Fast regulator architecture having transistor helper
US11209848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2016 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Nov 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/565
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Apparatus and methods for assisting a voltage regulator. In an example, a voltage regulator can include an error amplifier configured to compare a reference voltage with a representation of an output voltage of the voltage regulator, an output transistor coupled to a supply voltage and configured to receive an output of the error amplifier and to provide the output voltage, and an auxiliary-current circuit including a helper transistor having a terminal coupled to the output voltage, the helper transistor configured to turn on when the output voltage drops due to current demand from the load and to provide charge current to the load in addition to current provided by the output transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.