Patent ID: 8324821
Filing Date: 2012-12-04
Classification: H05B

Abstract:
1. A two-wired LED (Light-Emitting Diode) light adjusting system for adjusting light of an LED lamp module, comprising: a phase modulating circuit, coupled to an alternating current (AC) power source, for generating a phase modulating voltage, wherein the phase modulating circuit partially restrains AC power received from the AC power source for a waveform of the phase modulating voltage to comprise a non-conduction angle; a rectifying circuit, coupled to the phase modulating circuit and the AC power source for rectifying the phase modulating voltage so as to generate a DC (direct current) voltage; an LED driving circuit, coupled to the LED lamp module and the rectifying circuit, for driving the LED lamp module according to the DC voltage; and a controller, coupled between the phase modulating circuit and the LED driving circuit, for controlling the LED driving circuit to drive the LED lamp module according to the non-conduction angle of the waveform of the phase modulating voltage.