Low dropout regulator with control loop for avoiding hard saturation
US7170269B1 · kind B1 · utility
10Cited by
6References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 2005 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | May 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A hard saturation mode of operation can be avoided in an LDO regulator by providing an additional feedback control loop. The additional control loop cooperates with the LDO regulator's amplifier stage and output stage to maintain at least a minimum desired voltage drop across the output stage from the power supply to the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.