STABILIZED DC VOLTAGE CONVERTER WITH PROTECTIVE GEAR Russian patent published in 2000 - IPC

FIELD: electrical engineering; secondary power supplies. SUBSTANCE: device that has line rectifier with filter, single-ended adjustable changer for two outputs, two direct-connection rectifier diodes, output filter, correcting voltage regulator, control and protective system, two RS flip-flops, two AND gates, power amplifier, voltage sensor, stepless triggering unit, reference-current generator, control signal adding unit, DC generator, two integrators, two isolating diodes, clear circuit, hysteresis threshold element, second threshold element, one-shot multivibrator, and two buffer NOT gates is provided, in addition, with controllable relaxation generator as well as with third and fourth buffer NOT gates, third double-input AND gate, and double-input OR gate inserted in its control and protective system. EFFECT: improved reliability under steady state conditions upon connection to supply mains. 2 cl, 4 dwg