Abstract
Boost dc/dc converters are widely used in renewable energy systems. With growing demand for high efficiency and high voltage gain, many new topologies have been published. This article proposes a novel zero current switching (ZCS) boost converter with a tapped inductor and active edge-resonant cell (AERC). To achieve high voltage gain, the tapped inductor was implemented in the structure of the converter, and by employing an AERC, ZCS of transistors was attained. Subsequently, by employing a resonant operation current, overshoots by leakage inductance were eliminated. This article presents an analysis, mathematical derivations, and laboratory test results. Finally, a 30-50 V input, 380 V output, and 750 W output power laboratory model operating with 45-100 kHz switching frequency was built and tested. The maximum reported efficiency was 96.6%. Soft switching of semiconductors was achieved in the whole output power range.
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