bypass switch circuit
and the inverter when the three-phase AC voltage is abnormal or interrupted;

wherein the control circuit is configured to employ a flux compensation block which is set to operate with different operating
modes respectively at a startup phase and a stable phase of the second inductive load to adjust the three-phase load voltage
for compensating or correcting the flux of the second inductive load, thereby allowing the flux distribution of the second
inductive load to be unsaturated.

US Pat. No. 9,633,919

PACKAGE STRUCTURE WITH AN ELASTOMER WITH LOWER ELASTIC MODULUS

DELTA ELECTRONICS (SHANGH...

1. A package structure, comprising:
a substrate;
at least one electronic component disposed on a first surface of the substrate;
a housing disposed on the first surface of the substrate for covering the first surface of the substrate, wherein the housing
has an accommodation space, and the at least one electronic component is accommodated within the accommodation space;

at least one strut protruded from an inner surface of the housing and extended toward the accommodation space; and
at least one elastomer arranged between the corresponding strut and the substrate, wherein pressure from the corresponding
strut is transmitted to the substrate through the at least one elastomer,

wherein an elastic modulus of the at least one elastomer is lower than 1000 MPa.

US Pat. No. 9,466,932

ELECTRICAL CONNECTOR AND PLUG-IN MODULE FOR THE SAME

DELTA ELECTRONICS (CHEN Z...

1. An electrical connector, comprising:
an insulating body, providing inside the insulating body with a module socket along a back to front direction, and providing
inside the insulating body along a front to back direction with a butt socket connected to the module socket;

a housing, provided outside the insulating body; and
a plug-in module, inserted into the module socket,
wherein, the housing is provided with a welding portion, the welding portion being electrically connected to a grounded welding
portion of the circuit board,

wherein the welding portion extends inward from the housing, and
wherein the plug-in module comprises:
a base, comprising a bottom plate of the base, a front plate of the base and a back plate of the base, and a tongue plate
extending from the bottom plate of the base forward beyond the front plate of the base;

a plurality of input terminals, fixed to the back plate of the base, and two ends of each of the input terminals extending
respectively beyond a top end of the back plate of the base and a bottom end of the bottom plate of the base;

a plurality of output terminals, fixed to the tongue plate and the front plate of the base, and two ends of each of the output
terminals extending respectively beyond a top end of the front plate of the base and the tongue plate; and

a PCB module, comprising at least one circuit board provided at the top ends of the front plate of the base and the back plate
of the base and connected to the plurality of input terminals and the plurality of output terminals.

US Pat. No. 9,401,356

POWER CIRCUIT, CONTROL METHOD, POWER SYSTEM, AND PACKAGE STRUCTURE OF POWER CIRCUIT

DELTA ELECTRONICS (SHANGH...

1. A power circuit, comprising a first quasi-cascade power unit, the first quasi-cascade power unit comprising:
a normally-on switch, comprising a first end, a second end and a control end;
a normally-off switch, electrically connected to the normally-on switch in series, comprising a first end, a second end and
a control end;

a control unit, comprising a first end, a second end, a third end and a fourth end, wherein the first end of the control unit
is electrically connected to the control end of the normally-off switch, the third end of the control unit is electrically
connected to the control end of the normally-on switch;

a first switch unit, comprising a first end and a second end, wherein the first end of the first switch unit is electrically
connected to the control end of the normally-on switch, the second end of the first switch unit is electrically connected
to the second end of the normally-off switch; and

a second switch unit, comprising a first end and a control end, wherein the control end of the second switch unit is electrically
connected to the second end of the control unit, the first end of the second switch unit is electrically connected to the
second end of the normally-on switch.

US Pat. No. 9,412,510

THREE-PHASE REACTOR

Delta Electronics (Shangh...

1. A three-phase reactor, comprising:
an upper yoke and a lower yoke, the upper yoke and the lower yoke containing a first material; and
at least three first core columns, the first core columns containing a second material, and both ends of each of the first
core columns being connected with the upper yoke and the lower yoke, respectively,

wherein the relative permeability of the first material is greater than that of the second material, and at least one air
gap is positioned in each of the first core columns; and

no air gap is positioned at interfaces between the first core columns and the upper yoke or interfaces between the first core
columns and the lower yoke; and

windings wound around the first core columns, wherein a minimum distance from the windings to the first core column is 3-5
times of a thickness of the air gap.

US Pat. No. 9,312,753

POWER CONVERTER WITH LOW COMMON MODE NOISE

DELTA ELECTRONICS (SHANGH...

1. A power converter with low common mode noise, comprising:
a ground terminal;
a power converting unit, including a first DC terminal, a second DC terminal, a first AC terminal, a second AC terminal, and
a third AC terminal;

a capacitor unit of common DC bus, coupled to the first DC terminal and the second DC terminal;
a filtering capacitor unit, comprising a first filtering capacitor, a second filtering capacitor and a third filtering capacitor,
wherein one end of the first filtering capacitor, the second filtering capacitor and the third filtering capacitor are respectively
coupled to a first phase terminal, a second phase terminal and a third phase terminal, and the other end of the first filtering
capacitor, the second filtering capacitor and the third filtering capacitor are coupled to each other for forming a neutral
terminal; and

a filtering inductor unit, comprising:
a first primary winding, including a first primary winding low-frequency end and a first primary winding high-frequency end,
wherein the first primary winding low-frequency end is coupled to the first phase terminal and the first filtering capacitor,
and the first primary winding high-frequency end being coupled to the first AC terminal;

a first auxiliary winding, being magnetic coupled to the first primary winding, and including a first auxiliary winding high-frequency
end and a first auxiliary winding low-frequency end coupling to the neutral terminal;

a second primary winding, including a second primary winding low-frequency end and a second primary winding high-frequency
end, wherein the second primary winding low-frequency end is coupled to the second phase terminal and the second filtering
capacitor, and the second primary winding high-frequency end being coupled to the second AC terminal;

a second auxiliary winding, being magnetic coupled to the second primary winding, and including a second auxiliary winding
high-frequency end and a second auxiliary winding low-frequency end coupling to the first auxiliary winding high-frequency
end;

a third primary winding, including a third primary winding low-frequency end and a third primary winding high-frequency end,
wherein the third primary winding low-frequency end is coupled to the third phase terminal and the third filtering capacitor,
and the third primary winding high-frequency end being coupled to the third AC terminal; and

a third auxiliary winding, being magnetic coupled to the third primary winding, and including a third auxiliary winding low-frequency
end coupling to the second auxiliary winding high-frequency end and a third auxiliary winding high-frequency end coupling
to the ground terminal.

US Pat. No. 9,276,510

AC MOTOR

DELTA ELECTRONICS, INC., ...

1. An AC motor driven by an AC voltage, comprising:
a first motor coil and a second motor coil to receive the AC voltage;
a switch circuit electrically connected to the first motor coil and the second motor coil to control a first current passing
through the first motor coil or a second current passing through the second motor coil;

a position detector, comprising a Hall element to detect a position of a rotor and outputting a polarity signal;
a controller to receive the polarity signal from the position detector, and control the switch circuit to make the current
be the first current with a first direction or the second current with a second direction according to the AC voltage and
the polarity signal, wherein the first direction is opposite to the second direction; and

an AC/DC transformer for converting the AC voltage into a DC voltage, and outputting the DC voltage to the controller and
the position detector.

US Pat. No. 9,268,135

HEAD-UP PROJECTION SYSTEM

DELTA ELECTRONICS, INC., ...

1. A head-up projection system, comprising:
a mounting member having a receptacle and mounted on a roof of a vehicle, the mounting member comprising:
a supporting plate;
at least two ear elements, extended outwardly from and horizontally with two opposite side edges of the supporting plate respectively,
wherein each of the at least two ear elements has a through hole or a through slot for allowing a fixing element to pass through
and secured to the roof of the vehicle;

a frame, disposed at one surface of the supporting plate and defining the receptacle with the supporting plate, wherein the
receptacle has a first opening and a second opening, and the portable projector is accommodated in the receptacle of the mounting
member from the second opening;

at least two extension plates, extended outwardly from the two opposite side edges of the supporting plate and vertically
to the surface of the supporting plate respectively; and

two arms, each of the two arms having a first end pivotally jointed to the mounting member and a second end jointed with the
optical screen, wherein the optical unit is disposed between the first ends of the two arms;

a portable projector detachably installed in the receptacle of the mounting member and configured to connect with a mobile
communication and computing device with a navigation function for displaying a navigation information image in the vehicle
from the mobile communication and computing device;

an optical screen; and
an optical unit disposed at an optical path between the portable projector and the optical screen,
wherein the optical unit disposed at the optical path between the portable projector and the optical screen for forming an
intermediate real image of an image from the portable projector, and the optical screen is configured to form an enlarged
virtual image of the intermediate real image and reflect a light from the optical unit toward the eyes of a driver.

US Pat. No. 9,570,999

DC-DC CONVERTER AND DC-DC CONVERTER SYSTEM THEREOF

Delta Electronics (Shangh...

1. A DC-DC converter comprising: a power conversion circuit; and a current detection circuit configured to detect current
flowing into the power conversion circuit or flowing out of the power conversion circuit, comprising: an inductor coupled
to the power conversion circuit; a detection module comprising an induction winding and a capacitor which are electrically
coupled in series, wherein the detection module and the inductor are coupled in parallel; and an output module coupled to
two ends of the capacitor and configured to generate a current detection signal reflecting the current flowing into the power
conversion circuit or flowing out of the power conversion circuit.

US Pat. No. 9,160,198

BATTERY CHARGING METHOD AND DEVICE USING THE SAME

DELTA ELECTRONICS, INC., ...

1. A method for charging batteries using an unstable power source, comprising:
(a) defining first to third charging regions according to a first predetermined voltage, a second predetermined voltage, a
third predetermined voltage, and a charging saturation voltage of a battery; wherein the charging saturation voltage is higher
than the first predetermined voltage; wherein the second predetermined voltage is between the first predetermined voltage
and the charging saturation voltage; wherein the third predetermined voltage is between the second predetermined voltage and
the charging saturation voltage;

(b) measuring the initial voltage of the battery;
(c) determining a charging region of the battery according to the initial voltage of the battery and determining a threshold
charging current according to the charging regions of the battery;

(d) charging the battery according to the threshold charging current;
(e) continuously measuring a plurality of voltages in the battery during a predetermined period and determines an average
voltage of the battery according to the plurality of voltages in the battery;

(f) determining if the previously determined charging region of the battery has changed according to the average voltage of
the battery;

(g) when the charging region of the battery has changed and the average voltage of the battery is lower than the charging
saturation voltage, then lowering the threshold charging current and repeating steps (d)˜(f), wherein if the previously determined
charging region of the battery has changed and the average voltage of the battery is equal to the charging saturation voltage,
stopping the charging of the battery, wherein the first charging region, the second charging region, and the third charging
region correspond to a first threshold charging current, a second threshold charging current, and a third threshold charging
current respectively, wherein the first threshold charging current is higher than the second threshold charging current, and
the second threshold charging current is higher than the third threshold charging current.

US Pat. No. 9,608,608

POWER MODULE

Delta Electronics (Shangh...

1. A power module, comprising:
a base plane;
at least one switch chip assembled on the base plane; and
a voltage clamping circuit for clamping a voltage spike occurring on the at least one switch chip, comprising components of
a charging loop, wherein the components of the charging loop at least comprise a capacitor,

a projection of a center point of at least one of the components of the charging loop on the base plane is located within
at least one first circle, defined with a center of the first circle being a center point of the at least one switch chip,
and with a radius of the first circle being a product of a maximum one of a length and a width of the at least one switch
chip and a first coefficient which is a multiple of 0.5.

US Pat. No. 9,177,957

EMBEDDED PACKAGING DEVICE

DELTA ELECTRONICS, INC., ...

1. An embedded packaging device, comprising:
a leadframe;
a first semiconductor component, disposed on the leadframe;
a second semiconductor component, disposed on the leadframe, and electrically connected with the first semiconductor component;
a passive component, disposed on the leadframe, and electrically connected with the first semiconductor component and the
second semiconductor component;

a first dielectric layer, formed on the leadframe, and covering the first semiconductor component, the second semiconductor
component, and the passive component;

a plurality of first conductive vias, formed in the first dielectric layer; and a first conductive film, formed on the first
dielectric layer, and electrically leadframe through the plurality of first conductive vias;

wherein at least one of the first semiconductor component and the second semiconductor component is flip-chip mounted on the
leadframe;

wherein the first semiconductor component is a High-Voltage (HV) switch having a first source pad, a first drain pad, and
a first gate pad, and wherein the second semiconductor component is a Low-Voltage (LV) switch having a second source pad,
a second drain pad, and a second gate pad.

US Pat. No. 9,620,448

POWER MODULE

DELTA ELECTRONICS (SHANGH...

