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Analysis and design of PPFHB bidirectional DC-DC converter with coupled inductors

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3 Author(s)
Zhe Zhang ; Elektrovej, Tech. Univ. of Denmark, Lyngby, Denmark ; Thomsen, O.C. ; Andersen, M.A.E.

In this paper, a novel push-pull-forward half-bridge (PPFHB) bi-directional DC-DC converter with coupled inductors is proposed. All switches can operate under zero-voltage-switching (ZVS). The operation principle with phase-shift modulation scheme, characteristics of coupled inductors, the steady state relationship and small-signal model are analyzed. The voltage controller based on the small-signal model in z-domain is designed. A 500 W prototype controlled by TMS320F2808 DSP is implemented and tested. Experimental results show the validity of the analysis and design.

Published in:

Power Electronics and Applications, 2009. EPE '09. 13th European Conference on

Date of Conference:

8-10 Sept. 2009