Small-signal analysis of a new asymmetrical half-bridge DC-DC converter

A small signal model is developed for a new asymmetrical half-bridge (AHB) DC-DC converter using the state space averaging method. This topology offers the advantages of small transformer size, reduced output ripple current, and ZVS operation for a larger range of load variation at the expense of higher order system. The results of the analysis are verified using a 1.2 kW prototype.

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