Patent ID: 6701103
Filing Date: 2004-03-02
Classification: G03G,H02J,H02M,Y02B

Abstract:
A power supply control apparatus comprising:an active filter configured to convert an AC voltage supplied from an AC power supply to a DC voltage; a DCâ€”DC converter configured to convert the DC voltage converted by said active filter to voltages at predetermined levels, and to supply the voltages respectively to a load and a load control unit that controls said load; a power supply control unit configured to control operation of said DCâ€”DC converter; and a detection unit configured to detect disconnection of the AC power supply, wherein said power supply control unit is further configured to control said DCâ€”DC converter in order to allow said DCâ€”DC converter to continue supply of the voltage to said load control unit for a predetermined time when said detection unit detects disconnection of the AC power supply.