Titre : Unified Approach to Developing Single-Stage Power Converters

Auteurs : CHRISTOPHER J. COMP, TSAI-FU WU Member IEEE, TE-HUNG YU National Chung Cheng University Taiwan

Abstract :
A unified approach to developing single-stage power converters which can fulfill multiple functions is presented.
Four synchronous switches corresponding to the four common node types of two active switches are introduced.
The approach is then to replace the active switches in multistage converters (in cascade or cascode connection)
with one or several of the synchronous switches and their degenerated versions to form a single-stage converter.
Illustrations of using these switches to develop single-stage converters are presented. These are started with the
development of the well-known single-stage switch-mode converters (SMCs), buck-boost, Cuk, sepic, and Zeta (also named
dual sepic), from the basic converters, buck and boost. Then, synthesis and applications of other single-stage
converters are addressed. Due to increased component stresses, the developed single-stage converters are primarily
suitable for applications with moderate power levels.

Info : Manuscript received May 8, 1996; revised November 18, 1996. IEEE Log No. T-AES/34/1/00190

This work was supported by the National Science Council, R.O.C., Project NSC 86-2213-E194-023.

Address : Power Electronics Applied Research Laboratory,
Department of Electrical Engineering, National Chung Cheng
University, Ming-Hsiung, Chia-Yi, Taiwan, R.O.C.

0018-9251/98/$10.00

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