US Pat. No. 10,143,059

CIRCUIT OF DIMMING AND TONING BASED ON A DRIVER ON BOARD MODULE

SHENZHEN ANGELED CO., LTD...

1. A circuit of dimming and toning based on a driver on board module, comprising:a silicon controlled dimming circuit module;
a rectifier module;
a plurality of balanced architecture LED modules;
an AC constant current power supply module comprising a plurality of AC constant current power supply sub units supplying power for the plurality of balanced architecture LED modules respectively; and
a color feedback comparison module;
wherein the silicon controlled dimming circuit module, the rectifier module, and the AC constant current power supply module are electrically connected to each other;
wherein the color feedback comparison module is located between every two balanced architecture LED modules to compare voltages generated thereby and no power contrast feedback between two balanced architecture LED modules is generated when the silicon controlled dimming circuit module adjusts current, so that the color feedback comparison module makes an LED bead thereof to choose road between the balanced architecture LED modules to realize colour temperature adjusting.