Patent ID: 11882632
Assignee: ERP POWER, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 19:
20. A multi-channel power supply system comprising:
a power supply circuit configured to generate a drive signal at a secondary winding of the power supply circuit for powering a plurality of color channels based on an input power signal, the plurality of color channels comprising a red color channel, a blue color channel, and a green color channel;
a plurality of rectifiers coupled between the power supply circuit and the plurality of color channels, each rectifier of the plurality of rectifiers being directly coupled to a same output of the secondary winding and coupled to a different one of the plurality of color channels;
a first current control circuit coupled to the green color channel and configured to adjust the first channel current of the green color channel based on the drive signal and a first reference signal;
a second current control circuit coupled to the blue color channel and configured to adjust a second channel current of the blue color channel based on the drive signal and a second reference signal;
a third current control circuit coupled to the red color channel and configured to adjust a third channel current of the red color channel based on the drive signal and a third reference signal; and
a channel controller configured to control the first current control circuit by generating the first, second, and third reference signals based on a color temperature according to a black body curve and further based on a dimmer setting from a dimming controller.