A Method to Reduce Power Consumption of Active-Clamped Flyback Converter at No-Load Condition

Author

Kim, Jong Hyun ; Ryu, Myung Hyo ; Min, Byung Duk ; Song, Eui Ho

Author_Institution

Korea Electrotechnol. Res. Inst., Changwon

fYear

2006

fDate

6-10 Nov. 2006

Firstpage

2811

Lastpage

2814

Abstract

A method for lower power consumption of active-clamped flyback converter at no-load condition is proposed in this study. The active-clamped flyback converter is one of the most well known converters, which can reduce the switching losses and EMI noises. However this converter is more than conventional flyback converter with respect to power consumption in the no-load condition. This is due to high conduction current of resonant converter. To reduce conduction loss at no-load condition, the converter turns off the auxiliary switch and operates only flyback mode. Some experimental results are included to verify the system performances in this paper. The test result showed that the power loss is 0.75 W at no-load condition. This result is the compliance with the European Code of Conduct limits regarding the no-load power consumption

Keywords

electromagnetic interference; losses; power consumption; resonant power convertors; switching convertors; 0.75 W; EMI noises reduction; European Code of Conduct limits; active-clamped flyback converter; auxiliary switch; conduction loss reduction; no-load condition; power consumption reduction; resonant converter; switching losses reduction; Clamps; Electromagnetic interference; Energy consumption; Inductance; Stress; Switches; Switching circuits; Switching converters; Switching loss; Zero voltage switching; Active-clamped flyback converter; No-load condition; Power consumption;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on

Conference_Location

Paris

ISSN

1553-572X

Print_ISBN

1-4244-0390-1

Type

conf

DOI

10.1109/IECON.2006.347826

Filename

4153264