A Real-Time Digital Control with Variable Switching Frequency for ZVS Four-Switch Converter

A new variable switching frequency real-time digital control method for a four-switch converter with zero voltage switching (ZVS) is presented in this paper. To overcome the drawbacks of conventional fixed-frequency techniques, the suggested control method dynamically modifies the switching frequency to maximize efficiency and reduce switching losses. To achieve precise regulation and adaptive operation, a microcontroller or FPGA is used to implement a real-time digital control system. The effectiveness of the suggested strategy is confirmed by simulation and experimental results, which show enhanced efficiency, transient response, and thermal management.