Patent ID: 9538604
Date: 2017-01-03
CPC Classifications: H05B,Y02B

Claim:
1. A lighting emitting diode (LED) system, comprising: a first LED array having one or more LED devices; a second LED array having one or more LED devices; a dimmable driver circuit configured to provide a driver current; and a current splitter circuit configured to receive the driver current and to split the driver current into a first current for the first LED array and a second current for the second LED array according to a current ratio; an interface provided at the current splitter circuit configured to receive a variable reference signal for controlling the current ratio independently of the dimmable driver circuit; wherein the current splitter circuit is configured to adjust the current ratio of the first current and the second current independently of the driver current according to a current ratio control curve, the current ratio control curve specifying the current ratio between the first current and the second current as a function of at least the variable reference signal.