US Pat. No. 10,349,474

LAMP TUBE CAPABLE OF RECTIFYING AND STABILIZING VOLTAGES

Xiamen PVTECH Co., Ltd., ...

1. An LED lamp tube capable of rectifying and stabilizing voltages, wherein the LED lamp tube comprises an LED component in the LED lamp tube, and two ends of the LED lamp tube respectively comprise two conductive pin assemblies, each of the conductive pin assemblies is formed by two pins, the LED lamp tube further comprises a polarity conversion module, a suppressor, and a voltage buck-booster module, the polarity conversion module comprises two voltage conversion devices, the voltage conversion devices are respectively connected to the conductive pin assemblies, wherein a capacitor is electrically connected between each of the voltage conversion devices, the suppressor is electrically connected to the polarity conversion module to absorb a generated surge voltage, the voltage buck-booster module is electrically connected to the suppressor to convert alternating current into direct current;wherein, input ends of the voltage conversion devices are respectively connected to the conductive pin assemblies, a set of capacitors is connected between the input ends of each of the voltage conversion devices to operate a circuit in an electronic rectifier to compensate and stabilize an input voltage.

US Pat. No. 10,113,701

WORKING LIGHT

Xiamen PVTECH Co., Ltd., ...

1. A working light, comprising: a frame and a plurality of LED modules located in the frame, wherein two supporting plates at two ends of the frame are respectively combined with two ratchets, two ends of the LED modules are combined with ratchet plates, the ratchets are respectively assembled to the ratchet plates to control a rotation angle of the LED modules, wherein each of the ratchets is combined with a spring and a pinball, and the pinball is elastically abutted in the corresponding ratchet plate.

US Pat. No. 10,264,649

CONTROL SET FOR ADJUSTING LIGHT SOURCE

Xiamen PVTECH Co., Ltd., ...

1. A control set for adjusting a light source of a lamp, the control set includes a control module electronically connected with the lamp and an adjustable power switch, the adjustable power switch outputs an adjust signal to gradually increase or decrease the brightness of the lamp, the control module comprising:a control chip connected with the lamp and the adjustable power switch, the control chip is configured to control that the brightness of the lamp is gradually increased to a preset brightness and then decreased; and
a storage connected with a timing unit, a fine tuning signal stored in the storage is generated and output to the adjust signal by turning off and turning on the adjustable power switch, the timing unit sets a preset time period in which the fine tuning signal maintains effective, and the fine tuning signal controls the lamp to have a brightness the same as the brightness when the lamp is turned off last time, or the brightness of the lamp is gradually increased to the preset brightness and then decreased.

US Pat. No. 9,625,128

HIGH POWER TRI-PROOF LED LAMP

Xiamen PVTECH Co., Ltd., ...

1. A high power Tri-proof LED lamp, comprising:
a lower PC (Polycarbonate) cover;
an upper aluminum cover having an elongated printed circuit board, a light source, a power supply, an emergency power supply
module and securing panel mounted therein, said securing panel being secured with the power supply and the emergency power
supply module by screws, an upper side of said upper aluminum cover being secured with two back holders by threaded poles;
and

at least one end cap including an inner end cap and an outer end cap; and
an illumination sensor module being mounted on the outer end cap and being able to detect amount of ambient light to control
the light source via the elongated printed circuit board;

wherein:
the upper aluminum cover and the lower PC cover are secured with the inner end cap by four inner end cap screws;
the outer end cap is secured with the inner end cap by multiple outer end cap screws;
between the inner end cap and the outer end cap, a wire connector and a sealing pad are mounted, said wire connector being
connected with a water proof wire joint module, said outer end cap being connected with terminals through the outer end cap
screws.

US Pat. No. 10,161,571

LED TUBE WITH SAFETY DEVICE

Xiamen PVTECH Co., Ltd., ...

1. A LED tube with a safety device, connected with an external power supply, comprising:two conductive needle groups, each of the conductive needle groups includes two needles;
at least a LED light-emitting component configured to be electrically connected with the needles;
a plurality of fuses directly riveted at the conductive needle groups, respectively; and
an electronic rectifier electrically connected with the needles of the both conductive needle groups;
wherein the LED tube is T type tube.

US Pat. No. 10,302,281

DETACHABLE PANEL LIGHT

Xiamen PVTECH Co., Ltd., ...