1. A power module comprising:
a magnetic assembly having a first magnetic core, a second magnetic core and a receiving space, wherein the first magnetic
core has a first top surface, a first bottom surface and at least one first sidewall through-hole, the second magnetic core
is coupled with the first magnetic core, and the receiving space is formed between the first magnetic core and the second
magnetic core;

at least a switching device having a first electrode, wherein the switching device is disposed on the first top surface of
the first magnetic core and accommodated in the receiving space;

a first upper conductive element disposed on the first top surface of the first magnetic core and electrically connected to
the first electrode of the switching device; and

a first sidewall conductive element disposed in the first sidewall through-hole and electrically connected to the first upper
conductive element.

US Pat. No. 9,602,019

VOLTAGE-ADJUSTING DEVICE AND METHOD IN POWER CONVERSION SYSTEM

DELTA ELECTRONICS (SHANGH...

1. A voltage-adjusting device applied in a power conversion system, the power conversion system comprising a Vienna rectifier,
a DC bus, and an inverter, the Vienna rectifier converting a three-phase AC voltage of a grid to a DC bus voltage, the inverter
being electrically coupled to the DC bus and generating a three-phase AC signal based on the DC bus voltage transmitted by
the DC bus, the voltage-adjusting device comprising:
a grid voltage sampling module, electrically coupled to the grid, for sampling a grid voltage;
a given bus voltage calculating module for calculating a given DC bus voltage based on the grid voltage;
a voltage-adjusting module for receiving the DC bus voltage and the given DC bus voltage, and outputting an active current
given signal based on the DC bus voltage and the given DC bus voltage;

a current control module electrically coupled to the voltage-adjusting module, which is configured for receiving a three-phase
AC current from the grid, the active current given signal and the reactive current given signal to output a three-phase control
voltage;

a pulse width modulation (PWM) module for receiving the three-phase control voltage and the DC bus voltage to output a pulse
control signal to the Vienna rectifier; and

a rectifier switch control module for receiving the DC bus voltage and comparing it with a DC bus voltage threshold, and outputting
a switch control signal according to a comparison result, wherein the pulse width modulation module outputs the pulse control
signal based on the three-phase control voltage, the DC bus voltage and the switch control signal.

US Pat. No. 9,577,350

PIN AND A PRINTED CIRCUIT BOARD

DELTA ELECTRONICS (SHANGH...

1. A pin, comprising:
a pin body; and
an insertion head disposed on an end of the pin body and including a base and a guide post;
the base being cylindrical, the bottom of which is disposed on the end of the pin body; and
the guide post being a prism, which is coaxially connected to the base;
wherein the projection of a circumcircle of a cross section of the guide post completely coincides with that of a cross sectional
circle of the base along the direction of an axis of the guide post, and both the cross section of the guide post and the
cross sectional circle of the base are perpendicular to the axis of the guide post.

US Pat. No. 9,627,959

SWITCH POWER CONVERTER AND FREQUENCY RESPONSE CHARACTERISTIC TESTING AND ADJUSTING METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. A switch power converter comprising:
a switch power unit comprising at least a power switch;
a controller configured to generate a control signal for the power switch;
a detector configured to detect an output voltage signal and/or an output current signal of the switch power unit and output
a sampling signal; and

a testing and adjusting unit configured to receive the sampling signal and output a testing signal to the controller, the
testing and adjusting unit comprising:

a generator for generating an AC disturbing signal;
a test part for receiving the AC disturbing signal and the sampling signal so as to measure an open-loop transfer function
of the switch power converter, the test part comprising:

a compensator configured for receiving the sampling signal and for outputting a compensation signal; and
a signal combiner configured for receiving the compensation signal and the AC disturbing signal and for outputting a mix signal
to the controller; and

an adjusting part for adjusting the compensator to compensate the switch power converter when a frequency response characteristic
of the switch power converter does not match a target frequency response characteristic based on data tested by the test part,

wherein
the AC disturbing signal has a frequency that varies with time and causes a difference in the sampling signal and the testing
signal so as to test the open-loop transfer function of the switch power converter, and

the compensator compensates the frequency response characteristic of the switch power converter when the frequency response
characteristic of the switch power converter does not match the target frequency response characteristic.

US Pat. No. 9,287,231

PACKAGE STRUCTURE WITH DIRECT BOND COPPER SUBSTRATE

1. A package structure, comprising:
a first insulation layer, wherein at least one first conductive via is formed in the first insulation layer;
a first conductive layer disposed on a top surface of the first insulation layer and in contact with the at least one first
conductive via;

a direct bond copper substrate comprising a second conductive layer, a third conductive layer and a ceramic base, wherein
the ceramic base is disposed on a bottom surface of the first insulation layer and exposed to the first insulation layer by
a press-fit operation and comprises a first side surface and a second side surface opposite the first side surface exposed
to surroundings, the second conductive layer is disposed on a top surface of the ceramic base and embedded within the first
insulation layer, and the third conductive layer is disposed on a bottom surface of the ceramic base; and

at least one first electronic component embedded within the first insulation layer and attached on the second conductive layer
through a fixing material, wherein the first electronic component comprises at least one first conducting terminal, and the
at least one first conducting terminal is electrically connected with the second conductive layer and/or electrically connected
with the first conductive layer through the at least one first conductive via.

US Pat. No. 9,627,917

DEVICE FOR WIRELESS CHARGING CIRCUIT

Delta Electronics (Shangh...

1. A device for wireless charging circuit, the device comprising:
a primary circuit box, which comprises at least one first switch unit;
a secondary circuit box, which comprises at least one second switch unit;
a transmission plate, which comprises a primary inductor of a transformer and a primary compensation capacitor, the primary
inductor being coupled in series with the primary compensation capacitor; and

a receiving plate, which comprises a secondary inductor of the transformer;
wherein the transmission plate and the receiving plate are magnetically coupled with each other; the transmission plate is
coupled with the primary circuit box; and the receiving plate is coupled with the secondary circuit box; and

the transmission plate is a closed container, and the receiving plate is a closed container.

US Pat. No. 9,280,040

PROJECTION SCREEN AND PROJECTION SYSTEM USING THE SAME

DELTA ELECTRONICS, INC., ...

1. A projection screen comprising:
a reflector; and
a plurality of compound lenses arranged at the same side of the reflector in an array manner, each of the compound lenses
having a first lens portion and a second lens portion, the first lens portion being disposed between the second lens portion
and the reflector, a surface of the first lens portion opposite to the reflector having a first radius of curvature, and a
surface of the second lens portion opposite to the reflector having a second radius of curvature, the first radius of curvature
having a length greater than the second radius of curvature;

wherein the first lens portion is a convex lens portion, and a lens pupil is imaged by the compound lenses and enlarges to
the viewing zone of the projection screen.

US Pat. No. 9,608,529

CONVERTER AND METHOD FOR CONTROLLING THE SAME

Delta Electronics (Shangh...

1. A method for controlling a Flyback converter, comprising:
a load detecting step for detecting a load at an output of the Flyback converter, wherein the load varies between zero and
a peak value, the Flyback converter comprises a switch; and

an operating mode control step for controlling the Flyback converter to switch between two or more of a continuous conduction
mode, a valley conduction mode and a burst mode according to the detected load,

wherein
the operating mode control step further comprises:
a continuous conduction mode control sub-step for controlling the Flyback converter to switch to the continuous conduction
mode when the load is greater than or equal to a first threshold;

a valley conduction mode control sub-step for controlling the Flyback converter to switch to the valley conduction mode when
the load is less than the first threshold and greater than a second threshold, the first threshold being greater than the
second threshold; and

a burst mode control sub-step for controlling the Flyback converter to switch to the burst mode when the load is less than
the second threshold, and the valley conduction mode control sub-step comprises:

a switch resonance voltage detecting sub-step for detecting a voltage waveform of an auxiliary winding coupled with a primary
winding of the Flyback converter when the load is less than the first threshold and greater than the second threshold, wherein
the voltage on the auxiliary winding reflects a resonance voltage imposed on the switch of the Flyback converter; and

a switch turn-on timing determining sub-step for determining a time point when the voltage on the auxiliary winding is at
a valley as the turn-on timing of the switch.

US Pat. No. 9,559,604

DC/DC CONVERTER AND CONTROL METHOD OF DC/DC CONVERTER

Delta Electronics (Shangh...

1. A DC/DC converter comprising:
an output voltage regulation circuit configured to regulate an output voltage of the DC/DC converter, so as to output a duty
cycle regulation signal;

a PWM generator electrically coupled to the output voltage regulation circuit, and configured to generate a first duty cycle
signal according to a first clock signal and the duty cycle regulation signal;

a detection circuit configured to output a control signal according to a second clock signal and a feedback signal, wherein
the second clock signal and the first clock signal keep the first duty cycle signal and the control signal in a same frequency,
and the feedback signal is used to detect whether or not a transient change of an input voltage of the DC/DC converter occurs;
and

a CBC regulation circuit electrically coupled to the PWM generator and the detection circuit, and configured to output a second
duty cycle signal according to the first duty cycle signal and the control signal,

wherein when a transient change of the input voltage occurs, the control signal is a square wave signal, and the second duty
cycle signal is a signal which is obtained by performing a logic AND operation with the first duty cycle signal and the control
signal.

US Pat. No. 9,213,225

POLARIZATION CONVERTER FOR USE IN A PROJECTOR APPARATUS AND PROJECTOR APPARATUS COMPRISING THE POLARIZATION CONVERTER

DELTA ELECTRONICS, INC., ...

1. A polarization converter for use in a projector apparatus, the polarization converter comprising:
a polarizing beam splitter for splitting a first light into a first light beam having a first polarized direction and a second
light beam having a second polarized direction;

a half wavelength retarder disposed on a side of the polarizing beam splitter for receiving the second light beam, the second
light beam having the second polarized direction being converted into the second light beam having the first polarized direction
by the half wavelength retarder, and the first light beam and the second light beam having the first polarized direction being
coupled to form a first polarized light having the first polarized direction; and

a quarter wavelength retarder disposed behind the half wavelength retarder for receiving the first polarized light and converting
the first polarized light into a first circularly polarized light;

wherein the polarizing beam splitter splits a second light into a third light beam having the second polarized direction and
a fourth light beam having the first polarized direction, and the half wavelength retarder receives the fourth light beam,
the fourth light beam having the first polarized direction is converted into the fourth light beam having the second polarized
direction by the half wavelength retarder, and the third light beam and the fourth light beam having the second polarized
direction are coupled to form a second polarized light having the second polarized direction, and the quarter wavelength retarder
receives the second polarized light and converts the second polarized light into a second circularly polarized light.

US Pat. No. 9,152,029

OPTICAL MODULE FOR USE IN A PROJECTOR APPARATUS AND PROJECTOR APPARATUS

Delta Electronics, Inc., ...

1. An optical module for use in a projector apparatus, the optical module comprising:
a curved reflecting component, which has a focus, a transmissive portion, a first reflecting portion and a second reflecting
portion, and the transmissive portion being disposed on the first reflecting portion;

a first filtering component;
a second filtering component disposed at a side of the first filtering component;
a rolling component, which includes a first transforming portion and a second transforming portion, each of the first transforming
portion and the second transforming portion comprising a wavelength transforming unit, and the first transforming portion
and the second transforming portion independently passing through the focus in a first period and a second period;

a reflecting component disposed between the curved reflecting component and the first and the second filtering components;
and

a first collecting component disposed between the reflecting component and the first and the second filtering components,
wherein, in the first period, a first waveband light transmits into the transmissive portion and then is transformed into
a second waveband light via the first transforming portion, and the second waveband light is transformed into a first emergent
light via the second reflecting portion and the first filtering component, and in the second period, the first waveband light
transmits into the transmissive portion and then is transformed into the second waveband light via the second transforming
portion, and the second waveband light is transformed into a second emergent light via the first reflecting portion and the
second filtering component.

US Pat. No. 9,658,258

POWER CONVERSION SYSTEM AND VOLTAGE SAMPLING DEVICE THEREOF

DELTA ELECTRONICS (SHANGH...

