A Novel Soft-Switched, High-Frequency, High-Efficiency, High-Current 12V Voltage Regulator - The Phase-Shift Buck Converter

摘要

This paper presents two novel soft-switched high-frequency high-efficiency, fast transient response 12V voltage regulator (VR) topologies ― the phase-shift buck (PSB) and the matrix-transformer phase-shift buck (MTPSB) ― for high current applications. They improve efficiency at high switching frequencies and also feature very simple magnetic structures. For future high-frequency, high-current 12V VRs, PSB and MTPSB converters are the cost-effective solutions. Experimental results confirm the theoretical prediction.