A Novel Multi-Element Resonant Converter with Self-Driven Synchronous Rectification

Jing-Yuan Lin, Yi-Feng Lin and Sih-Yi Lee
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Jing-Yuan Lin: Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
Yi-Feng Lin: Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
Sih-Yi Lee: Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan

Energies, 2019, vol. 12, issue 4, 1-10

Abstract: This paper proposes a novel multi-element resonant converter with self-driven synchronous rectification (SR). The proposed resonant converter can achieve a zero-voltage-switching (ZVS) operation from light load to full load, meanwhile, the zero-current-switching (ZCS) can achieve rectifiers of a secondary-side. Therefore, the switching losses can be significantly reduced. Compared with an LLC resonant converter, the proposed resonant converter can be effective to decrease the circulating energy through the primary-side of the transformer to output a load and provide a wide voltage gain range for over-current protection as well as decreasing the inrush current under the start-up condition. Moreover, the proposed converter uses a simple current detection scheme to control the synchronous rectification switches. A detailed analysis and design of this novel multi-element resonant converter with self-driven synchronous rectification is described. Finally, a DC input voltage of 380-V DC and an output voltage/current of 12-V DC /54-A for the resonant converter prototype is built to verify the theoretical analysis and performance of the proposed converter.

Keywords: multi-element resonant; zero-voltage-switching (ZVS); zero-current-switching (ZCS); synchronous rectification (SR) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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