Voltage regulator with n-type power switch
US11709515B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2021 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Sep 20, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/59
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator and a corresponding method of regulating a voltage are presented. The voltage regulator includes an N-type power switch, an error amplifier, and a switch capacitor circuit. The switch capacitor circuit includes a first capacitor coupled to a network of switches, the switch capacitor circuit has a first port coupled to an output the error amplifier, a second port coupled to an output terminal of the power switch, and a third port coupled to a control terminal of the power switch. The switch capacitor circuit is iteratively operable between a first phase and a second phase. In the first phase the first port is coupled to ground via a path comprising the first capacitor, and in the second phase the second port is coupled to the third port via a path comprising the first capacitor. The voltage regulator may be implemented as a low dropout regulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.