Movement-based dynamic filtering for smooth dimming of lights
AssigneeErp Power, LLC
InventorSteven C. Krattiger
Life of this patent
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Abstract
A method of controlling a power supply electrically coupled to a dimmer includes receiving a current sample value of a plurality of sample values corresponding to dimmer levels, determining whether there is a change in the dimmer levels, determining a dynamic weight of the current sample value based on the determining whether there is a change in the dimmer levels, filtering the plurality of sample values based on the dynamic weight to generate a plurality of filtered values, and generating a control signal based on the filtered values for transmission to the power supply.
Claims20
A method of controlling a power supply by a power supply controller electrically coupled to a dimmer, the method comprising:
- sampling, by a processor of the power supply controller, a signal corresponding to dimmer levels of the dimmer to generate a plurality of sample values;
- determining, by the processor, whether there is a change in the dimmer levels based on a current sample value of the plurality of sample values;
- determining, by the processor, a dynamic weight of the current sample value based on the determining whether there is a change in the dimmer levels;
- filtering, by the processor, the plurality of sample values based on the dynamic weight to generate a plurality of filtered values;
- and
- generating, by the processor, a control signal based on the filtered values for transmission to the power supply, the power supply being configured to drive a light source based on the control signal.
A power supply controller coupled to a dimmer and a power supply, the power supply controller comprising:
- a processor;
- and
- a processor memory local to the processor, wherein the processor memory has stored thereon instructions that, when executed by the processor, cause the processor to perform:
- sampling a signal corresponding to dimmer levels of the dimmer to generate a plurality of sample values;
- determining whether there is a change in the dimmer levels based on a current sample value of the plurality of sample values;
- determining a dynamic weight of the current sample value based on the determining whether there is a change in the dimmer levels;
- filtering the plurality of sample values based on the dynamic weight to generate a plurality of filtered values;
- and
- generating a control signal based on the filtered values for transmission to the power supply, the power supply being configured to drive a light source based on the control signal.
Dependencies are inferred from the claim text.