Analyzing the Effect of Parasitic Capacitance in a Full-Bridge Class-D Current Source Rectifier on a High Step-Up Push–Pull Multiresonant Converter

This paper presents an analysis on the effect of a parasitic capacitance full-bridge class-D current source rectifier (FB-CDCSR) high step-up push–pull multiresonant converter (HSPPMRC). The proposed can provide voltage for 12 VDC battery using isolated transformer and FB-CDCSR. main switches diode be operated under zero-current switching condition (ZCS). advantages this technique are that it uses leakage inductance to achieve ZCS power switch, junction used design secondary side resonant circuit. A prototype HSPPMRC was built at 200 kHz fixed frequency, 340 output voltage, 250 W power. In addition, efficiency is equal 96% maximum load. Analysis indicates has significant impact operating point tank voltage. circuit verified via experimental results, which were found in agreement with theoretical analysis.