Configuration of load regulation device for lighting control
The invention relates to a configuration of a load regulation device for lighting control. A load regulation device, such as an LED driver, may be configured to control an intensity of a light source based on an analog control signal and a pre-configured dimming profile. The LED driver may sense an...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to a configuration of a load regulation device for lighting control. A load regulation device, such as an LED driver, may be configured to control an intensity of a light source based on an analog control signal and a pre-configured dimming profile. The LED driver may sense an amplitude of the analog control signal and determine a new low-side and/or high-side control signal amplitude that falls outside an input signal range of the dimming profile. The LED driver may re-scale the pre-configured dimming curve according to a new low-end and/or high-end control signal amplitude, and dim the light source based on the re-scaled dimming curve. A plurality of LED drivers controlled by the same analog control signal may communicate with each other with respect to the amplitude of the analog control signal sensed by each LED driver, and match their target intensity levels despite sensing different analog control signals. A controller may be provided to coordinate operation of the plurality of LED |
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