Patent ID: 9538599
Date: 2017-01-03
CPC Classifications: H05B,Y02B

Claim:
1. An LED lighting apparatus, comprising: a rectification unit connected to an alternating current (AC) power source and outputting a first rectified voltage as a first drive voltage to a light-emitting diode (LED) light-emitting unit through full-wave rectification of an AC voltage; the LED light-emitting unit comprising a first LED group to an n an LED drive controller configured to detect an LED drive current flowing through the LED light emitting unit or a constant current switch connected to the LED light emitting unit and configured to control sequential driving of the first LED group to the n wherein the LED drive controller is configured to set an LED drive current in each of operation sections to be inversely proportional to a total number of LEDs operated to emit light in each of the operation sections such that a difference between light output of the LED light-emitting unit in each of the operation zones does not exceed a predetermined light output deviation, and is configured to control the LED drive current to a constant drive current in a corresponding operation section according to the set LED drive current in each of the operation sections.