| 摘要 |
PURPOSE:To prevent voltage fluctuation and/or noise trouble in a direct supply power source system by a method wherein a circuit, supplying a surge current having a high peak value generated upon starting a capacitor input type load connected in parallel, is provided. CONSTITUTION:When a capacitor input type load is connected to an AC non- service interruption power source device, a surge current having a high peak value is conducted to charge capacitors 12, 13 in the load. An inverter 1 is locked instantaneously by the operation of an overcurrent detector 23 provided in the output circuit of the inverter 1 while a control circuit 11 sends an ignition signal to gate circuits 21, 22 to put thyristors 14, 15 ON whereby an electric charge, charged in the capacitors 12, 13, is discharged to supply a peak current. |
