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Title:
POWER-SUPPLY CONTROL SYSTEM FOR ELECTRICAL EQUIPMENT AND WASHING MACHINE
Document Type and Number:
Japanese Patent JP2013059202
Kind Code:
A
Abstract:

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.


Inventors:
HOSOITO TSUYOSHI
NISHIMURA TAKAHIRO
Application Number:
JP2011000196051
Publication Date:
March 28, 2013
Filing Date:
September 08, 2011
Export Citation:
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Assignee:
TOSHIBA CORP
TOSHIBA CONSUMER ELECT HOLDING
TOSHIBA HOME APPLIANCES CORP
International Classes:
H02M7/48; H02P3/22
Domestic Patent References:
JP2010200490A2010-09-09
JP2008243468A2008-10-09
JPH054737U1993-01-22
JP2004304926A2004-10-28
JP2007061353A2007-03-15
JPH06225543A1994-08-12
JP2008011670A2008-01-17
JP2011015579A2011-01-20
JP2010200490A2010-09-09
JP2008243468A2008-10-09
JPH054737U1993-01-22
JP2004304926A2004-10-28
Attorney, Agent or Firm:
Sato International Patent Office