Design and Testing of High-Voltage Power Supply with Rising-Edge Adaptive Modulation

For nonlinear impedance loads, controlling the output waveform quality of high-voltage pulse power supplies remains one of the primary challenges today. Deviations in waveform quality directly impact the efficiency of the load. This paper presents a high-voltage pulse power supply based on a multi-stage BUCK cascade topology. By leveraging full-solid-state devices to control multi-level voltage superposition, it achieves pulsed high-voltage output. Adjusting the trigger timing of each stage enables dynamic matching between the power supply and the load, significantly suppressing overshoot waveforms. Through customized design of multi-stage trigger delays, practical tests on a typical load demonstrate a reduction of overshoot current by over 40%, indicating promising engineering application prospects.