Investigation of ultra-high switching frequency to reduce size in rapid capacitor charging

A compact high switching frequency rapid capacitor charging supply was designed and implemented. The challenges of topology design, component selection and implementation are discussed. The end goal is a supply capable of achieving 40 kW at 40 kV on the output and 100-300 V input. The gate driver design is discussed with particular emphasis on gate voltage rise-time and propagation delay. Switching frequencies from 100 kHz to 1 MHz are explored. Transformer and output voltage multiplier designs are also described with expected performance parameters based upon computer simulations.