1. A voltage sampling device, comprising:
a first input path, comprising:
a first input voltage-dividing resistor unit, electrically coupled between a first voltage input terminal and a first node,
the first input voltage-dividing resistor unit receiving a first input voltage from the first voltage input terminal;

a second input voltage-dividing resistor unit, electrically coupled between the first node and a ground terminal, wherein
the first input voltage-dividing resistor unit and the second input voltage-dividing resistor unit generate a first input
divided voltage at the first node according to the first input voltage; and

a first DC (direct current) voltage-dividing resistor unit, electrically coupled between the first node and a DC voltage source,
wherein the DC voltage source generates a first DC bias voltage via the first DC voltage-dividing resistor unit at the first
node, and the first DC bias voltage combines with the first input divided voltage to generate a first sampled voltage signal;

a second input path, comprising:
a third input voltage-dividing resistor unit, electrically coupled between a second voltage input terminal and a second node,
the third input voltage-dividing resistor unit receiving a second input voltage from the second voltage input terminal;

a fourth input voltage-dividing resistor unit, electrically coupled between the second node and the ground terminal, wherein
the third input voltage-dividing resistor unit and the fourth input voltage-dividing resistor unit generate a second input
divided voltage at the second node according to the second input voltage; and

a second DC voltage-dividing resistor unit, electrically coupled between the second node and the DC voltage source, wherein
the DC voltage source generates a second DC bias voltage via the second DC voltage-dividing resistor unit at the second node,
and the second DC bias voltage combines with the second input divided voltage to generate a second sampled voltage signal,
wherein resistances of the third input voltage-dividing resistor unit, the fourth input voltage-dividing resistor unit and
the second DC voltage-dividing resistor unit are substantially the same as the first input voltage-dividing resistor unit,
the second input voltage-dividing resistor unit and the first DC voltage-dividing resistor unit;

a third input path, comprising:
a fifth input voltage-dividing resistor unit, electrically coupled between a third voltage input terminal and a third node,
the fifth input voltage-dividing resistor unit receiving a third input voltage from the third voltage input terminal;

a sixth input voltage-dividing resistor unit, electrically coupled between the third node and the ground terminal, wherein
the fifth input voltage-dividing resistor unit and the sixth input voltage-dividing resistor unit generate a third input divided
voltage at the third node according to the third input voltage; and

a third DC voltage-dividing resistor unit, electrically coupled between the third node and the DC voltage source, wherein
the DC voltage source generates a third DC bias voltage via the third DC voltage-dividing resistor unit at the third node,
and the third DC bias voltage combines with the third input divided voltage to generate a third sampled voltage signal, wherein
resistances of the fifth input voltage-dividing resistor unit, the sixth input voltage-dividing resistor unit and the third
DC voltage-dividing resistor unit are substantially the same as the first input voltage-dividing resistor unit, the second
input voltage-dividing resistor unit and the first DC voltage-dividing resistor unit; and

a signal processing module, the signal processing module receiving the first sampled voltage signal, the second sampled voltage
signal and the third sampled voltage signal to perform signal processing.

US Pat. No. 9,163,640

FAN

DELTA ELECTRONICS, INC., ...

1. A fan, comprising:
a housing having an accommodating space;
an impeller disposed in the accommodating space and having a hub and a plurality of blades surrounding the hub; and
at least one position-limiting mechanism located between the top of the blade and the inner side of the housing, and disposed
on the top of the blade or the inner side of the housing,

wherein the distance from the position-limiting mechanism to a shaft of the hub is between a distance from the outermost end
of the tail portion of the blade to the shaft and a distance from the opening of the housing to the shaft.

US Pat. No. 9,667,151

INTEGRATED MAGNETIC COMPONENT AND CONVERTER USING THE SAME

Delta Electronics (Shangh...

1. An integrated magnetic component, comprising:
a magnetic core having a first magnetic column, a second magnetic column, a third magnetic column, and a fourth magnetic column
arranged in sequence; and

a plurality of windings, which are wound on the magnetic core, wherein the plurality of windings comprise a primary winding,
a first secondary winding, a second secondary winding, and an inductor winding, wherein:

the primary winding, the first secondary winding and the second secondary winding are wound only on the second magnetic column,
and the first secondary winding is coupled to the second secondary winding; and

the inductor winding is wound only on the third magnetic column, and an end of the inductor winding is coupled to a connection
where the first secondary winding and the second secondary winding couple to each other.

US Pat. No. 9,634,573

POWER CONVERTER INCLUDING TWO CONVERTER CIRCUIT MODULES SHARING ONE DC CAPACITOR MODULE

DELTA ELECTRONICS (SHANGH...

1. A power converter, comprising:
a cabinet;
a first converter circuit module disposed in the cabinet and comprising at least one first bridge arm;
a second converter circuit module disposed in the cabinet and comprising at least one second bridge arm, wherein the first
bridge arm and the second bridge arm are parallel to a first direction and arranged side by side along a second direction,
and an air passage is formed between the first bridge arm and the second bridge arm; and

a DC capacitor module disposed in the cabinet and electrically connected between the first bridge arm and the second bridge
arm, so that the first bridge arm and the second bridge arm share the DC capacitor module.

US Pat. No. 9,620,292

DIRECT-CURRENT CAPACITOR MODULE AND LAMINATED BUSBAR STRUCTURE THEREOF

DELTA ELECTRONICS (SHANGH...

1. A direct-current capacitor module, comprising:
a plurality of direct-current capacitors, each of the direct-current capacitors comprising two capacitor binding posts, the
direct-current capacitors being grouped into a first portion and a second portion, the capacitor binding posts of the direct-current
capacitors in the first portion being disposed to face the capacitor binding posts of the direct-current capacitors in the
second portion respectively; and

a laminated busbar structure configured to be electrically connected with the capacitor binding posts of the direct-current
capacitors, the laminated busbar structure having a positive wiring terminal and a negative wiring terminal, the laminated
busbar structure comprising:

a first busbar layer comprising a first sub-busbar electrically connected between at least two direct-current capacitors in
the first portion;

a second busbar layer comprising a second sub-busbar electrically connected between at least two direct-current capacitors
in the second portion; and

an insulation layer disposed between the first busbar layer and the second busbar layer.

US Pat. No. 9,734,943

ELECTROMAGNETIC DEVICE AND CONDUCTIVE STRUCTURE THEREOF

DELTA ELECTRONICS (SHANGH...

1. A conductive structure for an electromagnetic device, comprising:
a conductive sheet being wound around an accommodating space and having two electrical connection terminals and a plurality
of conductive protruding portions and a plurality of base portions, wherein the conductive protruding portions protrude from
the base portions and being arranged between the electrical connection terminals, and two of the conductive protruding portions
adjacent to each other define a first heat dissipation passage, wherein at least one of the conductive protruding portions
is a hollow structure having two openings on opposite ends thereof and has a second heat dissipation passage, and the second
heat dissipation passage and the first heat dissipation passage are arranged alternately.

US Pat. No. 9,281,765

MOTOR DECELERATION METHOD AND MOTOR DRIVING SYSTEM USING THE SAME

DELTA ELECTRONICS, INC., ...

1. A motor deceleration method for a motor driving system, the motor driving system being configured to drive a motor, the
motor driving system comprising a motor driver, a current sensor and a traction energy controller, the motor driver comprising
a converter and a voltage-regulator capacitor electrically connected with an input terminal of the converter, the converter
outputting a driving signal containing a voltage value, a current value and a frequency value for driving the motor, the motor
deceleration method comprising steps of:
(a) controlling descent speeds of the voltage value and the frequency value of the driving signal according to a preset deceleration
time period when a deceleration of the motor is launched;

(b) the traction energy controller issuing a voltage compensation value according to a result of comparing the current value
with a preset current level, and increasing the voltage value according to the voltage compensation value, so that the current
value is increased to the preset current level, wherein the traction energy controller further provides a frequency compensation
value to control the frequency value, wherein according to the frequency compensation value, an electrical energy is fed back
from the motor to the motor driving system to adjust a DC voltage of the voltage-regulator capacitor, so that the voltage
value is increased and the current value is correspondingly increased to and maintained at the preset current level; and

(c) if the current value fails to be maintained at the preset current level according to the frequency compensation value
and the voltage compensation value, the traction energy controller gradually decreasing the voltage compensation value to
zero, so that a rotating speed of the motor is gradually decreased to a preset speed.

US Pat. No. 9,275,982

METHOD OF FORMING INTERCONNECTION STRUCTURE OF PACKAGE STRUCTURE

DELTA ELECTRONICS, INC., ...

1. A method of forming a package structure comprising:
providing a first semiconductor device having a first side and a second side opposite to to the first side;
forming a via-hole through the first semiconductor device, wherein the via-hole has a first opening neighboring the first
side and a second opening neighboring the second side;

forming a first pad covering the first opening;
forming a via structure in the via-hole subsequent to forming the first pad, wherein the via structure comprises a conductive
material and is adjoined to the first pad; and

substantially vertically integrating the first semiconductor device with a second semiconductor device.

US Pat. No. 9,820,414

POWER CONVERSION DEVICE WITH COOLING SYSTEM

DELTA ELECTRONICS (SHANGH...

1. A power conversion device, comprising:
a casing comprising a base plate and a side wall, the base plate having a concave recess therein, the base plate forming a
base plate convex hull at a side opposite to the concave recess, the side wall surrounding the base plate;

a middle plate having a middle plate groove therein, the middle plate groove corresponding to the base plate convex hull,
the middle plate and the base plate combining up, such that the base plate convex hull fluidly seals the middle plate groove,
making the middle plate groove form a first coolant channel, the middle plate forming a middle plate convex hull at a side
opposite to the middle pate groove, the middle plate convex hull and the side wall forming an accommodation space in between;

a converter module at least partially located in the concave recess; and
at least one fixing piece fastening together the middle plate and the base plate and being at least partially located in the
accommodation space.

US Pat. No. 9,667,178

VARIABLE FREQUENCY SPEED CONTROL SYSTEM AND METHOD OF THE SAME

DELTA ELECTRONICS (SHANGH...

1. A variable frequency speed control system having a Low Voltage Ride Through (LVRT) function which comprises a variable
frequency drive (VFD) having a rectifier, a DC bus and an inverter, wherein the rectifier converts a grid voltage to a DC
bus voltage, the inverter converts the DC bus voltage to a three phase AC signal by the DC bus, the variable frequency speed
control system further comprising:
a voltage drop detecting module electrically coupled to a grid, for sampling the grid voltage, generating a voltage drop coefficient
according to the sampled grid voltage and a rated grid voltage, and generating a corresponding operation mode switching signal
according to the voltage drop coefficient;

a bus voltage detecting module electrically coupled to the DC bus, for sampling the DC bus voltage;
a current detecting module electrically coupled to the inverter, for sampling a three phase current signal of the three phase
AC signal outputted from the inverter;

an active current decomposing module coupling with the current detecting module, for retrieving a load active current component
of the inverter from the three phase current signal sampled by the current detecting module to generate a load active current
component;

a power reduction control module coupling with the voltage drop detecting module, for receiving the voltage drop coefficient
from the voltage drop detecting module and the load active current component from the active current decomposing module to
generate a first frequency decreasing amount;

renewable power control module coupling with the bus voltage detecting module and the active current decomposing module, for
receiving the DC bus voltage from the bus voltage detecting module, a maintaining command voltage and the load active current
component from the active current decomposing module to generate a second frequency decreasing amount;

a frequency control module for generating target frequency signal according to a given frequency control signal;
an operation mode selecting module coupling with the power reduction control module, the renewable power control module and
the frequency control module, for receiving the target frequency signal, the first frequency decreasing amount and the second
frequency decreasing amount to generate an output frequency signal according to the operation mode switching signal; and

an inverter control module for generating a three phase modulating signal according to the output frequency signal, which
is used to control the operation of inverter.

US Pat. No. 9,667,166

FIVE-LEVEL CONVERTING DEVICE

Delta Electronics (Shangh...

1. A five-level converting device, comprising:
an alternating current (AC) terminal;
a bus capacitor module, having a positive terminal, a negative terminal and a neutral point;
a first switch module, having two terminals connected to the neutral point of the bus capacitor module and the AC terminal
respectively, wherein the first switch module comprises a plurality of bidirectional switching circuits cascaded to each other,
each of the bidirectional switching circuits comprises two first switching units reversely connected in series;

a second switch module, having two terminals connected to the positive terminal of the bus capacitor module and the AC terminal
respectively, wherein the second switch module comprises a plurality of second switching units connected in series;

a third switch module, having two terminals connected to the negative terminal of the bus capacitor module and the AC terminal
respectively, wherein the third switch module comprises a plurality of third switching units connected in series;

a first flying capacitor unit, connected across the first switch module and the second switch module; and
a second flying capacitor unit, connected across the first switch module and the third switch module, wherein the first flying
capacitor unit and the second flying capacitor unit are connected to different connection points between the first switching
units of the first switch module,

wherein the first flying capacitor unit has a first end connected to the second switch module and a second end connected to
a first connection point of the first switch module without connecting any other flying capacitor unit, and the second flying
capacitor unit has a first end connected to the third switch module and a second end connected to a second connection point
of the first switch module without connecting any other flying capacitor unit, wherein one or more of the first switching
units are inserted between the first and second connection points of the first switch module, so that the first connection
point is isolated from the second connection point when the one or more of the first switching units are turned off.

US Pat. No. 9,781,821

THERMOELECTRIC COOLING MODULE

DELTA ELECTRONICS, INC., ...

1. A thermoelectric cooling module, comprising:
a first circuit board, having a plurality of first circuit regions, and each first circuit region having a plurality of first
penetrating holes, and each first penetrating hole penetrating through the first circuit board;

a second circuit board, stacked on the first circuit board, and the second circuit board having a plurality of second circuit
regions, and each second circuit region having a plurality of second penetrating holes, and each second penetrating hole penetrating
through the second circuit board;

a plurality of first conducting members, passed and fixed to the first penetrating holes respectively;
a plurality of second conducting members, passed and fixed to the second penetrating holes respectively; and
a plurality of TED chips, clamped between the first circuit board and the second circuit board, configured to be corresponsive
to the first circuit regions and the second circuit regions respectively, and the plurality of first conducting members having
an end attached to the TED chip and the plurality of second conducting members having an end attached to the TED chip.

US Pat. No. 9,800,175

FIVE-LEVEL CONVERTING DEVICE

DELTA ELECTRONICS (SHANGH...

