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In this study, a novel soft-switched high step-up DC/DC converter is presented. This converter is suitable to be employed in photovoltaic and fuel cell systems. The proposed topology is based on coupled inductors and switched-capacitor techniques to provide high step-up gain. Also, due to high conversion ratio, and symmetrical structure of the proposed topology, the voltage stress of semiconductor...
In this paper, a new ZCS PWM auxiliary circuit for the interleaved boost converter is introduced which uses only one auxiliary switch to provide soft-switching condition. In the proposed interleaved converter, soft switching is obtained for all semiconductor devices. The main and auxiliary switches turn on and off under zero-current condition. Thus, the reverse-recovery losses of boost diodes are...
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