Quasi-Resonant Single-Switch High-Voltage-Gain DC-DC Converter with Coupled Inductor and Voltage Multiplier Cell

Giordano Luigi Schiavon, Eloi Agostini () and Claudinor Bitencourt Nascimento
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Giordano Luigi Schiavon: Department of Electrical Engineering, Federal University of Technology–Parana–UTFPR, Ponta Grossa 84017-220, PR, Brazil
Eloi Agostini: Department of Electrical Engineering, Federal University of Technology–Parana–UTFPR, Ponta Grossa 84017-220, PR, Brazil
Claudinor Bitencourt Nascimento: Department of Electrical Engineering, Federal University of Technology–Parana–UTFPR, Ponta Grossa 84017-220, PR, Brazil

Energies, 2023, vol. 16, issue 9, 1-14

Abstract: This paper introduces a quasi-resonant high-efficiency high-step-up DC–DC converter requiring a reduced number of components. The proposed circuit uses a coupled inductor associated with voltage multiplier cells to ensure high-voltage-gain operation without the necessity of an extremely high number of turns ratio. Quasi-resonant operation guarantees zero current switching (ZCS) for some diodes of the converter. A detailed steady-state analysis is carried out aiming at the adequate design of the circuit. Experimental results taken from the testing of a 400 W prototype operating in closed loop with an input voltage range of 25–48 V, output voltage of 400 V and switching frequency of 100 kHz validate the analysis carried out and demonstrate the feasibility of the proposed converter.

Keywords: DC–DC converter; high voltage gain; coupled inductor; voltage multiplier cell (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: 2023
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