1. A five-level converting device, comprising:
an AC terminal;
a bus capacitor module, having a positive terminal, a negative terminal and a neutral terminal;
a first switch module, having a bidirectional switching circuit, wherein the bidirectional switching circuit comprises two
first switching units reversely connected in series, a terminal of one of the two first switching units connects to the neutral
terminal of the bus capacitor module;

a second switch module, having two second switching units, two third switching units, two fourth switching units and two fifth
switching units, wherein the two second switching unit are cascaded to each other, the two third switching units, the two
fourth switching units and the two fifth switching units are cascaded and are connected to the bus capacitor module in parallel,
wherein the two third switching units are connected to the positive terminal of the bus capacitor module, the two fifth switching
units are connected to the negative terminal of the bus capacitor module, the two fourth switching units and the two second
switching units are connected in parallel, wherein a connection point between the two fourth switching units connects to the
AC terminal, a connection point between the two second switching units connects to a terminal of the other first switching
unit of the two first switching units; and

two flying capacitor modules, connected across the first switch module and the second switch module, wherein a connection
point between the two first switching units, and the connection point between the two second switching units are respectively
connected to a connection point between the two third switching units and a connection point between the two fifth switching
units through the two flying capacitor modules.

US Pat. No. 9,735,137

SWITCH CIRCUIT PACKAGE MODULE

DELTA ELECTRONICS (SHANGH...

1. A switch circuit package module, comprising:
at least a semiconductor switch unit comprising:
a first semiconductor switch element comprising a plurality of sub micro-switch elements; and
a second semiconductor switch element comprising a plurality of sub micro-switch elements; and
at least a capacitor unit comprising a plurality of capacitors, wherein the capacitors are arranged in a symmetrical distribution
surrounded the semiconductor switch unit, such that impedances of any two symmetrical commutation loops each of which mainly
consists of one capacitor and two sub micro-switch elements from the first semiconductor switch element and second semiconductor
switch element respectively are close to or the same with each other, wherein each of the first semiconductor switch element
and the second semiconductor switch element has source, drain and gate, the first semiconductor switch element is stacked
with the second semiconductor switch element and electrically connects with the second semiconductor switch element in series,
both of the first semiconductor switch element and the second semiconductor switch element are perpendicular type of semiconductor
switch chip which has source and drain in two different planes, each capacitor is configured with two terminals which are
electrically connected with the source of the first semiconductor switch element and the drain of the second semiconductor
switch element respectively.

US Pat. No. 9,668,384

POWER CONVERSION DEVICE AND METHOD FOR ASSEMBLING THE SAME

Delta Electronics (Shangh...

1. A power conversion device, comprising:
a heat-dissipating base comprising a three-dimensional structure having an accommodation trough, and a potting glue disposed
in the accommodation trough;

a printed wiring board comprising a first connecting portion having a first through hole;
an electronic component disposed between the printed wiring board and the heat-dissipating base and mounted on the heat-dissipating
base, the electronic component comprising a magnetic component at least partially disposed in the accommodation trough, and
electrically connected to the printed wiring board, wherein a gap is defined between the magnetic component and the three-dimensional
structure, and the potting glue is filled in the gap to at least partially cover the magnetic component;

a fixing assembly fixing the magnetic component and the printed wiring board, such that the magnetic component and the printed
wiring board are electrically connected by the fixing assembly; and

a cover covering the magnetic component and the accommodation trough and fixed to the printed wiring board by the fixing assembly;
wherein the magnetic component comprises a second connecting portion disposed between the cover and the first connecting portion,
and the second connecting portion has a second through hole, the fixing assembly comprises a first fixing member and a second
fixing member corresponding to each other, the second fixing member is disposed on the cover; and the first fixing member
passes the first through hole and the second through hole and is fixed to the second fixing member, such that the second connecting
portion is electrically connected to the first connecting portion.

US Pat. No. 9,116,422

DISPLAY APPARATUS FOR DISPLAYING MULTIPLE IMAGES OF VIEWING ANGLES

DELTA ELECTRONICS, INC., ...

1. A display apparatus for displaying multiple images of viewing angles, comprising:
a display screen; and
a projector, having:
at least one light source module, generating a light beam, the at least one light source module comprises a plurality of light
source modules for generating the light beam sequentially;

an optical component module, dividing the light beam into a first portion light and a second portion light;
a first light modulator, receiving the first portion light and transforming the first portion light into a first view angle
image;

a second light modulator, receiving the second portion light and transforming the second portion light into a second view
angle image;

a projection lens, projecting the first view angle image and the second view angle image to the display screen simultaneously,
and

a light combining component, receiving and providing the first view angle image and the second view angle image to the projection
lens;

wherein the light combining component is a total internal reflection cube, and the display screen images the first view angle
image and the second view angle image to a first viewing zone and second viewing zone by means of the first portion light
and the second portion light respectively.

US Pat. No. 9,877,408

PACKAGE ASSEMBLY

1. A package assembly, comprising:
a first heat dissipating module;
a housing frame fixed on the first heat dissipating module, and comprising a top part, a bottom part, plural frame plates
and a hollow part, wherein the hollow part has a first open end and a second open end, wherein the first open end is located
beside the bottom part, the second open end is located beside the top part, and the top part has at least one opening;

a power module disposed within the hollow part of the housing frame, and covering the first open end of the hollow part, wherein
the power module comprises a first surface, a second surface and at least one pin, the first surface and the second surface
are opposed to each other, the first surface has a periphery region and a middle region, the second surface of the power module
is attached on the first heat dissipating module, and the at least one pin is disposed on the periphery region of the first
surface of the power module, wherein the at least one pin is penetrated through the corresponding opening and partially exposed
outside the top part of the housing frame; and

a second heat dissipating module disposed within the hollow part of the housing frame and attached on the middle region of
the first surface of the power module, wherein the second heat dissipating module is a replaceable cold plate or a replaceable
water-cooled heat sink.

US Pat. No. 9,284,985

OIL SEAL BEARING AND FAN USING SAME

DELTA ELECTRONICS, INC., ...

1. An oil seal bearing of a fan, comprising
a body for supporting a shaft of the fan; and
a protruded portion disposed on the body and having a first slope, wherein the first slope is disposed corresponding to an
inner top surface of a hub of the fan,

wherein an oil storage space is formed between the first slope, the shaft and the inner top surface for storing a lubricant,
and a first angle is formed by the extension of the first slope and the inner top surface, such that the lubricant is retained
between the first slope and the inner top surface.

US Pat. No. 9,057,881

ILLUMINATION SYSTEM FOR A PROJECTION APPARATUS AND PROJECTION APPARATUS

DELTA ELECTRONICS, INC., ...

1. An illumination system for a projection apparatus, comprising:
at least one light source for generating a light;
a curved reflecting component having a breakthrough groove;
a phosphor color wheel being disposed in the breakthrough groove, wherein after the light penetrates the phosphor color wheel
in a first time sequence, a first light is reflected from the curved reflecting component, and after the light is reflected
from the phosphor color wheel in a second time sequence, a second light is reflected from the curved reflecting component;

a polarizer for splitting the first light into a first beam having a first polarization direction and a second beam having
a second polarization direction in the first time sequence, and splitting the second light into a third beam having the first
polarization direction and a fourth beam having the second polarization direction in the second time sequence; and

a half wave retarder having a first time sequence portion and a second time sequence portion, and being disposed at a side
of the polarizer;

wherein after the first beam and the second beam pass through the first time sequence portion of the half wave retarder in
the first time sequence, the first beam and the second beam are transformed into a first polarization light having the first
polarization direction, and after the third beam and the fourth beam pass through the second time sequence portion of the
half wave retarder in the second time sequence, the third beam and the fourth beam are transformed into a second polarization
light having the second polarization direction.

US Pat. No. 9,268,077

PROJECTION DEVICE

DELTA ELECTRONICS, INC., ...

1. A projection device, comprising:
a light source for providing a light beam;
a galvano-mirror configured to deflect the light beam to different directions in sequence;
a polarizing selector configured to selectively convert the polarization state of the light beam;
an optical module having an entrance and an exit, wherein the light beam passing through the polarizing selector enters the
optical module from the entrance, and the optical module guides the light beam to the exit, the optical module comprises:

a polarization beam splitter having the entrance and the exit, wherein the polarization beam splitter guides the light beam
that entering the entrance to different optical paths according to the polarization state of the light beam;

a reflector;
a first wavelength retarder disposed between the polarization beam splitter and the reflector;
a right-angled triangular prism having a hypotenuse surface and two leg surfaces opposite to each other, wherein the hypotenuse
surface of the right-angled triangular prism is disposed facing the polarization beam splitter; and

a second wavelength retarder disposed on one of the leg surfaces of the right-angled triangular prism;
a light modulator configured to modulate the light beam passing through the exit of the optical module into a plurality of
images in sequence;

a lens; and
a prism group configured to guide the light beam passing through the exit of the optical module to the light modulator, and
guide the images to the lens.

US Pat. No. 9,159,699

INTERCONNECTION STRUCTURE HAVING A VIA STRUCTURE

DELTA ELECTRONICS, INC., ...

1. An interconnection structure comprising:
a semiconductor substrate having at least one electric device formed adjacent to a first side of the semiconductor substrate
and a via hole formed therethrough, the via hole having a first opening adjacent to the first side of the semiconductor substrate
and a second opening adjacent to a second side of the semiconductor substrate opposite to the first side;

a via structure disposed in the via hole without exceeding the second opening; and
a first pad disposed on the second side of the semiconductor substrate and covering the via structure, the first pad comprising
a protrusion portion extending into the via hole;

wherein the first pad is adjoined to the via structure and electrically connects with the at least one electric device.

US Pat. No. 9,719,802

TRANSMITTER AND MONITORING SYSTEM USING THE SAME

Delta Electronics (Shangh...

1. A transmitter, comprising:
a multi-to-one multiplexing switch configured to receive a plurality of sensor signals of a plurality of channels through
a plurality of input terminals, select one sensor signal from the plurality of sensor signals, and output the selected sensor
signal through a output terminal;

a first variable gain amplifier configured to receive the selected sensor signal, amplify the selected sensor signal with
a gain within a first gain range, and output the amplified sensor signal;

a control parameter input terminal configured to receive an input control parameter from outside of the transmitter;
an operating and switching selector configured to perform operations according to the input control parameter, so as to control
the multi-to-one multiplexing switch to select the one sensor signal and control the gain of the first variable gain amplifier;

a plurality of second variable gain amplifiers configured to be placed at a preceding stage of the multi-to-one multiplexing
switch for respectively receiving the plurality of sensor signals, be controlled by the operating and switching selector to
pre-amplify the plurality of sensor signals with gains within a second gain range, and output the plurality of pre-amplified
sensor signals to the plurality of input terminals of the multi-to-one multiplexing switch; and

a plurality of analog switches configured to be placed at a preceding stage of the plurality of second variable gain amplifiers
for respectively receiving the plurality of sensor signals, and be controlled by the operating and switching selector to transfer
the plurality of sensor signals to the plurality of input terminals of the multi-to-one multiplexing switch, or to the plurality
of second variable gain amplifiers.

US Pat. No. 9,270,188

DC-DC CONVERTER AND SWITCHING METHOD FOR THE SAME

DELTA ELECTRONICS, INC., ...

1. A direct current to direct current (DC-DC) converter, comprising:
a first bridge, comprising:
a first switch, having a first end and a second end; and
a second switch, having a first end and a second end, wherein the first end of the second switch is in series connection with
the second end of the first switch; and

a second bridge, in parallel connection with the first bridge, comprising:
a third switch, having a first end and a second end, wherein the first end of the third switch is electrically connected to
the first end of the first switch; and

a fourth switch, having a first end and a second end, wherein the first end of the fourth switch is in series connection with
the second end of the third switch, and the second end of the fourth switch is electrically connected to the second end of
the second switch,

wherein the DC-DC converter is operated in a first mode or a second mode, and the DC-DC converter switches between the first
mode and the second mode based on a duty ratio of the DC-DC converter,

wherein a turn-on period of the first switch and a turn-on period of the fourth switch have a first overlapping time T1, and
a turn-on period of the second switch and a turn-on period of the third switch have a second overlapping time T2, wherein
the duty ratio of the DC-DC converter is (T1+T2)/Ts, where Ts is a period between the turn-on time of the first switch and
the turn-off time of the second switch.

US Pat. No. 9,545,027

CLIP AND ELECTRONIC DEVICE USING SAME

DELTA ELECTRONICS, INC., ...

1. An electronic device detachably mounted on a DIN rail, the DIN rail comprising a first protruding edge and a second protruding
edge, the electronic device comprising:
a main body; and
two clips movably disposed on the main body and located at corresponding locations of the main body, wherein each of the two
clips comprises:

a base having a notch; and
an extension part connected with and extended from the base, and comprising a double-bevel bulge and an elastic extension
arm, wherein the elastic extension arm is located beside the double-bevel bulge and extended outwardly, and a free end of
the elastic extension arm has an engaging part;

wherein the engaging part of the elastic extension arm of one of the two clips is contacted with and movable along the double-bevel
bulge of the other one of the two clips, so that the notches of the bases of the two clips are engaged with or disengaged
from the first protruding edge and the second protruding edge of the DIN rail, respectively.

