A Three-Winding Coupled-Inductor High Step-Up Boost Converter with an Active-Clamp Circuit (original) (raw)

2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), 2021

Abstract

A new high step-up boost converter with an active clamp circuit to eliminate voltage spike caused by leakage inductor is introduced in this paper. The introduced power converter has a high voltage gain for variable input voltage from 48V to 80V. Since both main and auxiliary switches turn on with zero voltage switching (ZVS) and all the diodes turn off under zero current switching (ZCS) condition, switching losses and EMI noises are strongly degraded. Therefore, the converter’s efficiency is improved significantly. Simulation results show a 96.4% peak efficiency and 95.4% average efficiency. The proposed topology is suitable for low-input-voltage and low-output power applications such as solar panels or fuel cells applications.

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