  A robust and portable power supply has been developed specifically for
charging linear transformer drivers, a modern incarnation of fast pulsed power
generators. It is capable of generator +100 kV and -100 kV at 1 mA, while
withstanding the large voltage spikes generated when the pulsed-power generator
is triggered. The three-stage design combines a zero-voltage switching circuit,
a step-up transformer using ferrite cores, and a dual Cockcroft-Walton voltage
multiplier. The zero-voltage switching circuit drives the primary of the
transformer in parallel with a capacitor. With this driver, the tank circuit
naturally remain in its resonant state, allowing for maximum energy coupling
between the zero-voltage switching circuit and the Cockcroft-Walton voltage
multiplier across a wide range of loading conditions.
