Using the series-parallel resonant converter in capacitor charging applications

For applications in pulse power systems, energy storage capacitors must be charged repeatedly to significant DC voltage levels (greater than 1 kV). Resonant converter topologies can be used for this purpose, and they consist of three main types: series loaded, parallel loaded, and series-parallel loaded. A circuit has been built that incorporates the third type, the concept of splitting the resonant circuit capacitance into a series component and a parallel component. The operation, control, and design of the series-parallel or hybrid resonant converter in capacitor charging applications are presented