A Zero-Current-Transition Converter with Reduced Auxiliary Circuit Losses

Author

Das, Pritam ; Moschopoulo, Gerry

Author_Institution

Univ. of Western Ontario, London, Ont.

fYear

2005

fDate

Sept. 2005

Firstpage

545

Lastpage

550

Abstract

A new zero-current switching (ZCS) pulse-width modulated (PWM) boost converter is proposed in the paper. The main power switch in the proposed converter can operate with ZCS due to an active auxiliary circuit that diverts current away from the switch just before it is turned off. The circuit allows the converter to operate with ZCS without the disadvantages typically found in other, previously proposed ZCS PWM converters such as increased switch stresses and excessive circulating current. In the paper, the operation of the proposed converter is explained in detail and general design guidelines are given. The feasibility of the new converter is confirmed with results obtained from an experimental prototype

Keywords

PWM power convertors; losses; switching convertors; zero current switching; ZCS PWM boost converter; auxiliary circuit losses reduction; circulating current; power switch; switch stresses; zero-current switching pulse-width modulated boost converter; zero-current-transition converter; Electromagnetic interference; Inductors; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation converters; Switches; Switching circuits; Switching converters; Voltage; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Conference, 2005. INTELEC '05. Twenty-Seventh International

Conference_Location

Berlin

Print_ISBN

978-3-8007-2905-0

Type

conf

DOI

10.1109/INTLEC.2005.335157

Filename

4134396