DOUBLE-COUPLED INTERLEAVED BUCK-BOOST HIGH GAIN CONVERTER

Rong Desheng; Zhang Yubo; Sun Xuanjin; Chen Liang

doi:10.19912/j.0254-0096.tynxb.2024-0453

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (7) : 674-681. DOI: 10.19912/j.0254-0096.tynxb.2024-0453

Special Topics of Academic Papers at the 99th Annual Meeting of the China Association for Science and Technology

DOUBLE-COUPLED INTERLEAVED BUCK-BOOST HIGH GAIN CONVERTER

Rong Desheng, Zhang Yubo, Sun Xuanjin, Chen Liang

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Abstract

This paper enhances DC-DC converter voltage gain by integrating two buck-boost converters with coupling inductors and voltage-multiplier circuits, while clamping circuits absorb leakage inductance to form a dual-coupled interleaved topology. The design reduces power switch voltage stress and avoids extreme duty-cycle/turn-ratio operation. Detailed continuous conduction mode （CCM） analysis with theoretical stability criteria derivation and a 250 W experimental prototype collectively validate the proposed methodology.

Key words

interleaved parallel / coupled inductor / voltage multiplier / topology combination / voltage stress / gain regulation

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Rong Desheng, Zhang Yubo, Sun Xuanjin, Chen Liang. DOUBLE-COUPLED INTERLEAVED BUCK-BOOST HIGH GAIN CONVERTER[J]. Acta Energiae Solaris Sinica. 2025, 46(7): 674-681 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0453

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