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Isolated SEPIC DC–DC Converter With Ripple-Free Input Current and Lossless Snubber.
- Source :
- IEEE Transactions on Industrial Electronics; Feb2018, Vol. 65 Issue 2, p1254-1262, 9p
- Publication Year :
- 2018
-
Abstract
- This paper proposes an isolated single-ended primary-inductor converter (SEPIC) dc–dc converter with ripple-free input current and lossless snubber. The proposed converter is based on a conventional isolated SEPIC converter to enable electrical isolation and high voltage gain using a coupled inductor. The input current ripple is significantly reduced by utilizing an auxiliary circuit that also functions as a lossless snubber circuit with an additional diode. Moreover, the maximum switch voltage stress is clamped to a low voltage by the snubber circuit. Therefore, a low voltage rating <sc>mosfet</sc> that has low $R_{{\rm{DS(on)}}}$ can be utilized as a main switch device. Hence, the total power efficiency is improved. Experimental results from a 100 W prototype, which are presented to verify the theoretic analysis and performance of the proposed converter. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 02780046
- Volume :
- 65
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Industrial Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 126820604
- Full Text :
- https://doi.org/10.1109/TIE.2017.2733440