Dual loop low dropout regulator system
US10488875B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2018 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Aug 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A low dropout (LDO) regulator system is provided. The LDO regulator system includes a first amplifier circuit, a second amplifier circuit, and a switch circuit. The first amplifier circuit has a first input coupled to receive a reference voltage and an output. The second amplifier circuit has a first input coupled to the output of the first amplifier and is configured to provide a predetermined voltage at a first output. The switch circuit is coupled between the first output of the second amplifier circuit and a second input of the first amplifier circuit and is configured to cause an open circuit in a first feedback path from the first output of the second amplifier circuit to the second input of the first amplifier circuit based on a control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.