Merged H-bridge based STC for front-end VRMs
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Propose a merged H-bridge based STC to serve as the front end non-regulated stage of VRM;
Analyze and design a 6-to-1 STC with ZCS operation;
A hardware prototype that converts 48 V to 8 V is designed and tested. The maximum output current can reach 28 A, and the peak efficiency is 97.11%.