US Pat. No. 9,287,765

POWER SYSTEM, POWER MODULE THEREIN AND METHOD FOR FABRICATING POWER MODULE

DELTA ELECTRONICS, INC., ...

1. A power module, comprising:
a bridge circuit, comprising:
a first bridge arm having a first terminal, a second terminal and a third terminal, wherein the first bridge arm comprises
a first semiconductor device and a second semiconductor device connected in series or in cascade with each other, and the
first semiconductor device and the second semiconductor device are electrically connected to the third terminal of the first
bridge arm; and

a second bridge arm having a first terminal, a second terminal and a third terminal, wherein the second bridge arm comprises
a third semiconductor device and a fourth semiconductor device connected in series or in cascade with each other, and the
third semiconductor device and the fourth semiconductor device are electrically connected to the third terminal of the second
bridge arm; and

at least one capacitance bridge arm connected in parallel with the first bridge arm and the second bridge arm, wherein the
capacitance bridge arm comprises a first capacitor, and the first capacitor is connected in parallel with the first bridge
arm and the second bridge arm and is disposed at an intermediate circuit position relative to the first bridge arm and the
second bridge arm, and the distance between the first capacitor and the second semiconductor device is substantially the same
as the distance between the first capacitor and the fourth semiconductor device;

wherein the first bridge arm and the second bridge arm are connected in parallel with each other, and circuit positions of
the first bridge arm and the second bridge arm are substantially symmetric with each other, so as to reduce voltage spikes
or reduce the difference of the voltage spike generated during operations of the first, second, third and fourth semiconductor
devices.

US Pat. No. 9,640,672

DIODE DEVICE AND METHOD FOR MANUFACTURING THE SAME

National Central Universi...

1. A diode device, comprising:
a III-N (a nitride of a Group IIIA element) compound layer comprising a channel region therein;
a cathode region disposed overlying the III-N compound layer;
a first anode region disposed overlying the III-N compound layer and extending into the III-N compound layer, wherein a bottom
of the first anode region is disposed underlying the channel region; and

a second anode region disposed overlying the III-N compound layer between the cathode region and the first anode region and
extending into the III-N compound layer, wherein the second anode region comprises a high-energy barrier region adjacent to
a sidewall of the first anode region.

US Pat. No. 9,282,669

POWER ELECTRONIC DEVICE AND AN ALIGNMENT DEVICE FOR THE POWER MODULE

DELTA ELECTRONICS, INC., ...

1. An alignment device for a power module of a power electronic device, for aligning the power module while the power module
being plugging to or from a rear mounting part of a cabinet of the power electronic device, wherein the rear mounting part
is disposed at an inner side of a back plate of the cabinet, the alignment device comprises
a first connector disposed on the power module,
guide rail units disposed on inner sides of a left side plate and a right side plate of the cabinet,
a second connector disposed on the rear mounting part, and
a guide device for limiting an offset of the power module moving along the guide rail unit,
wherein a movement of the power module toward the rear mounting part along the guide rail unit causes the first connector
to connect to the second connector, such that the first connector is electrically connected to the second connector,

wherein the guide device comprises a guide part and an alignment part, and one end of the guide part away from the alignment
part is a receiving end,

wherein the receiving end defines a first offset of the power module, the alignment part defines a second offset of the power
module, the guide rail unit defines a third offset of the power module, the connection between the first connector and the
second connector defines a fourth offset of the power module;

wherein the first offset is equal to or greater than the third offset, the fourth offset is equal to or greater than the second
offset.

US Pat. No. 9,263,960

POWER CONVERTERS FOR WIDE INPUT OR OUTPUT VOLTAGE RANGE AND CONTROL METHODS THEREOF

Delta Electronics, Inc., ...

1. A power converter that receives a power source to power at least one load comprising:
first and second pairs of serially-connected controllable switching devices coupled across the power source; and
a controller that turns on and off the serially-connected controllable switching devices, the controller being configured
to operate in first and second modulation modes, wherein in the first modulation mode, the serially-connected controllable
switching devices in the first and second pairs are each operated at a substantially same duty ratio, and wherein, in the
second modulation mode, one of the serially-connected controllable switching devices in the second pair is turned continuously
on and the other one of the serially-connected controllable switching devices in the second pair is turned continuously off.

US Pat. No. 9,178,516

VOLTAGE-LEVEL SHIFT APPARATUS AND METHOD OF OPERATING THE SAME

DELTA ELECTRONICS, INC., ...

1. A voltage-level shift apparatus comprising:
a first level shift unit configured to receive a reference voltage and a power voltage to output a level-shifting voltage;
wherein the level-shifting voltage is equal to a sum of the reference voltage and the power voltage;

a second level shift unit connected to the first level shift unit and configured to receive the level-shifting voltage;
a charging unit configured to receive a control voltage and the level-shifting voltage to provide a required voltage for a
charging operation of the charging unit to output an output voltage; and

a discharging unit connected to the charging unit and configured to receive the control voltage and the reference voltage;
wherein the charging unit is charged by the level-shifting voltage and the level-shifting voltage is the output voltage outputted
from the charging unit when the charging unit is turned on and the discharging unit is turned off by the control voltage;
the discharging unit is discharged from the output voltage when the charging unit is turned off and the discharging unit is
turned on by the control voltage.

US Pat. No. 9,122,063

VIRTUAL IMAGE DISPLAYING SYSTEM

DELTA ELECTRONICS, INC., ...

1. A virtual image displaying system, comprising:
a projector, including a main body and a projection lens which is connected to the main body, wherein the main body is used
to output a light beam by the projection lens;

an optical relaying structure, facing the projection lens and disposed under the projection lens;
a reflective mirror, being inclined relative to the optical relaying structure and disposed above the optical relaying structure;
and

a slit array, being inclined relative to the reflective mirror and disposed in front of the reflective mirror, wherein the
slit array has a plurality of slits;

wherein, the projection lens is disposed in an interval between the reflective mirror and the slit array.

US Pat. No. 9,913,380

EMBEDDED PACKAGE STRUCTURE

1. An embedded package structure, comprising:
an insulation substrate having at least one first conductive via and at least one second conductive via;
a first conductive layer formed on a top surface of the insulation substrate, wherein the first conductive layer is in contact
with the at least first conductive via;

a second conductive layer formed on a bottom surface of the insulation substrate, wherein the second conductive layer is in
contact with the at least second conductive via;

an electronic component embedded within the insulation substrate, and comprising plural first conducting terminals, wherein
the plural first conducting terminals are electrically connected with the first conductive layer and the second conductive
layer through the at least one first conductive via and the at least one second conductive via, respectively;

a first insulation material layer formed on an outer surface of the first conductive layer and a part of the top surface of
the insulation substrate;

a second insulation material layer formed on an outer surface of the second conductive layer and a part of the bottom surface
of the insulation substrate;

a passive component located near a first side of the electronic component and separated from the electronic component, wherein
the passive component is at least partially embedded within the insulation substrate, wherein the passive component further
comprises at least one second conducting terminal, and the passive component is located beside the electronic component along
a horizontal direction, wherein an outer surface of the passive component is at the same level with a top surface of the first
insulation material layer;

an opening, wherein the opening is located beside the electronic component, and the opening runs through the first insulation
material layer, the second insulation material layer and the insulation substrate, wherein at least a part of the passive
component is accommodated within the opening, wherein the opening is larger than the passive component, so that a gap is formed
between the passive component and an inner surface of the opening;

a fixing structure formed on the top surface of the first insulation material layer and the outer surface of the passive component,
and filled in the gap between the passive component and the inner surface of the opening;

a third insulation material layer formed on a top surface of the fixing structure;
a magnetic element embedded within the third insulation material layer and disposed on the top surface of the fixing structure;
and

a third conductive layer formed on a top surface of the third insulation material layer, wherein a part of the top surface
of the third insulation material layer is exposed through the third conductive layer.

US Pat. No. 9,693,412

DIMMING DRIVER CIRCUIT AND CONTROL METHOD THEREOF

DELTA ELECTRONICS (SHANGH...

1. A dimming driver circuit for adjusting brightness of a light emitting diode, the dimming driver circuit comprising:
a power converting unit comprising input terminals for receiving an input voltage, output terminals for outputting an output
voltage and at least one first switch, wherein the power converting unit converts the input voltage into the output voltage
according to an operation of the at least one first switch;

an input voltage detection unit electrically connected with the input terminals for detecting the input voltage and generating
a first detecting signal according to a detecting result of the input voltage detection unit;

an output voltage detection unit electrically connected with the output terminals for detecting the output voltage and generating
a second detecting signal according to a detecting result of the output voltage detection unit;

a driving unit electrically connected with the at least one first switch for driving the at least one first switch according
to a control signal; and

a control unit electrically connected with the driving unit, the input voltage detection unit and the output voltage detection
unit, wherein the control unit calculates an on-time period of the at least one first switch in an operation cycle according
to the first detecting signal, the second detecting signal and a dimming signal, and the control unit generates the control
signal to the driving unit according to the on-time period;

wherein the control unit comprises:
a dimming signal processor configured for receiving the dimming signal and generating a reference current according to the
dimming signal;

a storage unit electrically connected with the dimming signal processor for storing the reference current;
a computing unit electrically connected with the storage unit, the input voltage detection unit and the output voltage detection
unit, wherein the computing unit calculates the on-time period of the at least one first switch according to the reference
current, the first detecting signal and the second detecting signal, and then outputs a calculating result; and

a pulse controller electrically connected with the computing unit, wherein the computing unit receives the calculating result
and generates the control signal according to the calculating result.

US Pat. No. 9,261,703

MULTI-VIEW AUTOSTEREOSCOPIC DISPLAY

DELTA ELECTRONICS, INC., ...

1. A multi-view autostereoscopic display, comprising:
a pair of lenticular arrays; and
a projection device array including a plurality of projectors, each of the projectors comprising a light source array which
consists of a plurality of light sources, the light sources generating light beams for being projected towards the pair of
lenticular arrays via the projectors respectively, and subsequently towards a split visual field via the pair of lenticular
arrays;
wherein
the pair of lenticular arrays is disposed between the projection device array and the split visual field, and the light beam
generated from each of the light sources is projected to each position on the split visual field;

a quantity of the plurality of projectors is N, a quantity of the light sources in each of the projectors is M, and the plurality
of projectors is arranged along a horizontal direction;

each of the projectors comprises an exit pupil, the exit pupil having a width in the horizontal direction; and
when N is greater than two, an interval between adjacent exit pupils is (13-2N) times the width of the exit pupil.

US Pat. No. 9,236,438

SEMICONDUCTOR DEVICE

DELTA ELECTRONICS, INC., ...

1. A semiconductor device, comprising:
a substrate;
an active layer, disposed on the substrate;
a protective layer, disposed on the active layer, having a plurality of first openings, a plurality of second openings, and
a plurality of third openings, wherein each of the first openings is a polygon, and the polygon is at least pentagonal, each
of the second openings is around one of the first openings, an edge of each of the second openings facing the first opening
therein has a shape corresponding to that of the first opening, and the third openings are located between the second openings;

a plurality of drain electrodes respectively located in the first openings;
a gate electrode comprising a first portion and a second portion connected to the first portion, wherein the first portion
is located in the second openings, and the second portion is disposed on the first portion and the protective layer; and

a plurality of source electrodes respectively located in the third openings.

US Pat. No. 9,229,302

PROJECTOR HAVING HEAT DISSIPATION ELEMENT DISPOSED ON A CASE WITH OPTICAL ELEMENTS THEREIN

DELTA ELECTRONICS, INC., ...

1. A heat dissipation assembly within a projection apparatus, the projection apparatus comprising a light source and a plurality
of optical elements, wherein the light source generates a light beam, the plurality of optical elements transmit the light
beam, and the heat dissipation assembly comprises:
a case for receiving the optical elements;
a heat dissipation element, being disposed on a surface of the case, the heat dissipation element comprising at least one
first cooling fin and at least one second cooling fin;

a first fan, being disposed out of the case; and
a temperature controlling unit, electrically connecting to the first fan and comprising at least one temperature sensor for
sensing a temperature around the at least one temperature sensor, and the temperature controlling unit enabling the first
fan to generate an air flow in response to the temperature;

wherein the surface of the case comprises an inner surface and an outer surface, at least one of the plurality of optical
elements abuts against the inner surface, and heat generated during transmission of the light beam is accumulated in the at
least one of the optical elements and then is dissipated through the heat dissipation element by the air flow generated by
the first fan, wherein the at least one first cooling fins is disposed on the outer surfaces of the case, and the at least
one second cooling fin and the at least one temperature sensor are disposed on the inner surface of the case.

US Pat. No. 9,182,446

RELAY DETECTION APPARATUS AND METHOD OF OPERATING THE SAME

DELTA ELECTRONICS, INC., ...

