Design and Analysis of a Boost Zero Voltage Conversion PWM Converter with PFC

The article delves into the intricacies of designing and analyzing a boost zero voltage conversion PWM converter with power factor correction (PFC). It begins by critiquing traditional boost PFC circuits, highlighting their limitations such as significant voltage and current stress on components and high switching losses. The proposed solution involves integrating an auxiliary resonant network to achieve zero voltage switching, thereby mitigating these issues. The main circuit topology and working principle are thoroughly explained, detailing how the resonant network interacts with the main and auxiliary switches to achieve zero voltage transition. The article also covers the design of key parameters for the resonant network and the drive circuit, ensuring optimal performance. Experimental validation using PSIM simulation software is presented, demonstrating the circuit's ability to reduce switching losses and improve power factor. The results show a stable output voltage with minimal ripple and a power factor close to unity, making this converter highly efficient and reliable for various high-power applications.