Low dropout regulator and method for controlling the same
US10203709B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | May 18, 2018 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | May 18, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/59
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The embodiments of the present disclosure disclose a low dropout regulator and a method for controlling the same. The low dropout regulator comprises a control circuit configured to compare a output voltage with a first threshold voltage and a second threshold voltage, generate a first control signal when the output voltage is less than the first threshold voltage or greater than the second threshold voltage and a second control signal when the output voltage is greater than the first threshold voltage and less than the second threshold voltage; a digital regulator circuit configured to adjust the output voltage according to the first control signal and maintain the output voltage according to the second control signal; and an analog regulator circuit configured to output feedback current to the output terminal according to the output voltage and the reference voltage under the trigger of the second control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.