| US 7,486,061 B2 | ||
| Power supply apparatus | ||
| Kiyotaka Umemoto, Kyoto (Japan); and Ko Takemura, Kyoto (Japan) | ||
| Assigned to Rohm Co., Ltd., Kyoto (Japan) | ||
| Filed on Nov. 15, 2006, as Appl. No. 11/599,384. | ||
| Application 11/599384 is a division of application No. 10/822660, filed on Apr. 13, 2004, granted, now 7,148,667. | ||
| Claims priority of application No. 2003-111242 (JP), filed on Apr. 16, 2003. | ||
| Prior Publication US 2007/0057650 A1, Mar. 15, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G05F 1/40 (2006.01) | ||
| U.S. Cl. 323—282 | 1 Claim |
| 1. A power supply apparatus comprising:
an output current detector that produces a monitoring signal commensurate with an output current;
a comparator that changes an output level thereof according to whether or not the monitoring signal is higher than a predetermined
threshold level;
an output controller that controls an output voltage based on an output signal from the comparator;
an offsetter that gives the monitoring signal an offset; and
an output voltage comparator that receives the output current and controls the offsetter such that, as the output current
increases, the offset given by the offsetter increases and, as the output current decreases, the offset given by the offsetter
decreases.
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