1. A relay detection apparatus operated in a single-phase AC power source, comprising:
first relay, the first relay comprising:
an input contact;
an output normally-open contact; and
an output normally-close contact, wherein the output normally-open contact forms a normally-open path with the input contact,
and the output normally-close contact forms a normally-close contact with the input contact;

a voltage detection module, comprising:
a first voltage detection unit configured to receive a voltage at the input contact and produce a first output voltage; and
a second voltage detection unit configured to receive a voltage at the output normally-close contact and produce a second
output voltage; and

a voltage comparison unit configured to receive the first output voltage and the second output voltage and compare the first
output voltage and the second output voltage so that normal and abnormal contact statuses of the input contact, the output
normally-open contact, and the output normally-close contact of the first relay are detected out;

wherein the first relay is connected to a line path of the single-phase AC power source; the first voltage detection unit
of the voltage detection module is configured to receive the voltage at the input contact of the relay to be a first input
detection voltage and receive a voltage of a ground path of the single-phase AC power source to be a second input detection
voltage, and produce the first output voltage; the second voltage detection unit of the voltage detection module is configured
to receive the voltage at the output normally-close contact of the relay to be a first output detection voltage and receive
a voltage of the ground path of the single-phase AC power source to be a second output detection voltage, and produce the
second output voltage.

US Pat. No. 10,064,309

SHELF THERMOSTAT DEVICE AND THERMOSTAT SYSTEM

DELTA ELECTRONICS, INC., ...

1. A shelf thermostat device applied with at least one electronic device, comprising:a fixing bracket, wherein the electronic device is detachably disposed at the fixing bracket;
a heat exchanger detachably disposed at the fixing bracket and layer arranged in a row with the electronic device, the heat exchanger has a heat exchanging core, the heat exchanging core has a first side and a second side opposite to the first side, and a plurality of internal circulating channels and a plurality of external circulating channels, the internal circulating channels and the external circulating channels are disposed staggered and isolated with each other,
wherein an internal air flows between the internal circulating channels and the electronic device, and an external air flows to the second side of the heat exchanging core from the first side of the heat exchanging core through the external circulating channels.

US Pat. No. 9,999,145

POWER MODULE HAVING PACKAGING STRUCTURE

DELTA ELECTRONICS, INC., ...

1. A power module, having a packaging structure, comprising:a substrate having a first conductive area, a second conductive area and a third conductive area, and a first fixing area being disposed between the first conductive area and the second conductive area, the first fixing area being electrically connected to the first conductive area, and a second fixing area being disposed between the second conductive area and the third conductive area, the second fixing area being electrically connected to the second conductive area, the first conductive area, the second conductive area, the third conductive area, the first fixing area, and the second fixing area being arranged parallel to each other;
a first terminal being a current input end electrically connected to the first conductive area;
a second terminal being an intermediate end electrically connected to the second conductive area;
a third terminal being a current output end electrically connected to the third conductive area;
a first switch set being electrically connected to the first fixing area and the second conductive area; and
a second switch set being electrically connected to the second fixing area and the third conductive area,
wherein
a current flows from the current input end, through the first switch set and then to the intermediate end along a first current path; or from the intermediate end, through the second switch set and then to the current output end along a second current path, and
the first current path and the second current path are straight-line paths with a same direction.

US Pat. No. 9,268,147

AUTOSTEREOSCOPIC DISPLAY DEVICE AND AUTOSTEREOSCOPIC DISPLAY METHOD USING THE SAME

DELTA ELECTRONICS, INC., ...

1. An autostereoscopic display method, comprising:
providing a plurality of projectors, each of the projectors being configured for providing a lamp image unit, each of the
lamp image units having a plurality of lamp images actuated in sequence, the lamp images respectively projecting to different
directions to form a projection angle therebetween; and

projecting the lamp image units onto a screen, comprising:
projecting the lamp image units to a first lens array of the screen for respectively guiding the lamp image units to an image
plane of the screen, such that the lamp image units are adjacent to each other and connected end to end on the image plane;
and

guiding at least two adjacent of the lamp image units to the same second lenticular lens of a second lens array of the screen
for enlarging and combining the projection angles of the at least two lamp image units and projecting the at least two lamp
image units to an observing surface.

US Pat. No. 9,209,164

INTERCONNECTION STRUCTURE OF PACKAGE STRUCTURE AND METHOD OF FORMING THE SAME

Delta Electronics, Inc., ...

1. A package structure comprising:
a first semiconductor device comprising a first semiconductor substrate and a first electronic device, the first semiconductor
device having a first side and a second side opposite to the first side, wherein the first electronic device is disposed on
the first side, and wherein the first semiconductor device has a via-hole formed completely through the first semiconductor
device, wherein the via-hole has a first opening adjacent to the first side;

an interconnection structure disposed in the first semiconductor device, wherein the interconnection structure comprises:
a via structure disposed in the via-hole without exceeding the first opening;
a first pad disposed on the first side of the first semiconductor device and covering the via-hole, wherein the first pad
is adjoined to the via structure and is electrically connected to the first electronic device, and the first pad and the first
electronic device are disposed on the same level of the first semiconductor device; and

a second semiconductor device vertically integrated with the first semiconductor device, wherein the second semiconductor
device comprises a second electronic device electrically connected with the first electronic device.

US Pat. No. 10,064,286

THIN FAN, ELECTRONIC SYSTEM AND MANUFACTURING METHOD OF THIN FAN

DELTA ELECTRONICS, INC., ...

1. A manufacturing method of a structure for a thin fan, comprising the steps in sequence of:providing a plastic material containing a plurality of metal particles;
forming a housing from the plastic material;
removing a part surface of the housing and forming a layout area and an extended circuit on the housing, wherein one terminal of the extended circuit connects to the layout area;
disposing a first signal connecting structure on the housing, wherein the first signal connecting structure connects to an additional terminal of the extended circuit; and
disposing a metal layer on the layout area and the extended circuit.

US Pat. No. 9,329,470

DISPLAY APPARATUS FOR DISPLAYING MULTIPLE VIEW ANGLE IMAGES

DELTA ELECTRONICS, INC., ...

1. A display apparatus for displaying multiple view angle images, comprising:
a display screen, comprising two back-to back lenticular lens sheets, a diffuser layer and two Fresnel plates, in which the
diffuser layer is disposed between the two back-to back lenticular sheets which are sandwiched between the two Fresnel plates;
and

a plurality of projectors, each of the projectors comprising:
three light source modules, each of the light source modules comprising:
a first light emitting diode (LED) light source, providing a first light beam according to a first time sequence and a second
LED light source, being adjacent to the first LED light source and providing a second light beam according to a second time
sequence;

a color combining element, combining the first light beam and the second light beam;
a spatial light modulator, transforming the first light beam and the second light beam into a first view angle image and a
second view angle image respectively after the color combining element combining the first light beam and the second light
beam; and

a lens, projecting the first and second view angle images to the display screen;
wherein each of the three light source modules and the spatial light modulator is disposed corresponding to each side of the
color combining element,

wherein the three light source modules include two or more sets of RGB light sources, each of the sets of RGB light sources
is to emit a red light, a green color light and blue light to the spatial light modulator to create one of the first view
angle image and the second view angle image, the first view angle image and the second view angle image projected from each
of the projectors are guided to a first sub-viewing zone and a second sub-viewing zone of a respective viewing zone by the
display screen respectively, and the sub-viewing zones imaged by each of the projectors are adjacent to each other along a
horizontal axis sequentially.

US Pat. No. 9,122,068

POLARIZATION CONVERTING ELEMENT GROUP FOR PROJECTION APPARATUS AND PROJECTION APPARATUS

DELTA ELECTRONICS, INC., ...

1. A polarization converting element group for a projection apparatus, comprising:
a polarization beam splitter, having a plurality of polarization plated films, wherein each of the polarization plated films
includes an angle with a surface of the polarization beam splitter to divide a light beam into a first polarized light beam
with a first polarization direction and a second polarized light beam with a second polarization direction; and

a plurality of half wave plates, disposed next to the polarization beam splitter and moving in a reciprocating motion with
respect to the polarization beam splitter;

wherein at a first time point, each of the half wave plates moves to a first position to face one of the polarization plated
films to allow the second polarized light beam to pass therethrough and turn into the second polarized light beam with the
first polarization direction; and at a second time point, each of the half wave plates moves to a second position to face
another one of the polarization plated films to allow the first polarized light beam to pass therethrough and turn into the
first polarized light beam with the second polarization direction.

US Pat. No. 9,955,610

HEAT DISSIPATION ASSEMBLY

DELTA ELECTRONICS, INC., ...

1. A heat dissipation assembly, comprising:a heat sink comprising a contact surface, an engaging part and a wing part, wherein the engaging part and the wing part are protruded externally from the contact surface of the heat sink, and an accommodation space is defined by the engaging part, the wing part and the contact surface collaboratively, wherein the engaging part has a concave structure, and the concave structure is disposed within the accommodation space;
an electronic component disposed on the contact surface; and
an elastic fastener comprising a first free end, a bent segment and a second free end, wherein the first free end is accommodated within the accommodation space and locked on at least one inner wall of the concave structure, the bent segment is accommodated within the accommodation space and contacted with a first sidewall of the wing part, and the second free end is locked on an external surface of the electronic component, so that the electronic component is attached and fixed on the contact surface of the heat sink;
wherein the heat sink further comprises an indentation structure, wherein the indentation structure is in communication with the accommodation space and concavely formed on the contact surface of the heat sink;
wherein the elastic fastener further comprises an extension part, and the extension part is extended from the first free end, wherein when the first free end is contacted with the at least one inner wall of the concave structure, the extension part is protruded out of the concave structure and inserted into the indentation structure.

US Pat. No. 9,182,558

COMMUNICATION MODULE

DELTA ELECTRONICS, INC., ...

1. A communication module comprising:
a housing in which an electronic module is partially disposed, the housing having a proximal end and a distal end, the distal
end being configured to be inserted into a receptacle of an electronic device for coupling the electronic module to the electronic
device, the housing including at least one external surface that forms a fastening and releasing region, each fastening and
releasing region comprising a first sloped portion that slopes inwardly towards the distal end of the housing and a notch
positioned adjacent to and distal to the first sloped portion, the notch being raised from the first sloped portion;

a slidable mechanism that includes an extension arm for each fastening and releasing region and an actuating member coupled
to each extension arm, each extension arm extending distally from the actuating member and comprising a de-latching part at
a distal end of the extension arm, each extension arm also comprising a tilting part adjacent to and proximal to the de-latching
part, the tilting part having an inner surface on which a second sloped portion is formed and an outer surface that is concave,
the second sloped portion sloping inwardly towards the distal end of the extension arm, the de-latching part being raised
outwardly from the second sloped portion; and

the receptacle into which the housing inserts, the receptacle comprising a latching structure for each fastening and releasing
region, the latching structure extending distally and inwardly from the receptacle;

wherein the slidable mechanism is coupled to the housing such that each extension arm is positioned within the corresponding
fastening and releasing region and, once coupled, the housing is inserted into the receptacle, and wherein, when the housing
is inserted into the receptacle, each extension arm is configured to slide within the corresponding fastening and releasing
region between a distal position and a proximal position, wherein, when in the distal position, the first and second sloped
portions are aligned, the de-latching part is inserted within the notch, and the latching structure of the receptacle is positioned
such that a distal end of the latching structure extends into the concave outer surface of the tilting part thereby locking
the housing within the receptacle, and wherein, when in the proximal position, the second sloped portion is proximally offset
with respect to the first sloped portion thereby causing the extension arm to pivot outwardly, the outward pivoting combined
with the movement of the extension arm to the proximal position causing the distal end of the latching mechanism to slide
out of the concave outer surface and overtop the de-latching part thereby enabling the housing to be removed from the receptacle.

US Pat. No. 9,722,535

METHOD AND DEVICE FOR ARC FAULT DETECTION FOR PHOTOVOLTAIC INVERTER AND PHOTOVOLTAIC INVERTER USING THE SAME

Delta Electronics (Shangh...

1. A method for arc fault detection for a photovoltaic inverter, comprising:
acquiring current signals at a DC side of the photovoltaic inverter;
obtaining frequency spectral characteristics of the current signal according to the current signal;
judging whether the frequency spectral characteristics of the current signal have a frequency spectral characteristic of an
arc; and

if the frequency spectral characteristics of the current signal have a frequency spectral characteristic of an arc,
shutting down the photovoltaic inverter,
acquiring respectively a first input voltage when the photovoltaic inverter is shut down and a second input voltage after
a predetermined time period after the shutdown,

calculating a voltage drop from the first input voltage to the second input voltage, and
judging whether an arc fault occurs according to the voltage drop.

US Pat. No. 9,316,230

THIN FAN, ELECTRONIC SYSTEM AND MANUFACTURING METHOD OF THIN FAN

Delta Electronics, Inc., ...

1. A thin fan, comprising: a housing composed of a plastic material containing a plurality of metal particles, the housing
comprising: a layout area which is an integral part of the housing, wherein a first part of the metal particles is exposed
to the layout area, an extended circuit which is an integral part of the housing, wherein a second part of the metal particles
is exposed to the extended circuit, and a first terminal of the extended circuit connects to the layout area, a first signal
connecting structure, wherein a terminal of the first signal connecting structure connects to a second terminal of the extended
circuit, and a metal layer disposed on the layout area and the extended circuit and binding with the exposed metal particles;
a stator disposed in the housing; and an impeller covered by the housing.

