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- Title
A new family of non-isolated PWM DC-DC converter with soft switching.
- Authors
Gerami, Elham; Delshad, Majid; Amini, Mohammad Reza; Yazdani, Mohammad Ruhollah
- Abstract
In this study, a new family of soft-switching pulse-width-modulated (PWM) converters with a lossless passive snubber is introduced. The switch is turned on under zero-current switching and turned off under zero-voltage switching and all diodes turn on and off under soft switching conditions. The proposed snubber consists of two resonant inductors a resonant capacitor and three diodes which can be applied to all non-isolated DC-DC converters. A buck converter with the proposed snubber is analysed and to verify theoretical analysis, a 100 W prototype is implemented and efficiency of converter compared with hard switching counterpart. Also to confirm the effectiveness of the proposed snubber to reduce conducted electromagnetic interference (EMI), the conducted EMI of a buck converter with proposed snubber cell is compared with conventional buck converter.
- Subjects
DC-to-DC converters; PULSE width modulation; ZERO current switching; ELECTROMAGNETIC interference; SNUBBERS (Electrical engineering)
- Publication
IET Power Electronics (Wiley-Blackwell), 2019, Vol 12, Issue 2, p237
- ISSN
1755-4535
- Publication type
Article
- DOI
10.1049/iet-pel.2018.5351