Zero-voltage-switching converters with multi-resonant bipolar switch

Author

Gegner, Joel P. ; Lee, C.Q.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA

fYear

1993

fDate

20-24 Jun 1993

Firstpage

337

Lastpage

343

Abstract

Full-wave mode operation of zero-voltage-switched (ZVS) power converters may be losslessly implemented by splitting the resonant capacitor across both the active switch (MOSFET) and the series diode. By appropriately choosing the relative size of each capacitor, charge otherwise trapped inside the MOSFET output capacitance at turn-on may be recirculated through the second capacitor, realizing true zero-voltage-switching. Improved load regulation of ZVS converters (such as ZVS-QRCs) is thereby achieved without sacrificing efficiency at high frequencies. Analysis, simulation, and experimental verification are presented

Keywords

circuit testing; field effect transistor switches; load regulation; network analysis; power MOSFET; power capacitors; power field effect transistors; power semiconductor switches; resonant power convertors; switching circuits; ZVS power convertors; active switch; analysis; charge recirculation; efficiency; full-wave operation; load regulation; multi-resonant bipolar switch; power MOSFETs; resonant capacitor; series diode; simulation; turn-on; Capacitance; Capacitors; Diodes; Frequency conversion; MOSFET circuits; Power MOSFET; Resonance; Switches; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE

Conference_Location

Seattle, WA

Print_ISBN

0-7803-1243-0

Type

conf

DOI

10.1109/PESC.1993.471909

Filename

471909