Patent ID: 9480108
Filing Date: 2016-10-25
CPC Classification: H05B

Claim Text:
1. A light source module, comprising: one or more light emitters of a first color forming a first color group; one or more light emitters of a second color forming a second color group, the one or more light emitters of the second color group connected in series with the one or more light emitters of the first color group; a second color group adjustment circuit connected in parallel with the one or more light emitters of the second color group, the second color group adjustment circuit configured to adjust color, to adjust intensity of output light, or to adjust color and intensity of output light of the second color group; and a current source connected in series with solid-state color emitters of the first and the second color groups, wherein the second color group adjustment circuit includes a feedback mechanism configured to simultaneously provide adjusted non-zero currents to flow through the one or more light emitters of the second color group and the second color group adjustment circuit, wherein a first sensing resistor is in series with the second color group and a second sensing resistor is in series with the second color group adjustment circuit and wherein the feedback mechanism senses currents at outputs of the first sensing resistor and the second sensing resistor.