FIELD: power supply of automatic and computer equipment systems. SUBSTANCE: power supply system has connected in series supply-line filters, switching unit, step-down transformer, rectifier unit, first-stage compensation regulators, alarm signalling units and microprocessor unit. System includes also compensation regulators of second stage with reversed feedback based on check units of minimum and maximum allowable voltages controlled by voltage bias control unit. EFFECT: improved reliability and noise immunity of power supply. 2 dwg
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