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A detailed small-signal analysis and a closed-loop control design of a naturally commutated bidirectional current-fed dual active bridge (CFDAB) dc/dc converter are presented. The proposed converter is suitable for a fuel cell vehicle (FCV) between a traction inverter and batteries. State-space averaging technique is used to derive the small-signal model. Based on the derived small-signal model, a...
This paper presents a systematic derivation of small signal model of current-fed isolated full-bridge dc/dc converter with an active clamp. Active-clamp is an active snubber helps to absorb turn off voltage spike across the power semiconductor devices, thus limiting or clamping the voltage across the devices. Inherently, it results in zero-voltage-switching (ZVS) of all devices (main and auxiliary)...
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