Jun-jie Zhu, Qinsong Qian, Shengli Lu, Weifeng Sun
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A Phase-shift Single Ful1-bridge (PSSB) Converter with Three Shared Leading-legs
This paper proposes a novel PSSB converter with three shared leading-legs. The ZVS of all the primary-side switches can be realized with wide conversion range and full load range. Moreover, the effective duty cycle has nothing to do with the dead-time. Thus, the PSSB would be useful for high switching frequency application. A 100W PSSB converter has been made with GaN transistors and planar transformers to verify the characteristics of PSSB. The experimental results show that the PSSB converter can achieve a peak efficiency of 93.8% when the switching frequency is 300kHz.
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