The Design of a Novel ZCT-PWM Converter with Reduced Circulating Current

Author

Das, Pritam ; Moschopoulos, Gerry

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont.

fYear

2006

fDate

38838

Firstpage

243

Lastpage

246

Abstract

A new zero-current switching (ZCS) pulse-width modulated (PWM) boost converter is discussed in the paper. The converter´s main power switch 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, a procedure for the design of the converter is presented and demonstrated with an example. The feasibility of the converter is confirmed with results obtained from a 50 kHz, 1 kW experimental prototype

Keywords

PWM power convertors; switching convertors; zero current switching; 1 kW; 50 kHz; ZCT-PWM converter; pulse-width modulated boost converter; zero-current switching; Chromium; Diodes; Insulated gate bipolar transistors; Pulse width modulation converters; Stress; Switches; Switching circuits; Switching converters; Voltage; Zero current switching; High-frequency power conversion; PWM converters; dc-dc converters; soft-switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on

Conference_Location

Ottawa, Ont.

Print_ISBN

1-4244-0038-4

Electronic_ISBN

1-4244-0038-4

Type

conf

DOI

10.1109/CCECE.2006.277620

Filename

4054640