1. A panel light being detachable, comprising an outer casing, a plurality of light emitting members, and a magnetic member, wherein the outer casing comprises a receiving groove, and the outer casing comprises a detachable covering plate assembled at the receiving groove and a plurality of holding members respectively assembled at two sides of the detachable covering plate, each of the holding members is assembled with a magnetic member, one of two opposite surfaces of each of the magnetic members is attached on an inner surface of the receiving groove, the other surface of each of the magnetic members is attached to the corresponding holding member, each of the holding members has two arms, each end of the two arms is bent to form a hook portion, the light emitting members are assembled in the receiving groove of the outer casing, each of the light emitting members comprises a supporting frame assembled with the holding members, a light source plate on the supporting frame, and a lightshade assembled on the supporting frame to cover the light source plate, the two hook portions of each of the holding members are engaged with two sides of the corresponding supporting frame, wherein the outer casing comprises a fixing frame, wherein the fixing frame is locked on the inner surface of the receiving groove, covered by the detachable covering plate, located in a space between the outer casing and the detachable covering plate, and located between the light emitting members, wherein the fixing frame is located in a valley portion of the detachable covering plate.

US Pat. No. 10,274,146

LED CEILING LAMP

Xiamen PVTECH Co., Ltd., ...

1. A light-emitting diode (LED) ceiling lamp, comprising:an elongated light cover;
an elongated housing including a fastening slot and two side portions connected with the elongated light cover;
a light source plate secured between the elongated light cover and the elongated housing;
a power source seat electronically connected to the light source plate and being secured on the fastening slot; and
two end covers connected with two ends of the elongated light cover and two ends of the elongated housing, respectively, wherein one of the end covers is connected with one end of the elongated light cover and one end of the elongated housing, and the power source seat is located in the end cover connected with the elongated light cover and the elongated housing.

US Pat. No. 10,381,866

LIGHT EMITTING DIODE EMERGENCY LIGHT WITH TRANSPORTATION MODE AND OPERATION METHOD THEREOF

Xiamen PVTECH Co., Ltd., ...

1. A light emitting diode (LED) emergency light with a transportation mode, comprising:an alternating current (AC)-direct current (DC) LED driving circuit;
a light source; and
an emergency module, wherein the AC-DC LED driving circuit is electrically connected to a terminal of the light source, and the emergency module is electrically connected to another terminal of the light source, wherein the emergency module comprises:
a battery;
wherein after the emergency module generates a transportation mode signal, the LED emergency light enters the transportation mode, wherein a current consumption of the LED emergency light is only ?A level during a transportation process, and the emergency module generates and outputs the transportation mode signal according to at least one rising edge waveform formed by a capacitor comprised in the emergency module during a charging process of the capacitor.

US Pat. No. 10,645,784

ELECTRIC LEAKAGE PROTECTION ELECTRONIC RECTIFIER AND LAMP WITH ELECTRIC LEAKAGE PROTECTION ELECTRONIC RECTIFIER

Xiamen PVTECH Co., Ltd., ...

1. An electric leakage protection electronic rectifier comprising:a leakage detecting module connecting with a power supply; and
a driving module comprising a Type A+B driving circuit and being electrically connected with the leakage detecting module, and having a current-limiting control unit being set in the Type A circuit of the driving module to limit the current and being electrically connected with the leakage detecting module;
wherein the current-limiting control unit detects the output current of the power supply, when the current-limiting control unit detecting the output current of the power supply exceeding a reference signal, the current-limiting control unit limits the output current of the power supply.

US Pat. No. 10,616,983

DIMMABLE LAMP

Xiamen PVTECH Co., Ltd., ...

1. A dimmable lamp, which is in combination with a dimmer that outputs a dimming signal with polarity, comprising:a light emitting device for emitting light;
a dimming drive module for controlling the work of the light emitting device electrically connected with the light emitting device;
a polarity conversion unit for selectively converting the polarity of the dimming signal being electrically connected to the dimmer; and
a signal processing unit for processing the dimming signal being connected to the polarity conversion unit and the dimming drive module respectively to control the dimming drive module according to the dimming signal.

US Pat. No. 10,959,301

POLARITY CORRECTION CIRCUIT FOR DIMMER

Xiamen PVTECH Co., Ltd., ...

1. A polarity correction circuit for dimmer, comprising: a control circuit; an adjustment circuit, connected to the control circuit, an working voltage input end, and a dimmer, wherein the adjustment circuit comprises a plurality of switches, and the adjustment circuit receives a dimming signal of the dimmer; and a detection circuit connected to the dimmer and the control circuit, wherein the detection circuit detects the dimming signal to generate a reference voltage, and the detection circuit transmits the reference voltage to the control circuit; wherein the control circuit maintains a switch state of the switches of the adjustment circuit unchanged or adjusts the switch state of the switches of the adjustment circuit according to the reference voltage,wherein the adjustment circuit comprises a first transistor, a second transistor, a third transistor, and a fourth transistor; a first end of the first transistor is connected to the raking voltage input end, a second end of the first transistor is connected to a first dimming signal output end, a third end of the first transistor is connected to the control circuit; a first end of the second transistor is rounded, a second end of the second transistor is connected to the first dimming signal output end, and a third end of the second transistor is connected to the control circuit: a first end of the third transistor is connected to the working voltage in out end, a second end of the third transistor is connected to a second dimming signal output end, a third end of the third transistor is connected to the control circuit; a first end of the fourth transistor is grounded, a second end of the fourth transistor is connected to the second dimming signal output end and a third end of the fourth transistor is connected to the control circuit; the first dimming signal output end and the second dimming signal output end receive and output the dimming signal.

