An efficient 600 Watt high voltage capacitor multiplier

Abstract

A high voltage dc power supply system is presented that utilizes a “nondissipative” type and therefore highly efficient capacitor multiplier in its output stage. This capacitor multiplier is an integral part of a Schwarz converter employing series resonant circuits for transfer and. control of power. An internal inverter frequency of 30 kHz enhances the power density of the dc converter model of the here presented type. This model provides 16.5 kV for the collector circuit of a traveling wave tube (TWT) for a space borne radar system. The presentation is supported by experimentally acquired data to substantiate the achieved improvement of efficiency. The improved high voltage power supply should lessen the problems associated with high voltage transformers and allow the construction of efficient and reliable “dry type” voltage scaling systems for space, air, terrestrial and marine applications.