Voltage regulator circuit with correction loop
US10866607B1 · kind B1 · utility
6Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Dec 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Techniques that can prevent the low dropout (LDO) output voltage degradation that occurs with conventional LDO regulators, even with large LDO supply variations. An LDO regulator circuit can include another loop that is much slower than the main LDO regulator loop, concentrates the load regulation, and fixes the voltage regulation runaway problem due to the large supply variation with large frequency content. The LDO regulator circuit can include a negative feedback correction loop that corrects the LDO output by, in some examples, adding sink current to the main voltage regulation loop via a programmable current sink element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.