LLC Step Down Converter with Ultra-wide Input Voltage Range
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- The wide voltage range of the Li-ion battery challenges the 48V power supply for vehicle electrical appliances;
- Utilize full-bridge and half-bridge reconfiguration to squeeze the frequency modulation range of LLC resonant converter under ultra-wide input voltage range, thereby improving the converter efficiency;
- Use the synchronous rectification technology based on the drain-source voltage detection method to reduce the secondary side rectification loss.