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Abstract
In this work, based on the duty‐cycle‐shifted‐PWM half‐bridge converter, a zero‐voltage‐switching‐PWM (ZVS‐PWM) half‐bridge converter is proposed. Both main switches of the proposed converter achieve zero‐voltage‐switching and the converter uses constant‐frequency operation. The small‐signal mathematical model for the ZVS‐PWM half‐bridge converter is derived. Notably, it is verified that the dynamical behavior of the ZVS‐PWM half‐bridge converter is better than that of the conventional PWM half‐bridge converter from a system point of view. The accuracy of theoretical results is verified by simulation and experimental results. A classical controller is then designed to achieve fast output voltage regulation despite variations in line voltage and load resistance.
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