US Pat. No. 9,807,827

AC LIGHT EMITTING DIODE AND AC LED DRIVE METHODS AND APPARATUS

LYNK LABS, INC., Elgin, ...

15. A lighting system comprising:
at least one LED circuit having at least two LEDs connected together in series and mounted on a reflective substrate;
at least one bridge rectifier;
a driver connected to the least one bridge rectifier, the driver providing AC voltage and current to the at least one bridge
rectifier, and the bridge rectifier providing DC voltage and current to the at least one LED circuit, the driver having an
input of a first AC voltage and a first frequency and an output of a second AC voltage and a second frequency, which the second
AC voltage is a relatively fixed voltage and the second frequency is a relatively higher frequency when connected to the at
least one LED circuit,

the driver being capable of sensing changes to the LED load when connected to the at least one LED circuit, and the driver
being capable of re-adjusting the frequency and/or AC voltage output of the driver to a desired relatively fixed value in
response to changes to the load, wherein the driver, the at least one bridge rectifier, and the at least one LED circuit form
a driven circuit and the driver, the at least one bridge rectifier, and the at least one LED circuit being configured such
that one or more LED circuits can be added to or subtracted from the driven circuit so long as the total wattage output of
the driver is not exceeded:

(a) without significantly affecting a pre-determined desired output range of light from any individual LED;
(b) without the need to: (i) change a value of any discrete component; or, (ii) to add or subtract any discrete components,
of any of the pre-existing driven circuit components which remain after the change.

US Pat. No. 9,247,597

COLOR TEMPERATURE CONTROLLED AND LOW THD LED LIGHTING DEVICES AND SYSTEMS AND METHODS OF DRIVING THE SAME

LYNK LABS, INC., Elgin, ...

1. An LED lighting device comprising:
at least two LED circuits connected in parallel, each of the at least two LED circuits having one or more LEDs, each LED circuit
having a different forward operating voltage than the other LED circuits, and,
being capable of emitting light having one or more of a different color or wavelength than the other LED circuits;
at least one active current limiting device being connected in series with at least one LED in at least one of the at least
two LED circuits,

wherein each LED circuit is capable of emitting light during both a positive and a negative phase of a provided AC voltage
when the LED lighting device is connected to an AC voltage source.

US Pat. No. 9,249,953

LED LAMP HAVING A SELECTABLE BEAM ANGLE

LYNK LABS, INC., Elgin, ...

1. An LED Lamp comprising:
a lamp housing including a lamp base, the lamp base being capable of connecting to a source of electrical power;
at least one LED lighting device having at least one LED, the LED lighting device being electrically connected to the lamp
base and being offset from a center line running vertically through the center of the lamp housing; and,

at least one optic having at least two sub-optics, each sub-optic capable of allowing a different beam angle of light distribution
to pass there through when aligned with the LED lighting device, the optic being integrated with the lamp housing and configured
such that the optic may be rotated to align a selected sub-optic over the LED lighting device and allow a desired beam angle
to be emitted by the LED lamp;

an LED drive circuit electrically connected to the lamp base and the at least one LED lighting device, the LED drive circuit
being integrated within the lamp housing being capable of receiving electrical power from the lamp base and providing it to
the at least one LED lighting device, wherein the LED drive circuit includes a bridge rectifier, the bridge rectifier capable
of rectifying electrical power received from the lamp base before supplying rectified power to the at least one LED lighting
device.

US Pat. No. 9,198,237

LED LIGHTING SYSTEM

LYNK LABS, INC., Elgin, ...

1. An LED lighting system comprising:
at least one LED circuit comprising at least two LEDs connected in series;
a driver having an input for receiving a first AC voltage and frequency from an AC power source, the driver having
a first circuit capable of receiving the first AC voltage and first frequency and having an output capable of being connected
to the at least one LED circuit to drive the at least two LEDs;

a second circuit capable of receiving the first AC voltage and first frequency and having an output capable of being connected
to the at least one LED circuit to drive the at least two LEDs; and,

a third circuit which senses and permits the output of only one of the first or second circuits to be provided to the at least
one LED circuit.

US Pat. No. 9,516,716

COLOR TEMPERATURE CONTROLLED AND LOW THD LED LIGHTING DEVICES AND SYSTEMS AND METHODS OF DRIVING THE SAME

LYNK LABS, INC., Elgin, ...

1. An LED lighting device comprising:
at least one LED circuit having at least two LEDs connected in series;
a first active current limiting device connected in parallel with at least one LED in the at least one LED circuit to bypass
the at least one LED connected in parallel with the first active current limiting device until a voltage threshold is reached,
the first active current limiting device setting an upper limit on the amount of current flowing through any LEDs in the LED
circuit the first active current limiting device is not connected in parallel with.

