CIRCUIT FOR DRIVING DISPLAY LAMP OF ATOMIC POWER STATION

摘要

PURPOSE: A circuit for driving display lamp of atomic power station is provided to reduce circuit deterioration by suppressing internal loss and heating at output current set short-circuit, and a cost necessary for maintaining and repairing by improving the stability at a switch operation. CONSTITUTION: A constant voltage maintaining part(R1, R2) maintains an input voltage constantly. A voltage control part(R3) controls so that a voltage is not applied over a rated voltage between terminals of a regulator(10) when a power is supplied or when a load is connected. A charge discharge part(D3) rapidly discharges charges in a capacitor(C1) when an output side becomes shorted.