DEVICE TO CHARGE CAPACITIVE STORAGE CIRCUIT Russian patent published in 2004 - IPC

FIELD: electrical engineering, power supply of equipment utilizing energy of capacitor banks charged beforehand.

SUBSTANCE: technical result of invention lies in increased accuracy of control over charging voltage thanks to reduced time of reaction of control system and coded control over reference voltage. To achieve this technical result known charger for charging capacitive storage circuit has series resonance voltage converter connected to capacitive storage circuit and control circuit comprising relay modulator built on basis of shift register, starter connected with output to controlling input of modulator and source of reference voltage connected to first comparison input of modulator, second comparison input of it being connected to capacitive storage circuit. Controlling output of modulator is connected to input of converter and command output of modulator is connected to controlling input of recorder. Novelty of proposed device to charge capacitive storage circuit is that controlling output of modulator is additionally connected to reset input of starter. Apart from the mentioned source of reference voltage is built on basis of circuit forming signal across digital-to-analog converter which amplitude is determined by code number across its output.

EFFECT: increased accuracy of control over charging voltage.

2 cl, 4 dwg