# US 2014/0191675 A1 · System and method for controlling a light emitting diode fixture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191675 A1 - Document ID: US20140191675A1 - Status: Published application - Kind: A1 - Application number: 14/079,818 - Filed: 2013-11-14 - Published: 2014-07-10 - Earliest claimed: 2007-12-21 - Assignees: Cypress Semiconductor Corporation - Applicants: Cypress Semiconductor Corporation - Inventors: Kedar Godbole; Douglas Vargha - Web page: https://patentgrep.com/patent/US20140191675A1 ## CPC - H05B 45/31: Phase-control circuits - H05B 45/10: Controlling the intensity of the light - H05B 45/357: specially adapted for retrofit LED light sources - H05B 45/36: Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI] - Y02B 20/30: Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED] - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract 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. ## Claims ### Claim at position 1 1-20. (canceled) ### Claim 21 An apparatus comprising a circuit coupled to a light emitting diode (LED) driver circuit, wherein the circuit is operative to control functionality of the LED driver circuit based on a firing angle from a power switch. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the circuit comprises a translator circuit coupled to receive the firing angle from the power switch. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the translator circuit is operative to map the firing angle to one of a plurality of commands of a LED lighting fixture coupled to the LED driver circuit, wherein the LED lighting fixture is configurable to provide a plurality of functions controllable based on the plurality of commands. ### Claim 24 (depends on 23) The apparatus of claim 23, wherein the translator circuit is operative to determine a parameter associated with the firing angle received from the power switch and operative to generate a control signal based, at least in part, on, the parameter associated with the firing angle, wherein the control signal is operative to prompt the LED 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. ### Claim 25 (depends on 24) The apparatus of claim 24, 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. ### Claim 26 (depends on 24) The apparatus of claim 24, wherein the translator circuit further comprising a control device operative 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. ### Claim 27 (depends on 26) The apparatus of claim 26, 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 operative to utilize the mapping and the parameter to identify the type of operation for the LED lighting fixture to perform. ### Claim 28 (depends on 24) The apparatus of claim 24, wherein the firing angle is an alternating power signal encoded with information corresponding to the parameter. ### Claim 29 (depends on 28) The apparatus of claim 28, further comprising: wherein the translator circuit further comprising: a bridge rectifier operative to generate a non-alternating power signal from the alternating power signal; and a comparator circuit operative 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. ### Claim 30 (depends on 23) The apparatus of claim 23, wherein the LED lighting fixture comprises a plurality of LEDs coupled in series or in parallel. ### Claim 31 A method comprising: determining, by a circuit, a parameter associated with a firing angle received from a power switch; and generating, by the circuit, a control signal in view of the parameter, wherein the control signal is operative to control a light emitting diode (LED) driver circuit. ### Claim 32 (depends on 31) The method of claim 31, wherein the control signal is operative to prompt the LED 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. ### Claim 33 (depends on 32) The method of claim 32, wherein the firing angle is encoded with a plurality of functions of the LED lighting fixture. ### Claim 34 (depends on 33) The method of claim 33, 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. ### Claim 35 (depends on 33) The method of claim 33, further comprising identifying, by a translator circuit of the 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. ### Claim 36 (depends on 35) The method of claim 35, 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. ### Claim 37 (depends on 33) The method of claim 33, wherein the firing angle is an alternating power signal encoded with information corresponding to the parameter. ### Claim 38 (depends on 37) The method of claim 37, wherein determining the parameter associated with the firing angle further comprising: generating, by a translator circuit of the 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. ### Claim 39 An apparatus comprising a translation device operative to decode a firing angle of a power signal to identify an operation for a light emitting diode (LED) lighting device to perform, and 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 a command signal based, at least in part, on the firing angle to control an operation of the LED lighting device. ### Claim 40 (depends on 39) The apparatus of claim 39, wherein the 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.