Power supply apparatus provided with overcurrent protection function
US7081742B2 · kind B2 · utility
9Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2005 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jun 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A series regulator for outputting a regulated voltage and a booster circuit of a charge pump type for outputting an output voltage by boosting the regulated voltage are connected in series. The series regulator is controlled so that the output voltage is maintained constant. A main circuit current of the series regulator is subject to current limitation. An excess signal commensurate of an excess of a current indicator value over a current reference value is generated. A voltage control signal is reduced in level in accordance with the excess signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.