US Pat. No. 9,615,420

LED LIGHTING SYSTEM

LYNK LABS, INC., Elgin, ...

1. An LED lighting system comprising:
at least one LED circuit comprising at least two LEDs connected in series;
a first driver having an input for receiving a first AC voltage and frequency from an AC power source, the first driver having
a first driver output;

a second driver having an input for receiving the first AC voltage and frequency from the AC power source, the second driver
having a second driver output; and,

a sensor for sensing the first driver output and the second driver output, the sensor being configured to selectively provide
the first driver output or the second driver output to the at least one LED circuit, to drive the at least one LED circuit.

US Pat. No. 10,091,842

AC LIGHT EMITTING DIODE AND AC LED DRIVE METHODS AND APPARATUS

LYNK LABS, INC., Elgin, ...

1. An LED driver comprising:an input of a first voltage and a first frequency, wherein the first voltage is an AC voltage;
the LED driver connected to at least one LED circuit and providing an output of a second voltage and a second frequency to the at least one LED circuit, wherein the second voltage is either a rectified DC voltage or a rectified AC voltage and wherein the second frequency of the output is a relatively higher frequency than the first frequency of the input; and
wherein the LED driver includes a voltage regulator which regulates the second voltage at a relatively fixed level with respect to changes in an LED load connected to the output of the LED driver.

US Pat. No. 9,693,405

DEVICES AND SYSTEMS HAVING AC LED CIRCUITS AND METHODS OF DRIVING THE SAME

LYNK LABS, INC., Elgin, ...

1. A method of driving a lighting device or system, the method comprising the steps of:
connecting at least two LEDs such that at least one of the at least two LEDs is capable of emitting light during a positive
phase from an AC power source, and at least one of the at least two LEDs is capable of emitting light during a negative phase
from an AC power source;

providing DC power across the at least two LEDs, the at least two LEDs forming a load such that at least one of the at least
two LEDs is forward biased by the DC power and at least one of the at least two LEDs is reversed biased by the DC power;

sensing the load to insure that the at least one LED configured to be forward biased by the DC power is operational; and,
reversing the polarity of the DC power across the load dynamically so as to forward bias the at least one LED that was previously
reverse biased if the at least one LED previously configured to forward biased is no longer operational.

US Pat. No. 10,257,892

DEVICES AND SYSTEMS HAVING AC LED CIRCUITS AND METHODS OF DRIVING THE SAME

Lynk Labs, Inc., Elgin, ...

1. A lighting system comprising:a driver providing a DC output;
at least two LED circuits, each of which includes at least two LEDs, the at least two LED circuits electrically configured so that when the at least two LED circuits are connected to the DC output a first LED circuit of the at least two LED circuits is forward biased by the driver;
a load sensor connected to at least one of the at least two LED circuits, wherein the load sensor senses operation of the first LED circuit forward biased by the driver; and
a switching circuit capable of switching the DC output of the driver to forward bias a second LED circuit of the at least two LED circuits based on the operation of the first LED circuit sensed by the load sensor.

US Pat. No. 10,154,551

AC LIGHT EMITTING DIODE AND AC LED DRIVE METHODS AND APPARATUS

Lynk Labs, Inc., Elgin, ...

22. A lighting system comprising:at least one LED circuit having at least two LEDs connected together in series and mounted on a reflective substrate, the at least one LED circuit being capable of emitting light during both a positive phase and a negative phase of an AC power supply;
a driver connected to the at least one LED circuit, the driver providing AC voltage and current to the at least one LED circuit, the driver having an input of a first AC voltage and a first frequency and an output of a second AC voltage and a second frequency, wherein the second AC voltage is a relatively fixed voltage and the second frequency is a relatively higher frequency than the first frequency when connected to the at least one LED circuit;
the driver being capable of sensing changes to the load when connected to the at least one LED circuit, and the driver being capable of adjusting the frequency and/or AC voltage output of the driver to a desired relatively fixed value in response to changes to the load,
wherein the driver and the at least one LED circuit form a driven circuit and the driver and the at least one LED circuit being configured such that one or more additional LED circuits can be added to or subtracted from the driven circuit without significantly affecting a pre-determined desired output range of light from any pre-existing or remaining LED circuit so long as the total wattage output of the driver is not exceeded.

US Pat. No. 10,051,703

LED LIGHTING SYSTEM

Lynk Labs, Inc., Elgin, ...

