DC POWER SUPPLY DEVICE, CURRENT STABILIZING CIRCUIT FOR DC POWER SUPPLY DEVICE, AND METHOD FOR REDUCING NOISE OF POWER-SUPPLY LINE

摘要

A DC power supply device includes a switching power supply and a current stabilizing circuit connected in a pre-stage or a post-stage of the switching power supply. The DC power supply voltage device is configured to receive an input DC voltage from a DC power source via a power-supply line, convert the input DC voltage into a different DC voltage, and output the converted DC voltage.