A New Soft-Switched ZCZVT-PWM DC-DC Boost Converter

Year 2018, Volume: 22 Issue: 2, 435 - 442, 15.08.2018

Yakup Sahın Naim Suleyman Tıng

https://izlik.org/JA63CJ23EZ

Abstract

In this paper, a new soft-switched zero-current transition and zero-voltage transition (ZCZVT) converter is proposed for family pulse width modulation (PWM) DC-DC converters. The proposed new converter assures the main switch turning on under zero-voltage transition and turning off under zero-current transition. The proposed new converter also decreases electromagnetic interference noises and operates under soft switching in a wide input voltage range. There is no additional voltage or current stress on the main devices. The proposed converter has low cost and simple control and structure. The theoretical analysis of the converter is clarified and the operating intervals are given in detail. The experimental results of the converter are obtained by a prototype with 500 W and 100 kHz. The overall efficiency of the proposed converter is 98.5% at nominal output power.

Keywords

Active snubber cell , DC-DC converter; Zero-voltage transition; Zero-current transition; Soft switching

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