To provide a power-supply control system for electrical equipment that allows the standby power to be zero by a more simple configuration and control.
A power-supply control system for electrical equipment includes: an AC power supply; a DC power-supply circuit that generates a DC power supply by rectifying the AC power supply by a rectifier circuit and smoothing the rectified power supply by a smoothing capacitor; an inverter circuit to which the DC power supply is applied; a relay that is disposed between the AC power supply and the DC power-supply circuit and turns on by being supplied with a driving current; a control circuit that controls the supply of the driving current and controls the inverter circuit; a control power-supply circuit that steps down the DC power supply and generates a control power supply supplied to the control circuit; a power-supply off switch for inputting a power-supply off signal to the control circuit to turn off an operating power supply of the electrical equipment; and discharge means for discharging residual charges in the smoothing capacitor. When the power-supply off signal is inputted, the control circuit turns off the relay and then discharges the residual charges in the smoothing capacitor via the discharge means.
NISHIMURA TAKAHIRO
TOSHIBA CONSUMER ELECT HOLDING
TOSHIBA HOME APPLIANCES CORP
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