PARALLEL RESONANT FULL BRIDGE ISOLATED AC-DC ZVS CONVERTER.

Resonant power converters have many advantages over Pulse Width Modulation (PWM) power converters, such as lower switching losses at higher switching frequencies, easier EMI filtering, reduced component stress and higher efficiency. High switching loss considerably reduces the converter efficiency. The use of soft-switching techniques, alleviate switching loss problems and allow a significant increase in the converter switching frequency. At increased frequency the converter can employ smaller sized magnetic elements and filter components. Resonant converters eliminate most of the switching losses. The advantages of Parallel Resonant Converter (PRC) are that the output dc filter capacitor does not carry high ripple current and also it exhibits good voltage regulation. In the present work Parallel Resonant Converter (PRC) with Zero Voltage Switching (ZVS) for the 12 V DC output is designed with High Frequency (HF) and the simulation results are presented. [ABSTRACT FROM AUTHOR]