Title :
Design optimization of an off-line input harmonic current corrected flyback converter
Author :
Zhao, Qun ; Lee, Fred C. ; Tsai, Fu-Sheng
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
Characterization of bulk capacitor voltage stress in a single-switch, input harmonic current corrected flyback converter is presented. A design procedure for optimizing such a converter design by limiting the bulk capacitor voltage stress, maintaining high efficiency while complying with IEC 1000-3-2 class D input harmonic current requirements is introduced. A 60 W universal input, 5 V at 12 A power supply designed following the procedure was built, and the theoretical prediction of bulk capacitor voltage as well as the predicted input harmonic contents are verified experimentally
Keywords :
AC-DC power convertors; DC-DC power convertors; IEC standards; capacitors; power conversion harmonics; power factor correction; power supplies to apparatus; switching circuits; 12 A; 5 V; 60 W; IEC 1000-3-2 class D requirements; bulk capacitor voltage stress; design optimization; high efficiency; off-line input harmonic current corrected flyback converter; power supply; single-switch converter; Capacitors; Costs; DC-DC power converters; Design optimization; IEC standards; Power factor correction; Power supplies; Power system harmonics; Stress; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1999. APEC '99. Fourteenth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-5160-6
DOI :
10.1109/APEC.1999.749495
