A Study of the Influence of Circuit Components on the Dynamic Behaviour of a ZVS Phase-Shift Controlled DC-DC Converter with Synchronous Rectifier

The paper studies the influence of the added commutating inductance, ensuring ZVS conditions, on the dynamic behavior of the zero-voltage (ZVS) phase-shift controlled full-bridge (PSFB) converter.The mutual influence of the converter parasitic elements on the circuit's operation is also investigated.This analysis considers different distinct values of the commutating inductance, providing a comprehensive perspective on the system's behavior under varying conditions.The theoretical study of the ZVS-PSFB converter's open-loop main transfer characteristics is verified through simulations.The theoretical results are verified through the LTspice simulation study of the converter's operation during the abrupt load changes.