LOAD CURRENT FLUCTUATION PREVENTIVE DEVICE FOR SYSTEM APPARATUS AND LOAD CURRENT FLUCTUATION PREVENTIVE DEVICE FOR IMAGE-FORMING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a load current fluctuation preventive device for a system apparatus, which can suppress the load current fluctuation of the system apparatus and avoid the voltage fluctuations of a commercial power supply. ;SOLUTION: In a load current fluctuation preventive device for a system apparatus, in which a system load is connected to a DC power supply generated from an AC power supply, a seies circuit which is connected in parallel to the system load 31 and consists of a switching device 41 and a dummy load 42 and a switching device control means 43 which turns on the switching device 41 in a 1st period, while a current applied to the system load 31 is smaller than a predetermined value and turns off the switching device 41 in a 2nd period while the current applied to the system load 31 is larger than the predetermined value are provided.;COPYRIGHT: (C)1999,JPO