System and method for controlling a light emitting diode fixture
View Patent ↗One embodiment in accordance with the invention can include a circuit for controlling a light emitting diode (LED) lighting fixture via a power line. The circuit can include a power switch coupled to the power line and is for outputting a firing angle. Additionally, the circuit can include a control circuit coupled to the power switch and is for implementing firing angle control of the power switch. Furthermore, the circuit can include a translator coupled to receive the firing angle and for mapping the firing angle to a function of the LED lighting fixture.
1. A device comprising
a translator circuit coupled to receive a firing angle from a power switch comprising a control circuit that controls the firing angle of the power switch, wherein the translator circuit is configured to map the firing angle to one of a plurality of commands of a light emitting diode (LED) lighting fixture, wherein the LED lighting fixture is configurable to provide a plurality of functions controllable based on the plurality of commands.
2. The device of claim 1 , wherein the translator circuit is configured to determine a parameter associated with the firing angle received from the power switch and configured to generate a control signal based, at least in part, on, the parameter associated with the firing angle, wherein the control signal is configured to prompt a driver circuit to control functionality of the LED lighting fixture, wherein the firing angle is encoded with a plurality of functions of the LED lighting fixture, wherein a first pulse of the firing angle is encoded with a first of the plurality of functions and a second pulse of the firing angle is encoded with a second of the plurality of functions.
3. The device of claim 2 , wherein the control signal comprises at least one of an intensity command for the LED lighting fixture, a color command for the LED lighting fixture, a power factor command for the LED lighting fixture, or a power dissipation command for the LED lighting fixture.
4. The device of claim 2 , wherein the translator circuit further comprising a control device configured to identify a type of operation for the LED lighting fixture to perform based on the parameter associated with the firing angle, and to generate the control signal based on the type of operation for the LED lighting fixture to perform.
5. The device of claim 4 , wherein the translator circuit further comprises a mapping between parameters associated with firing angles and operations for the LED lighting fixture to perform, wherein the control device is configured to utilize the mapping and the parameter to identify the type of operation for the LED lighting fixture to perform.
6. The device of claim 2 , wherein the firing angle is an alternating power signal encoded with information corresponding to the parameter.
7. The device of claim 6 , wherein the translator circuit further comprising:
a bridge rectifier configured to generate a non-alternating power signal from the alternating power signal; and
a comparator circuit configured to compare the non-alternating power signal with a reference voltage to generate an output signal, wherein the parameter associated with the firing angle corresponds to a width of a pulse in the output signal.
8. The device of claim 1 , wherein the LED lighting fixture comprises a plurality of LEDs coupled in series or in parallel.
9. A method comprising:
determining, by a translator circuit, a parameter associated with a firing angle received from a power switch; and
generating, by the translator circuit, a control signal based, at least in part, on the parameter associated with the firing angle, wherein the control signal is configured to prompt a driver circuit to control operation of a light emitting diode (LED) lighting fixture, wherein the LED lighting fixture is configurable to provide a plurality of functions controllable based on the plurality of commands, wherein the firing angle is encoded with a plurality of functions of the LED lighting fixture.
10. The method of claim 9 , wherein the control signal comprises at least one of an intensity command for the LED lighting fixture, a color command for the LED lighting fixture, a power factor command for the LED lighting fixture, or a power dissipation command for the LED lighting fixture.
11. The method of claim 9 further comprising identifying, by the translator circuit, a type of operation for the LED lighting fixture to perform based on the parameter associated with the firing angle, wherein generating the control signal is based on the type of operation for the LED lighting fixture to perform.
12. The method of claim 11 , wherein identifying the type of operation for the LED lighting fixture to perform further comprising utilizing, by the translator circuit, a mapping between parameters associated with firing angles and operations for the LED lighting fixture to perform to identify the type of operation for the LED lighting fixture to perform.
13. The method of claim 9 , wherein the firing angle is an alternating power signal encoded with information corresponding to the parameter.
14. The method of claim 13 , wherein determining the parameter associated with the firing angle further comprising:
generating, by the translator circuit, a non-alternating power signal from the alternating power signal; and
comparing, by the translator circuit, the non-alternating power signal with a reference voltage to generate an output signal, wherein the parameter associated with the firing angle corresponds to a width of a pulse in the output signal.
15. An apparatus comprising
a translation device configured to decode a firing angle of a power signal to identify an operation for a light emitting diode (LED) lighting device to perform, and configured to receive the firing angle from a power switch comprising a control circuit that controls the firing angle of the power switch and to generate one of a plurality of command signals based, at least in part, on the firing angle, wherein the plurality of command signals are configured to control a plurality of operations of the LED lighting device.
16. The device of claim 15 , wherein the one command signal comprises at least one of an intensity command for the LED lighting device, a color command for the LED lighting device, a power factor command for the LED lighting device, or a power dissipation command for the LED lighting device.
17. The device of claim 15 , wherein the translation device is configured to identify a type of operation for the LED lighting device to perform based on the firing angle, and to generate the one command signal based on the type of operation for the LED lighting device to perform.
18. The device of claim 17 , wherein the translation device includes a mapping between firing angles and the plurality of operations for the LED lighting device to perform, wherein the control device is configured to utilize the mapping and the firing angle to identify the type of operation for the LED lighting device to perform.
19. The device of claim 15 , wherein the power signal is a periodic alternating power signal having sections located at alternating points in the power signal that correspond to the firing angle.
20. The device of claim 19 , wherein the translation device is configured to compare the power signal with a reference voltage to generate an output signal, wherein the firing angle corresponds to a width of at least one of the sections in the output signal.
21. The device of claim 15 , wherein the LED lighting device comprises a plurality of LEDs coupled in series or in parallel.