دانلود رایگان مقاله An Inherent Zero Voltage and Zero Current Switching Full Bridge Converter with No Additional Auxiliary Circuits
Journal of Power Electronics
An Inherent Zero Voltage and Zero Current Switching Full Bridge Converter with No Additional Auxiliary Circuits
An inherent zero-voltage and zero-current-switching phase-shifted full-bridge converter with reverse-blocking insulated-gate bipolar transistor (IGBT) or non-punch-through IGBT is proposed in this paper. This converter not only ensures that the switches in the lagging leg works at zero-current switching, but also minimizes circulating conduction loss without any additional auxiliary circuits. A 1.2 kW hardware prototype is designed, fabricated, and tested to verify the proposed topology. The control loop design procedures with small-signal models are also presented. A simple, low-cost, and robust democratic current-sharing circuit is also introduced and verified in this study. The proposed converter is a suitable alternative for compact, cost-effective applications with high-voltage input.
Key words: Full bridge, Non-Punch-Through IGBT, Phase shifted, Reverse-Blocking IGBT, Zero-voltage and zero-current switching
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