一种基于双变压器的超宽输出电压范围LLC谐振变换器

This article proposes a novel dual-transformer-based LLC resonant converter with ultrawide output voltage range. The proposed converter utilizes five mosfets and four diodes to combine four operation modes, achieving a 7.5 times ultrawide output voltage range within a squeezed switching frequency range. Zero-voltage switching of all mosfets are achieved as well. A new simplified time-domain analys...