Using of high-frequency magnetic amplifier in switch mode DC power supplies

In this paper the new methods of switch mode DC power supply (SMPS) designing on the high level of load current, that are based on use of high-frequency amorphous materials with a rectangular hysteresis loop (RHL), are described. The principle of operation of voltage regulator with the high-frequency magnetic amplifiers is explained. Their advantages are adduced in comparison with transistor analogs. The structure of multichannel SMPS with equivalent and independent output channels is shown. The features of the high-frequency non-regulated transistor inverter operation are described. The method of inclusion on parallel operation of separate SMPS is offered. The main specifications of multioutput SMPS and also examples of its designing for computer facilities are adduced.