Optimization and design issues of low output voltage, off-line, zero-voltage-switched PWM converters

Author

Chen, Qing ; Lotfi, Ashraf ; Lee, Fred C.

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

fYear

1992

fDate

23-27 Feb 1992

Firstpage

73

Lastpage

80

Abstract

The augmented Lagrangian (ALAG) penalty function technique is used to optimize low-output voltage, offline full-bridge (FB) zero-voltage-switched (ZVS) pulse width modulated (PWM) converters. Various design tradeoffs, such as the ZVS range, the leakage inductance, and the switching frequency, are discussed. A 5 V, 325 W ZVS-FB-PWM converter was designed. The hardware implementation is used for extensive experimental verification

Keywords

optimisation; power convertors; pulse width modulation; 325 W; 5 V; ALAG; ZVS; augmented Lagrangian penalty function; design; leakage inductance; low output voltage; off-line full-bridge convertors; optimisation; switching frequency; zero-voltage-switched PWM converters; Capacitance; Design optimization; Diodes; Lagrangian functions; Low voltage; MOSFET circuits; Power transformer insulation; Pulse width modulation converters; Switching frequency; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1992. APEC '92. Conference Proceedings 1992., Seventh Annual

Conference_Location

Boston, MA

Print_ISBN

0-7803-0485-3

Type

conf

DOI

10.1109/APEC.1992.228428

Filename

228428