Voltage regulator with pass transistors carrying different ratios of the total load current and method of operation therefor
US7821240B2 · kind B2 · utility
13Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2005 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Jul 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/565
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator for providing a voltage regulated output to a load comprises a first loop and a second loop. The first loop comprises a first active device coupled to a first pass device and configured to provide a first, relatively high current output to the load. The second loop comprises a second active device coupled to a second pass device and configured to provide a second, relatively low current output to the load. This provision of two independent loops reduces the quiescent current provided by the voltage regulator under low load conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.