FIELD: spaceship equipment. SUBSTANCE: device has n power supply sources, each of which is connected to output terminals through respective regulator and has two accumulating amplifiers, control unit, which is designed as pulse-width modulator, reference voltage source and regulation unit. Said power supply sources include m solar batteries, p storage batteries, k secondary power supplies. Reference voltage level for solar batteries is 
, for storage batteries 
, for secondary power supplies 
, under condition m+p+k=n, a mi=1,... v, ki=1, where s is gain of second accumulating amplifier, U is double amplitude of sawtooth voltage. EFFECT: increased efficiency of power supply due to combined use of electric power from sources with different parameters. 2 dwg
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