1. A LED lighting system comprising:at least one a first LED circuit and a second LED circuit, each circuit comprising at least two LEDs connected in series;
a first driver circuit having an input for receiving a first AC voltage and frequency from an AC power source, the first driver having a first driver output and connected to the first LED circuit;
a second driver circuit having an input for receiving the first AC voltage and frequency from the AC power source, the second driver having a second driver output and connected to the second LED circuit; and,
a controller for controlling the first driver circuit output and the second driver circuit output to the at least first and second LED circuits, the controller being configured to selectively provide the first driver output or the second driver output to the first and second LED circuits.

US Pat. No. 10,178,715

HIGH FREQUENCY MULTI-VOLTAGE AND MULTI-BRIGHTNESS LED LIGHTING DEVICES AND SYSTEMS AND METHODS OF USING SAME

Lynk Labs, Inc., Elgin, ...

1. A lighting system powered by an AC voltage source, the lighting system comprising:a. a high-frequency AC driver configured to receive at least two different AC forward voltages and having an AC voltage input and an AC voltage output, the AC voltage input being one of the at least two different AC forward voltages, the AC voltage output being a relatively constant voltage at a relatively constant frequency, wherein the relatively constant frequency is substantially higher than a frequency of the AC voltage input;
b. at least two LED circuits each of which have at least two LEDs connected in series, electrically connected to the AC voltage output of the high-frequency AC driver; and
c. the at least two LED circuits are connected to the AC voltage output of the high-frequency AC driver in either a series relationship or a parallel relationship.

US Pat. No. 10,349,479

COLOR TEMPERATURE CONTROLLED AND LOW THD LED LIGHTING DEVICES AND SYSTEMS AND METHODS OF DRIVING THE SAME

Lynk Labs, Inc., Elgin, ...

1. A driver for an LED lighting device comprising:a bridge rectifier, the bridge rectifier having a first pair of driver connection leads to connect the bridge rectifier to an AC voltage source;
a current limiting device connected to the output of the bridge rectifier;
a second set of driver connection leads having a third and a fourth driver connection lead, wherein the third driver connection lead is connected to the output of the current limiting device and the fourth driver connection lead provides a return to the bridge rectifier when connected to a load; and
a second current limiting device and a third set of driver connection leads, the second current limiting device electrically unconnected from the bridge rectifier and the current limiting device, wherein the third set of driver connection leads includes a fifth driver connection lead connected to the input of the second current limiting device and a sixth driver connection lead connected to the output of the second current limiting device.

US Pat. No. 10,334,680

LED LIGHTING SYSTEM

Lynk Labs, Inc., Elgin, ...

1. A LED lighting system comprising:at least a first LED driver circuit and a second LED driver circuit, wherein at least one of the driver circuits is configured to operate at multiple AC voltage levels, and wherein at least one of the LED driver circuits is configured to be electrically connected to and from one or more LEDs;
the first LED driver circuit having an input for receiving an AC voltage and frequency from an AC power source;
the second LED driver circuit having an input for receiving an AC voltage and frequency from an AC power source; and
a controller for controlling when the first LED driver circuit output and the second LED driver circuit output is connected to the one or more LEDs.

US Pat. No. 10,271,393

MULTI-VOLTAGE AND MULTI-BRIGHTNESS LED LIGHTING DEVICES AND METHODS OF USING SAME

Lynk Labs, Inc., Elgin, ...

1. An LED lighting device comprising:a first LED circuit and a second LED circuit, each of the first LED circuit and the second LED circuit including at least two LEDs connected in either series or parallel; and
a switch that is selectable by a user and capable of independently connecting an AC voltage power source to or disconnecting the AC voltage power source from each of the first LED circuit and the second LED circuit,
wherein the switch is connected to each of the first LED circuit and the second LED circuit such that each of the first LED circuit and the second LED circuit is independently controlled by the switch; and
wherein the LED lighting device is configured to connect to the AC voltage power source.

US Pat. No. 10,433,382

LOW FLICKER AC DRIVEN LED LIGHTING SYSTEM, DRIVE METHOD AND APPARATUS

LYNK LABS, INC., Elgin, ...

1. An LED lighting device comprising:a first LED circuit having at least one LED, the first LED circuit having at least a first switch connected in series with the first LED circuit;
a second LED circuit having at least one LED, the second LED circuit having at least a second switch connected in series with the second LED circuit;
a third switch configured to connect the first LED circuit in series with the second LED circuit;
a controller for dynamically controlling the first switch, the second switch and the third switch to connect the first LED circuit and the second LED circuit in series or parallel configurations in response to an input to the controller; and
a dimmer control, wherein the dimmer control regulates voltage and current provided to each LED circuit.