A family of constant-switching-frequency quasi-square-wave converters

Author

Yang, L. ; Zhang, Y. ; Lee, C.Q.

Author_Institution

Power Electron. Res. Lab., Illinois Univ., Chicago, IL, USA

fYear

1993

fDate

14-17 Sep 1993

Firstpage

309

Abstract

A family of constant-switching-frequency boost quasi-square-wave converters is obtained by adding a second switch at different positions in the variable-frequency boost quasi-square-wave converter. The new converters still maintain the zero-voltage-switching (ZVS) in the original switch while the second switch is ZVS or zero-current-switching (ZCS) depending upon its position. The voltage stresses for both the switches will not exceed the output voltage. Analysis of the converter is conducted with the normalized state-plane trajectory. A design example based on the analystic control characteristics curves is given. Comparison of performance characteristics among these converters are presented

Keywords

power convertors; switching circuits; ZCS; ZVS; boost quasi-square-wave converters; constant-switching-frequency; normalized state-plane trajectory; performance characteristics; voltage stresses; zero-current-switching; zero-voltage-switching; Capacitors; Circuits; Resonance; Steady-state; Stress; Switches; Switching converters; Switching frequency; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1993. Canadian Conference on

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-2416-1

Type

conf

DOI

10.1109/CCECE.1993.332318

Filename

332318