Title:
POWER SUPPLY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2006/051843
Kind Code:
A1
Abstract:
A power supply apparatus for supplying power to a computer device or the like, wherein in case of power failure, a sufficient amount of power can be supplied, the structure is simple and an excellent cost-effectiveness is achieved. The power supply apparatus comprises a rectifier (2) for rectifying an AC voltage supplied from an AC power supply source; a voltage stabilizing circuit in which a smoothing capacitor (4) connected to the rectifier is further connected in parallel to a voltage holding capacitor (6), which has a larger capacitance than the smoothing capacitor, via a resistor (8); a voltage converting circuit (14) DC/DC converts an output voltage from the voltage stabilizing circuit to a lower voltage; and a power failure detecting circuit (12) for detecting a power failure of the AC power supply source.
Inventors:
KUDO SHINJI (JP)
Application Number:
PCT/JP2005/020591
Publication Date:
May 18, 2006
Filing Date:
November 10, 2005
Export Citation:
Assignee:
KUDO SHINJI (JP)
International Classes:
H01J9/06; G01R19/165; H02J9/00; H02M7/06
Foreign References:
| JPH039144U | 1991-01-29 | |||
| JPH1014134A | 1998-01-16 | |||
| JPH09145751A | 1997-06-06 | |||
| JPH09318680A | 1997-12-12 | |||
| JPH1169662A | 1999-03-09 |
Attorney, Agent or Firm:
Dobashi, Akira (17-3 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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