Light emitting diode driving circuit structure

Abstract

A light emitting diode (LED) driving circuit structure includes a surge absorber unit, a voltage suppression unit connected to the surge absorber unit, a rectifier unit electrically connected to the voltage suppression unit, a control chip connected to a fourth junction of the rectifier unit, and an impedance unit connected to the control chip. The LED driving circuit structure is installed on an LED light circuit board having a plurality of LEDs mounted thereon. According to the sinusoidal wave form of the alternating current (AC) supplied to the LEDs as well as the number and layout of the LEDs on the LED light circuit board, the LED driving circuit structure controls the current flowing through the LEDs to vary with changes of supply voltage, so as to enable effectively increased power factor and reduced harmonics, as well as effectively lowered manufacturing and material costs.

Dependencies are inferred from the claim text.