Title :
Efficiency Improvement Research on Single-stage Power Factor Correction
Author :
Xu Jun-ming ; Li Zhen-sen
Author_Institution :
Inst. of Electron. Inf., Hang Zhou Dianzi Univ., Hang Zhou, China
Abstract :
Taking 50 W fly-back single-stage PFC power supply as a example, this paper researched the technologies of synchronous rectification, transformer optimizing, clamp circuits and fast soft turning off technology in order to improve the power efficiency and reduce the power EMI. Experimental test results show the efficiency can reach above 90% in wide voltage range. With the addition of EMI filter, the power can well meet international standards of conducted EMI.
Keywords :
power factor correction; power filters; rectification; EMI filter; clamp circuits; fly-back single-stage PFC power supply; power 50 W; power EMI; power efficiency; single-stage power factor correction; synchronous rectification; transformer optimisation; Capacitors; Circuit testing; Electromagnetic interference; Filters; Light emitting diodes; MOSFET circuits; Power factor correction; Power transformer insulation; Power transformers; Switched-mode power supply;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448837
