Analysis and design of a DC/DC ZVS PWM off-line converter

Author

Pinheiro, J.R. ; Pegoraro, T.F. ; Baggio, J.E.

Author_Institution

Fed. Univ. of Santa Maria, Brazil

Volume

2

fYear

1998

fDate

15-19 Feb 1998

Firstpage

640

Abstract

A complete analysis and characterization of a DC/DC ZVS PWM off-line converter are presented. The regions of soft-switching for all the semiconductor devices are identified. The DC/DC converter is composed of a half-bridge on the input side and a double-boost on the output side. The analyzed DC/DC converter presents low switching losses (ZVS), low device and component stresses, simple control, step-up/down operation (boost-buck), and it operates ZVS at a wide load range. Therefore, the combination of these attributes results in a high power density and efficient converter. Principle of operation, theoretical analysis, design procedure and an example along with laboratory experimental results are presented to demonstrate the feasibility and validation of the theoretical analysis

Keywords

DC-DC power convertors; PWM power convertors; bridge circuits; losses; power MOSFET; switching circuits; DC/DC ZVS PWM off-line converter; MOSFET; ZVS; boost-buck operation; design procedure; double-boost; efficient converter; half-bridge; high power density; input side; low component stresses; low device stresses; low switching losses; operation principle; output side; semiconductor devices; soft-switching; step-up/down operation; wide load range; Circuits; DC-DC power converters; Filters; Inductors; Pulse width modulation; Pulse width modulation converters; Resonance; Stress control; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-4340-9

Type

conf

DOI

10.1109/APEC.1998.653967

Filename

653967