DESIGN OF A RESONANT SOFT SWITCHING POWER SUPPLY FOR STABILIZED DC IMPULSE DELIVERY

摘要

This thesis addresses the issues involved in the design and construction of a multiphaseresonant switching power supply for delivery of a high voltage, high currentstabilized DC impulse. Such a power supply may be used in place a pulse formingnetwork (PFN) to drive a high power klystron amplifier, which typically requiresvoltages near -100kV at 10s of amps of current. Unlike an LC PFN, a switchmode powersupply (SMPS) allows greater control over pulse duration while still allowing generationof longer duration pulses on the order of 10ms with constant output voltage by use offeedback regulation.Specifically, the thesis documents the results from the design of a loosely coupledboost transformer with a parallel LC resonator on the secondary, a microcontroller basedcontrol system for feedback stabilization and techniques of harmonic mitigation to reduceswitching noise on the output waveform.