ZVT‐PWM DC–DC boost converter with active snubber cell. Issue 2 (1st February 2017)

• Record Type: Journal Article
• Authors: Ting, Naim Suleyman; Aksoy, Ismail; Sahin, Yakup
• Is Part Of: IET power electronics. Volume 10:Issue 2(2017)
• Page Start: 251
• Page End: 260
• Publication Date: 2017-02-01
• Subjects: zero voltage switching -- switching convertors -- zero current switching -- PWM power convertors -- snubbers -- DC‐DC power convertors; power 500 W -- frequency 100 kHz -- ZVT‐PWM DC‐DC boost converter -- active snubber cell -- zero voltage transition pulse width modulation DC‐DC boost converter -- semiconductor device -- converter turn on mechanism -- converter turn off mechanism -- soft switching -- SS topology -- main switch -- main diode -- auxiliary switch -- auxiliary diode -- zero voltage switching -- zero current switching -- zero current transition -- light‐load conditions -- battery power source -- low‐voltage DC‐link; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2015.1052
• Languages: English
• ISSNs: 1755-4535

Abstract

Abstract : In this study, a novel zero voltage transition pulse width modulation (ZVT‐PWM) DC–DC boost converter with an active snubber cell is proposed. All of the semiconductor devices in the converter turn on and off with soft switching (SS). The main feature of the proposed converter is the absence of extra current or voltage stress on the main switch and main diode. There is also no extra voltage stress on the auxiliary switch and the auxiliary diodes. The main switch turns on with ZVT and turns off with zero voltage switching. The auxiliary switch turns on with zero current switching and turns off with zero current transition. The proposed converter smoothly operates under light‐load conditions. Having a simple structure at low cost is the main advantage of the proposed converter. This study also realises the theoretical analysis of the proposed converter. The experimental results, the operating stages and the key waveforms of the proposed converter, are given in detail for 500 W and 100 kHz switching frequency. Moreover, it is shown that the overall efficiency reaches a value of 97.8% at nominal output power. The proposed SS topology can be used in applications with the battery power source and low‐voltage DC‐link.