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Quasi-resonant parallel DC link circuit for high-frequency DC-AC inverters

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2 Author(s)
Sikorski, A. ; Tech. Univ. of Bialystok, Poland ; Citko, T.

The new simple configuration of a quasi-resonant circuit used to switch an inverters' transistors with minimal power losses is presented. This circuit operates only at the moments of the transistors' commutation. The additional input capacitor and a suitable simple method of system control enables bidirectional power flow and limits the overvoltage to the level 1,2÷1,3 of source voltage. The theoretical study of the process of transistors' commutation in different possible conditions of work confirmed by laboratory investigations is the main subject of this article

Published in:

Power Electronics and Applications, 1993., Fifth European Conference on

Date of Conference:

13-16 Sep 1993