US Pat. No. 9,191,660

STEREOSCOPIC PROJECTION DEVICE AND DISPLAY METHOD THEREOF

DELTA ELECTRONICS, INC., ...

1. A stereoscopic projection device, comprising:
a first light source module, comprising:
a first light source for providing a first light beam;
a second light source for providing a second light beam; and
a first prism module for collecting the first light beam and the second light beam, wherein the first light beam and second
light beam emit at different angles after passing through the first prism module;

a second light source module, comprising:
a third light source for providing a third light beam;
a fourth light source for providing a fourth light beam; and
a second prism module for collecting the third light beam and the fourth light beam, wherein the third light beam and the
fourth light beam emit at different angles after passing through the second prism module;

a dichroic mirror, wherein the first light source module and the second light source module are respectively disposed at different
sides of the dichroic mirror, and the dichroic mirror splits the first light beam, the second light beam, the third light
beam, and the fourth light beam into first portions and second portions, guides the first portions of the first light beam,
the second light beam, the third light beam, and the fourth light beam to a first optical path, and guides the second portions
of the first light beam, the second light beam, the third light beam, and the fourth light beam to a second optical path;

a first optical module disposed on the first optical path for guiding and modulating the first portions of the first light
beam, the second light beam, the third light beam, and the fourth light beam passing along the first optical path to form
a plurality of first image light beams with different images;

a second optical module disposed on the second optical path for guiding and modulating the second portions of the first light
beam, the second light beam, the third light beam, and the fourth light beam passing along the second optical path to form
a plurality of second image light beams with different images; and

a beam-combining prism for guiding the first image light beams and the second image light beams to a lens.

US Pat. No. 9,075,092

METHOD FOR OBTAINING ELECTRIC POWER INFORMATION

DELTA ELECTRONICS, INC., ...

1. A method for obtaining electric power information, which is applied with a power supply, comprising steps of:
coupling the power supply to an AC power source;
detecting a voltage of the AC power source to obtain a first voltage;
detecting a frequency of the AC power source to obtain a first frequency; and
estimating an electric power information of the power supply in accordance with the first voltage and the first frequency;
wherein, the electric power information is an input current outputted from the AC power source to the power supply.

US Pat. No. 10,111,315

ARC SUPPRESSION DEVICE AND ARC SUPPRESSION METHOD

DELTA ELECTRONICS, INC., ...

1. An arc suppression device, comprising:an AC to DC converter, configured to convert an AC voltage to a DC voltage for providing to a plasma chamber;
a switch, coupled between the AC to DC converter and the plasma chamber;
a resistor, coupled in parallel with the switch;
a controller, coupled to the switch and configured to detect a unit-time rate of change (ROC) of a plasma current received by the plasma chamber, wherein when the controller determines that the unit-time ROC of the plasma current is larger than a first unit-time ROC threshold, the controller is configured to control the switch to electrically isolate the AC to DC converter and the plasma chamber to reduce the plasma current to a first current value through the resistor; and
a first inductor-capacitor (LC) circuit configured to filter the DC voltage.

US Pat. No. 10,024,687

TRANSMITTER AND MONITORING SYSTEM USING THE SAME

Delta Electronics (Shangh...

1. A transmitter, comprising:a multi-to-one multiplexing switch configured to receive a plurality of sensor signals of a plurality of channels through a plurality of input terminals, select one sensor signal from the plurality of sensor signals, and output the selected sensor signal through a output terminal;
a first variable gain amplifier configured to receive the selected sensor signal, amplify the selected sensor signal with a gain within a first gain range, and output the amplified sensor signal;
a control parameter input terminal configured to receive an input control parameter from outside of the transmitter;
an operating and switching selector configured to perform operations according to the input control parameter, so as to control the multi-to-one multiplexing switch to select the one sensor signal and control the gain of the first variable gain amplifier; and
a time division multiplexer configured to be placed at a subsequent stage of the first variable gain amplifier, so as to perform time division multiplexing to the amplified sensor signals output from the first variable gain amplifier, and output the time division multiplexed sensor signals.

US Pat. No. 9,331,579

POWER BALANCING METHOD FOR MULTIPLE MODULE POWER SUPPLY USING AVERAGED FEEDBACK

DELTA ELECTRONICS, INC., ...

1. A power supply comprising:
a plurality of power modules, input terminals of the plurality of power modules being electrically connected in series, output
terminals of the plurality of power modules being electrically connected in parallel;

wherein each of the plurality of power modules comprises:
a first converter configured to convert an input voltage into an intermediate voltage; and
a second converter configured to output a DC supply voltage according to the intermediate voltage,
wherein the first converters in the plurality of power modules are configured to be commonly controlled according to the input
voltage, an input current corresponding to the input voltage, and the intermediate voltages in the plurality of power modules,
and the second converters in the plurality of power modules are configured to be commonly controlled according to outputs
of the plurality of power modules;

wherein each of the plurality of power modules further comprises a first average circuit; and
wherein the first average circuits in the plurality of power modules are electrically connected in parallel for averaging
feedback control signals to generate a common signal for a simultaneous control of the second converters, wherein the feedback
control signals are generated in response to the DC supply voltage.

US Pat. No. 9,169,844

CENTRIFUGAL FAN AND IMPELLER THEREOF

DELTA ELECTRONICS, INC., ...

1. A centrifugal fan comprising:
a case having an air inlet;
a hub having a center and disposed within the case; and
a plurality of blades connected to the hub and disposed within the case, all the blades having respective outmost edges, which
collectively define a circle with the center and a radius R, each blade has at least one first concave cutout, which comprises:

a depth of greater than 0.5 millimeters; and
an obtuse angle of less than 170 degrees, the obtuse angle is an angle between an inner edge of the first concave cutout and
an outer edge of the blade,

each blade further comprises at least two second concave cutouts disposed within a region between 0.6R from the center and
0.9R from the center, wherein the two second concave cutouts are disposed at opposite outer edges of each blade, wherein the
first and one of the second concave cutouts are aligned with and exposed by the air inlet of the case, wherein each blade
has an outmost edge that is disposed within a region between from 0.9R from the center and 1R from the center, and the outmost
edge is not exposed by the air inlet of the case and is in an area that is not occupied by the first and second concave cutouts.

US Pat. No. 9,287,801

MICRO INVERTER WITH DC-TO-AC CONVERTER AND SOLAR PHOTOVOLTAIC SYSTEM HAVING THE SAME

DELTA ELECTRONICS, INC., ...

1. A DC-to-AC converter comprising:
a conversion module connected to a solar panel and a power line and configured to receive a command, the power line configured
to output an AC power outputted from the conversion module;

a signal input port configure to receive a sensing signal; wherein the sensing signal is an analog sensing signal;
a microprocessor electrically connected to the conversion module, the signal input port, and the solar panel, and configured
to control the conversion module to receive the command, inquire relevant data of the solar panel according to the command
and produce a solar panel signal, and convert the analog sensing signal received by the signal input port into a digital sensing
signal; and

a transmission module electrically connected to the microprocessor and the power line, and configured to receive the solar
panel signal and packetize the solar panel signal into an energy data package, and receive the digital sensing signal and
packetize the digital sensing signal into a sensing data package; the energy data package and the sensing data package configured
to be outputted through the power line.

US Pat. No. 9,173,266

ILLUMINATION APPARATUS AND METHOD FOR GENERATING WHITE LIGHT

DELTA ELECTRONICS, INC., ...

1. An illumination apparatus comprising:
a first light-emitting device for emitting a light having a first wavelength;
a second light-emitting device for emitting a light having a second wavelength; and
a third light-emitting device for emitting a light having a third wavelength to be selectively mixed with the light having
the first wavelength or the light having the second wavelength to form a white light represented by a chromaticity coordinate
point substantially located on a Black Body Locus on a CIE chromaticity diagram;

wherein a color of the light having the third wavelength is determined by a linear relationship between corresponding coordinate
points which represent the light having the first wavelength and a white light having a first color temperature on the CIE
chromaticity diagram, and by a linear relationship between corresponding coordinate points which represent the light having
the second wavelength and a white light having a second color temperature on the CIE chromaticity diagram.

US Pat. No. 9,943,000

POWER MODULE AND POINT-OF-LOAD (POL) POWER MODULE

Delta Electronics (Shangh...

1. A power module, comprising an inductor and a main board, wherein the inductor is disposed on the main board and includes an upper magnetic core, a printed circuit board (PCB) winding board, pins and a lower magnetic core; the PCB winding board is disposed between the upper magnetic core and the lower magnetic core; first ends of the pins are connected to the PCB winding board; and a second end, opposite to the first end, of at least one pin is extended and exceeds a bottom surface of the lower magnetic core and is connected to the main board, so that a receiving space is formed between the bottom surface of the lower magnetic core and an upper surface of the main board,wherein the lower magnetic core includes a first winding column, a second winding column and a common magnetic column disposed between the first winding column and the second winding column,
wherein the PCB winding board includes a first winding and a second winding; the first winding is disposed on the first winding column to form a first inductor; the second winding is disposed on the second winding column to form a second inductor.

US Pat. No. 9,351,379

INTEGRATED LIGHT-EMITTING DIODE DRIVER CIRCUIT AND METHOD OF OPERATING THE SAME

DELTA ELECTRONICS, INC., ...

1. An integrated light-emitting diode driver circuit, comprising:
a bi-directional power line communication unit comprising a microcontroller, the microcontroller being configured to receive
an AC voltage and a conversion voltage as an operation voltage of the microcontroller, and to generate a voltage signal based
on the AC voltage, the bi-directional powerline communication unit being configured to convert the voltage signal to generate
a modulation signal and to generate a light-dimming control signal based on the modulation signal;

a power conversion module configured to receive the AC voltage and to convert the AC voltage to generate an output voltage;
and

a constant current/constant voltage control unit configured to receive the light-dimming control signal and to generate a
constant light-dimming current or a constant light-dimming voltage,

wherein the integrated light-emitting diode driver circuit is configured to output the constant light-dimming current or the
constant light-dimming voltage and to output the output voltage to drive a light-emitting diode string configured to be driven
by the light-emitting diode driver circuit.

US Pat. No. 9,325,098

POWER CONNECTOR

DELTA ELECTRONICS, INC., ...

1. A power connector, comprising:
an insulating base;
a pair of rotating seats, respectively and pivotally installed to the insulating base;
a pair of terminals, installed with an interval apart and parallel to each other on each respective the rotating seat, and
capable of rotating with respect to the insulating base and selectively to an extended position and a retracted position;
and

a pair of electrodes, installed at the insulating base and configure to be corresponsive to the pair of terminals respectively,
and a pair of grippers being extended from each electrode, such that when the pair of terminals are rotated, the pair of grippers
clamp the terminals to form an electrical connection,

wherein each terminal has a cam formed at an end thereof, and the pair of grippers clamp the cam continuously.

US Pat. No. 9,296,113

DELTA ROBOT AND LINEAR DELTA MECHANISM

DELTA ELECTRONICS, INC., ...

1. A linear delta mechanism, comprising:
a base platform, comprising:
a base structure; having a hole at a center location of the base structure; and
a base stand received in the hole, wherein the base stand has an elongated shape extending from beyond a bottom side of the
base structure to beyond a top side of the base structure;

a movable platform movable with respect to the base platform; and
a plurality of guide sets connected to the base platform, and configured to drive the movable platform, each of the guide
sets comprising:

a linear actuator, wherein the linear actuators of the guide sets are symmetrically fastened on the base stand and are received
in the hole; and

an actuating rod having a first end and a second end to the movable platform, wherein when the first end is driven by the
linear actuator, and the second end is connected to the movable platform.

US Pat. No. 9,490,704

SYSTEM AND METHODS FOR CONTROLLING SECONDARY SIDE SWITCHES IN RESONANT POWER CONVERTERS

DELTA ELECTRONICS, INC., ...

1. A resonant converter receiving an input voltage and providing an output voltage, comprising:
a resonant tank circuit for deriving energy from the input voltage;
a transformer coupled to the resonant tank circuit, wherein the transformer has a primary winding and a secondary winding,
the secondary winding having a first terminal and a second terminal;

a first set of switches configured to transfer energy to the resonant tank circuit, the first set of switches switching at
a frequency responsive to the output voltage;

a second set of switches coupled to the secondary winding of the transformer, the second set of switches configured to transfer
energy from the resonant tank to the output voltage and to provide a full-bridge rectifier; and

a control unit controlling the second set of switches based on a delay time relative to a time of occurrence of an event in
a sensed signal representing a current in the resonant tank circuit and based on at least one of: the input voltage, the output
voltage, and the sensed signal, wherein, during a predetermined period of the delay time, the control unit operates the second
set of switches such that the first and second terminals of the secondary winding are shorted through the second set of switches.

US Pat. No. 9,391,522

RESONANT CONVERTER APPARATUS AND CONTROL METHOD FOR THE SAME

DELTA ELECTRONICS, INC., ...

