ADC collects raw voltage and current data and processes the data

To address this, this paper proposes a Buck-Boost multi-module parallel rectifier topology based on SiC-MOSFETs. Firstly, leveraging the inherent fast dynamic response characteristics of Buck-Boost circuits, the direct parallel connection of multiple modules multiplies the output current and charging power, achieving millisecond-level pre-charging of the energy storage capacitor.

Secondly, a multi-module interleaved phase-shifted frequency multiplication control strategy is introduced, effectively increasing the equivalent switching frequency and significantly reducing the output ripple amplitude. Furthermore, the adoption of SiC-MOSFETs instead of traditional silicon devices significantly reduces switching losses and enhances system efficiency. Experimental results demonstrate that the proposed topology can complete the rapid charging of the energy storage capacitor within 0.5 ms while maintaining the steady-state output voltage ripple below 0.7 V. Additionally, this modular architecture supports flexible expansion of power levels, offering a viable technical pathway for front-end rectifier systems in pulsed power applications requiring both high dynamic response and high precision within advanced industrial equipment and electrification systems.