| US 7,586,723 B2 | ||
| Power source fault detection apparatus, program, and method | ||
| Fumio Ichikawa, Kawasaki (Japan); and Naoki Hayashi, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on May 25, 2006, as Appl. No. 11/420,378. | ||
| Claims priority of application No. 2006-036528 (JP), filed on Feb. 14, 2006. | ||
| Prior Publication US 2007/0188956 A1, Aug. 16, 2007 | ||
| Int. Cl. H02H 3/20 (2006.01) | ||
| U.S. Cl. 361—91.1 | 10 Claims |
| 1. A fault detection method of a power source that includes a plurality of power source units and a power receiver having
a plurality of power receiving units specified by a plurality of addresses, the method comprising:
supplying a periodic current periodically repeatedly turning on and off from the power source to the power receiver;
judging the power source to be defective when the output voltage of the power source exceeds a specified threshold value;
specifying an address of the power receiver; and
supplying the power receiving unit corresponding to the specified address with a current of an on period of the periodic current
to detect trouble of any power source unit corresponding to each power receiving unit.
|