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Application of the ZVS-PWM commutation cell to a full-bridge DC-DC converter

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2 Author(s)
Martins, D.C. ; Dept. of Electr. Eng., Univ. Fed. de Santa Catarina, Florianapolis, Brazil ; Castaldo, F.C.

This paper presents the analysis and design procedures of a new DC-DC full bridge pulse-width modulation (PWM) converter, using the zero voltage switch (ZVS)-PWM commutation cell to achieve soft switching. Experimental results obtained from a laboratory prototype rated 1500 W are also presented. It is demonstrated that the inclusion of the auxiliary switches does not modify the PWM switching pattern. Bench tests on the prototype confirm that the proposed circuit exhibits high efficiency and behaves as a constant voltage source over an extended power output range

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Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on  (Volume:46 ,  Issue: 3 )