Voltage regulator using a multi-power and gain-boosting technique and mobile devices including the same
US9933799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Sep 21, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator includes an error amplifier configured to receive a first voltage through a first node as an operating voltage, to amplify a difference between a reference voltage and a feedback voltage, and to output an amplified voltage; a power transistor connected between a second node through which a second voltage is supplied and an output node of the voltage regulator; and a switch circuit configured to select a level of a gate voltage supplied to a gate of the power transistor and level of a body voltage supplied to a body of the power transistor in response to a first power sequence of the first voltage, a second power sequence of the second voltage, and an operation control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.