1. A resonant converter apparatus, comprising:
a first pre-regulator configured for receiving a first input voltage and generating a first output voltage;
a first resonant converter configured for receiving the first output voltage and generating a supply voltage;
a second pre-regulator configured for receiving a second input voltage and generating a second output voltage;
a second resonant converter configured for receiving the second output voltage and generating the supply voltage, wherein
an output of the second resonant converter is electrically connected in parallel with an output of the first resonant converter;
and

a controller configured for receiving a first current difference and a second current difference and controlling the first
pre-regulator and the second pre-regulator according to the first current difference and the second current difference such
that the first resonant converter and the second resonant converter generate identical output currents in accordance with
controlled operations of the first pre-regulator and the second pre-regulator,

wherein the first current difference is a first difference between a first input current of the first pre-regulator and a
reference current, and the second current difference is a second difference between a second input current of the second pre-regulator
and the reference current.

US Pat. No. 9,354,452

LIGHT-FIELD IMMERSIVE DISPLAY AND OPERATION METHOD THEREOF

DELTA ELECTRONICS, INC., ...

1. A light-field immersive display, comprising:
a curved screen;
at least two projectors, wherein each of the projectors has a projected image on the curved screen, and a plurality of boundaries
of the two projected images are edge-blended; and

at least two curved liquid crystal slits, disposed on one side of the curved screen, wherein the curved liquid crystal slits
are disposed respectively corresponding to the projected images.

US Pat. No. 9,231,488

POWER CONVERTER AND METHOD FOR CONTROLLING THE SAME

DELTA ELECTRONICS, INC., ...

1. A power converter, comprising:
a bridge circuit having a first and a second input terminal, and a first and a second output terminal, wherein the bridge
circuit further comprises:

a first bridge arm comprising two capacitor units connected in series at a middle point between the first and the second input
terminals of the bridge circuit;

a second bridge arm comprising a first and a second switch device connected in series at the first output terminal of the
bridge circuit; and

a third bridge arm comprising a third and a fourth switch device connected in series at the second output terminal of the
bridge circuit;

a switch module connected between the middle point and the first output terminal of the bridge circuit;
an isolation stage having a first and a second input terminal, and a first and a second output terminal, wherein the first
input terminal of the isolation stage is connected to the first output terminal of the bridge circuit, and the second input
terminal of the isolation stage is connected to the second output terminal of the bridge circuit;

an output stage having a first and a second output terminal, wherein the first input terminal of the output stage is connected
to the first output terminal of the isolation stage, and the second input terminal of the output stage is connected to the
second output terminal of the isolation stage; and

a resonant tank comprising a capacitor unit and a first inductor unit connected in series between the first output terminal
of the bridge circuit and the isolation stage;

wherein the capacitor unit is directly connected to the first output terminal of the bridge circuit, and the first inductor
unit is directly connected to the isolation stage.

US Pat. No. 9,112,446

DEVICE, METHOD AND SYSTEM FOR CONTROLLING ROTATION SPEED OF MOTOR

Delta Electronics (Donggu...

1. A device for controlling a rotation speed of a motor, comprising:
a reference voltage generating module configured to generate a reference voltage;
a Pulse Width Modulation (PWM) signal converting module configured to convert a PWM signal into a voltage signal corresponding
to a duty cycle of the PWM signal;

a first comparator having a positive terminal connected with the reference voltage generating module and a negative terminal
connected with the PWM signal converting module, and configured to output a first level when a voltage of the voltage signal
converted from the PWM signal is less than or equal to the reference voltage, and to output a second level when the voltage
of the voltage signal converted from the PWM signal is greater than the reference voltage;

a first switching element having a control terminal connected with an output terminal of the first comparator and a first
terminal input with a first signal, and configured to be turned on when receiving the second level output from the output
terminal of the first comparator so as to enable a connection between the first terminal and a second terminal of the first
switching element, and to be turned off when receiving the first level output from the output terminal of the first comparator;

a follower having an input terminal connected with the PWM signal converting module; and
a control signal outputting terminal connected with the second terminal of the first switching element and an output terminal
of the follower, and configured to output the first signal received from the second terminal of the first switching element
or the voltage signal which is converted from the PWM signal and is received from the follower to a motor control circuit;

wherein when the first switching element is turned on, the motor control circuit is input with the first signal which makes
the motor control circuit control the rotation speed of the motor to be zero or a predetermined speed; and when the first
switching element is turned off, the motor control circuit is input with the voltage signal converted from the PWM signal
to make the rotation speed of the motor be determined by the duty cycle of the PWM signal.

US Pat. No. 9,080,817

METHOD FOR MANUFACTURING TWO-PHASE HEAT EXCHANGE DEVICE

DELTA ELECTRONICS, INC., ...

1. A method for manufacturing a two-phase heat exchange device, comprising steps of:
providing a container, wherein the container has an opening and a first wick structure disposed on an inner surface thereof;
adding a predetermined material into the container;
providing a cover, wherein a main body of the two-phase heat exchange device is constructed by joining the cover with the
container, and the cover seals the opening to form a closed space within the main body;

inverting and shaking the main body, such that the predetermined material averagely fall on the inner surface of the cover;
and

forming a second wick structure on the inner surface of the cover, wherein the first and second wick structures form a continuous
structure covering the entire inner surface of the main body.

US Pat. No. 9,059,525

PIN STRUCTURE OF RJ CONNECTOR, RJ CONNECTOR MODULE AND RJ CONNECTOR SYSTEM USING THE SAME

DELTA ELECTRONICS, INC., ...

1. A pin structure of an RJ connector, comprising:
a base; and
eight pins comprising a first pin, a second pin, a third pin, a fourth pin, a fifth pin, a sixth pin, a seventh pin and an
eighth pin, wherein one end of each pin has a contact part, the contact parts are aligned in sequence, the other end of each
pin is bent to form an inserting part, and the inserting parts are embedded in the base;

wherein, a distance between the inserting parts of the third pin and the sixth pin is smaller than a distance between the
contact parts of the third pin and the sixth pin,

wherein the inserting parts of the first pin, the second pin, the fourth pin, the fifth pin, the seventh pin and the eighth
pin are located at a second height the inserting parts of the third pin and the sixth pin are located at a first height, and
the first height is different from the second height.

US Pat. No. 10,104,813

POWER CIRCUIT MODULE

Delta Electronics, Inc., ...

1. A power circuit module, comprising:a pressure plate comprising a protrusion body and a main body;
a frame; and
a substrate bearing a power circuit, the power circuit comprising at least a power switching device;
wherein the frame is disposed between the substrate and the pressure plate, the frame supports the pressure plate, and a substantially closed space is formed by the substrate, the pressure plate and the frame;
when an external force is applied on the pressure plate, the protrusion body press against the substrate and is in insulation contact with the substrate, and the external force is transmitted to the substrate via the protrusion body;
wherein the main body comprises a middle part and a remaining part other than the middle part, the middle part is made from a first material having a first elastic modulus and surrounded by the remaining part, the remaining part is made from a second material having a second elastic modulus;
the protrusion body comprises an end region being in contact with the substrate and a remaining region other than the end region, the end region is made from the first material, the remaining region is made from the second material; and
the second elastic modulus is more than twice the first elastic modulus.

US Pat. No. 10,021,803

POWER SUPPLY

DELTA ELECTRONICS, INC., ...

1. A power supply, comprising:a metal case,
a power conversion module received inside the metal case and spaced apart from the metal case, the power conversion module comprising a circuit board; and
an insulation connecting plate connected to the circuit board and the metal case respectively, the insulation connecting plate being isolated between at least a portion of the circuit board and at least a portion of the metal case,whereinone side of the insulation connecting plate includes a plurality of first insulation columns formed thereon, each one of the first insulation columns includes a first blind hole formed thereon, and the first blind hole extends longitudinally along the first insulation column,
another side of the insulation connecting plate includes a plurality of second insulation columns, each one of the second insulation columns includes a second blind hole formed thereon respectively, and the second blind hole extends longitudinally along the second insulation column, and
the power conversion module is fastened onto the plurality of first blind holes, a plurality of screws are arranged penetrating the metal case from outside of the metal case and screw connected with the second blind holes and the metal case is thereby fastened onto the plurality of second blind holes.

US Pat. No. 9,453,498

METHOD FOR BACKING UP AND RECOVERING BLADE ZERO POINT OF PITCH DRIVE SYSTEM FOR WIND TURBINE AND PITCH DRIVE SYSTEM FOR WIND TURBINE

DELTA ELECTRONICS, INC., ...

1. A method for backing up and recovering a blade zero point of a pitch drive system for a wind turbine, comprising:
when a blade rotates to a mechanical zero position, generating a first zero point positional value with a first position detector;
the first zero point positional value being stored by a driver;
when the blade rotates to the mechanical zero position, generating a second zero point positional value with a second position
detector;

the second zero point positional value being stored by a controller;
when a corresponding back-up command is received, the first zero point positional value stored in the driver is backed up
to the controller; and

when the corresponding back-up command is received, the second zero point positional value stored in the controller is backed
up to the driver.

US Pat. No. 9,360,678

LIGHT MODULATING MODULE AND IMAGE DISPLAY

DELTA ELECTRONICS, INC., ...

1. A light modulating module, adapted to be attached on a display side of a reflective display apparatus, comprising:
a light source portion capable of providing an illumination light beam, wherein the illumination light beam is capable of
being transmitted to the reflective display apparatus, and the reflective display apparatus is adapted to reflect the illumination
light beam to generate an image light beam; and

an image light modulating device disposed above the reflective display apparatus and disposed in a light path of the image
light beam, wherein the image light modulating device is capable of modulating a direction and/or a polarization state of
the image light beam,

wherein the image light beam is emitted to either a left or right eye of a viewer to form an autostereoscopic image perceivable
to the viewer after the image light beam passes through the image light modulating device,

wherein the light source portion comprises a plane light source and is disposed between the image light modulating device
and the reflective display apparatus.

US Pat. No. 9,304,249

LIGHT TUNNEL AND MANUFACTURING METHOD THEREOF

DELTA ELECTRONICS, INC., ...

1. A light tunnel for use in an optical projection system, comprising:
a plurality of reflecting plates, including a top reflecting plate, a bottom reflecting plate, a right reflecting plate and
a left reflecting plate, each said reflecting plate being disposed between and connected to the other two said reflecting
plates, so that a light passage with a hollow structure is defined by said plurality of reflecting plates;

wherein said left reflecting plates has a first surface, a second surface, a third surface and a fourth surface, wherein said
first surface is in an inclined structure, said first surface is obliquely connected to said third surface and said fourth
surface, said second surface is opposite to said first surface and vertically connected to said third surface and said fourth
surface, said third surface is opposite to said fourth surface, one of a vertical connection edge of said second surface and
said third surface is abutted against said bottom reflecting plate, said left reflecting plate is disposed between and obliquely
connected to said top reflecting plate and said bottom reflecting plate for forming said light passage having a non-rectangular
cross section, and said first surface of said left reflecting plate is abutted against said top reflecting plate to form a
junction with no gap between said first surface of said reflecting plate and said top reflecting plate.

US Pat. No. 9,175,866

DUSTPROOF DEVICE FOR HEAT SINK

DELTA ELECTRONICS, INC., ...

1. A dustproof device for a heat sink, the heat sink having an air inlet, the dustproof device comprising:
a first blade set disposed in a lateral side of the air inlet, the first blade set including a plurality of first blades arranged
in parallel and at intervals, each first blade having a first linking portion and a first blocking portion extended from the
first linking portion, the first blocking portion being a free end and bent in a direction toward the heat sink and forming
a first opening with another first linking portion of an adjacent first blade; and

a second blade set disposed between the first blade set and the air inlet, the second blade set including a plurality of second
blades arranged in parallel and at intervals, each second blade having a second linking portion and a second blocking portion
extended from the second linking portion, the second blocking portion being a free end and bent in a direction away from the
heat sink and forming a second opening with another second linking portion of an adjacent second blade,

wherein an extension line of the first blocking portion is located on the second blocking portion.

US Pat. No. 9,154,751

DISPLAY DEVICE FOR THREE-DIMENSIONAL DISPLAY HAVING FIRST AND SECOND COLOR WHEELS

DELTA ELECTRONICS, INC., ...

12. A display, comprising:
a light source for providing a light beam having a light path;
a first color wheel with plural primary-color filtering areas, each of the primary-color filtering areas having a primary-color
passband;

a second color wheel with plural left or right eye filtering areas, each of the primary-color filtering area corresponding
to at least two of the left or right eye filtering areas, each of the left or right eye filtering areas filtering out a portion
of the primary-color passband of the corresponded primary-color filtering area;

an actuator for rotating the first color wheel and the second color wheel;
a controller for controlling the rotations of the first color wheel and the second color wheel, such that the primary-color
filtering areas and the corresponding left or right eye filtering areas are disposed in the light path in sequence when the
first color wheel and the second color wheel rotate, and the primary-color filtering area and the left or right eye filtering
area that are simultaneously in the light path overlap, and thus the light beam passing through the first color wheel and
the second color wheel is filtered to plural left or right eye primary-color light beams with different spectra; and

a light modulator for modulating the left or right primary-color light beams and projecting the modulated left or right primary-color
light beams onto a screen to display an image.