학술저널
수동 역률 보상회로를 이용한 LED 센서등 회로의 개발
Development of LED sensor lights circuit by passive power factor correction circuit
- 강원대학교 산업기술연구소
- 산업기술연구
- vol.32
-
2012.09109 - 114 (6 pages)
- 7
In this paper, We studied LED(Light Emitted Diode) sensor lights system using PIR(Pyroelectric Infrared Ray) sensor, CdS and MCU(Micro Controller Unit). And applied the valley fill circuit to improve the power factor. We designed the amplifier for each sensor and the LED driver for constant current which is the buck converter. Also, we proposed the algorithm of LED control by each sensors using MCU. Experimental results showed that power factor is 92% with valley fill circuit.
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