ULTRA-HIGH GAIN DC-DC CONVERTERS BASED ON COUPLED INDUCTOR AND MULTIPLIER CELL

Chen Wenbin; Duan Hetao; Chen Hao; Liu Yuxin; Cheng Xufeng; Wang Dianlong

doi:10.19912/j.0254-0096.tynxb.2024-2225

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (4) : 704-712. DOI: 10.19912/j.0254-0096.tynxb.2024-2225

ULTRA-HIGH GAIN DC-DC CONVERTERS BASED ON COUPLED INDUCTOR AND MULTIPLIER CELL

Chen Wenbin¹, Duan Hetao¹, Chen Hao², Liu Yuxin¹, Cheng Xufeng¹, Wang Dianlong³

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Abstract

Due to the insufficient voltage boosting capability of the basic Boost converter, a quadratic DC-DC converter based on coupled inductor and multiplier cell is proposed. The converter combines the coupled inductor with the voltage multiplier cell to achieve high voltage gain at low and medium duty cycles. The passive clamp circuit is used to absorb the voltage spike generated by the leakage inductance and reduce the energy loss. The two switches operate synchronously, the control is simple, and they share the voltage stress, so that the voltage stress on each switch is low. The topology, working principle and steady-state analysis of the converter are introduced. Finally, a 200 W experimental prototype is built, which achieves a voltage gain of 20 at 0.4 duty cycle and a maximum efficiency of 98.41%, proving the feasibility of the converter.

Key words

DC-DC converter / coupled circuit / photovoltaic effect / transformer winding / quadratic / high gain

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Chen Wenbin, Duan Hetao, Chen Hao, Liu Yuxin, Cheng Xufeng, Wang Dianlong. ULTRA-HIGH GAIN DC-DC CONVERTERS BASED ON COUPLED INDUCTOR AND MULTIPLIER CELL[J]. Acta Energiae Solaris Sinica. 2026, 47(4): 704-712 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2225

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