CHARGER FOR CAPACITIVE ELECTRICAL ENERGY STORAGE DEVICE Russian patent published in 1995 - IPC

FIELD: electrified transportation facilities. SUBSTANCE: charger that has storage capacitor, power switch, voltage monitoring unit, comparison unit, generator, and shaper is provided, in addition, with RS flip-flop, pulse counter, and auxiliary switching unit. During charging flip-flip is reset, switch is turned on by generator puses, and storage capacitor is charged by pulses. Each time as count modulo is attained, counter yields pulses at its output which arrives at shaper and the latter enable operation of auxiliary switches and flip-flop. Voltage is built up across resistive divider; if storage unit is charged to specified value, flip-flop output voltage corresponds to logical 1 and generator is turned off through flip-flop. EFFECT: improved design. 2 cl, 1 dwg