US Pat. No. 11,032,890

DIMMABLE LAMP SWITCH CONTROL DEVICE

Xiamen PVTECH Co., Ltd., ...

1. A dimmable lamp switch control device, comprising:two conductive pin sets being respectively formed at both ends of the lamp and electrically connected to a AC power supply;
a rectifier bridge module being connected to the conductive pin sets to input at least one voltage signal;
a dimming signal identification and control circuit module having an input and an output, being identifying a dimming signal and controlling the dimmable lamp;
a filter circuit module connected to the rectifier bridge module for outputting a smooth DC voltage, the filter circuit module being provided with a circuit guard unit and a backflow prevention steady voltage filter circuit module, the circuit guard unit being connected to the output of the backflow prevention steady voltage filter circuit module;
a power supply circuit module connected to the output of the backflow prevention steady voltage filter circuit module and a input of the dimming signal identification and control circuit module;
a buck-boost constant current module connected to the filter circuit module and stepping down or boosting the filtered DC voltage, and connecting to the dimming signal identification and control circuit module for dimming control; and
an anti-electricity shock detection control circuit module connected between the rectifier bridge module and the filter circuit module, and having a signal control unit, the rectifier bridge module controlling the buck-boost constant current module through the signal control unit of the anti-electricity shock detection control circuit module, the anti-electricity shock detection control circuit module reducing the PWM signal of the buck-boost constant current module based on the output signal of the rectifier bridge module.

US Pat. No. 11,035,560

OPTICAL COMMUNICATION LAMP DEVICE

Xiamen PVTECH Co., Ltd., ...

1. An optical communication lamp device, comprising: an emitting-end driving controller, a power unit, an encoder, and a light emitting element, wherein the light emitting element is electrically connected to the emitting-end driving controller and the power unit; wherein the encoder emits an electrical signal; and the emitting-end driving controller receives the electrical signal emitted from the encoder to control the light emitting element; wherein the power unit is a battery or a chargeable battery; the emitting-end emitter is an optical emitting member; the receiving-end power circuit receiver is an optical receiving member.

US Pat. No. 11,028,974

LED TUBE WITH BUILT-IN DRIVING POWER MODULE

Xiamen PVTECH Co., Ltd., ...

1. An LED tube with built-in driving power module, wherein each of two ends of the LED tube comprises:a conductive component electrically connected to mains supply and comprising a conductive pin assembly and a sleeve member for disposing the conductive pin assembly;
a driving power module being formed by a plurality of circuit boards disposed in the sleeve member and being in series connection; each of the circuit boards comprising a functional operation unit;
wherein the sleeve member has a receiving space for receiving the circuit boards in series connection;
wherein each of the circuit boards comprises at least connection port formed on a top surface of the circuit board and at least one electrical connection member formed on a bottom surface of the circuit board; and
wherein the circuit boards are in an stacking arrangement and are in series connection via the connection ports being connected with the electrical connection members.

US Pat. No. 10,749,303

LAMP DEVICE WITH CHANGEABLE LAMP SOCKET

Xiamen PVTECH Co., Ltd., ...

1. A lamp device with changeable lamp socket, comprising a light tube, a light source plate received in the light tube, and two lamp sockets respectively locked with two ends of the light tube, wherein each of the lamp sockets comprises a first tubular body, a first covering plate, and two conductive plugs; one ends of the two first tubular bodies are respectively fitted over two end portions of the light tube, and each of the first covering plates covers the other end of the corresponding first tubular body; for each of the lamp sockets, the two conductive plugs are electrically connected to the light source plate and protruding out of the corresponding first covering plate; the lamp device further comprises two adapter covers detachably locked on the lamp sockets, respectively; each of the adapter covers comprises a second tubular body, a second covering plate, and a conductive component; one end of the second tubular body of each of the adapter covers is fitted over the corresponding lamp socket; for each of the adapter covers, the second covering plate covers the other end of the second tubular body; each of the second covering plates comprises two protruding posts and an opening; for each of the second covering plates, the two protruding posts are protruding from an inner surface of the second covering plate, the opening is between the protruding posts of the second covering plate, and each of the protruding posts has an insertion hole; for each of the lamp sockets and the corresponding adapter cover, the conductive plugs are inserted into the insertion holes, and the conductive component is electrically connected to the conductive plugs, passes through the opening, and exposed from the second covering plate, so that the lamp device is capable of providing different adapter structures;wherein each of the second covering plates comprises a protruding portion configured on an outer side thereof, and the opening is located in the protruding portion; and
wherein for each of the second covering plates, the insertion holes are in communication with the protruding portion and are located at two sides of the opening.