Voltage regulator
US8026708B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 24, 2009 |
| Grant date | Sep 27, 2011 |
| Priority date | — |
| Expiry date | Mar 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator stably operates even when an operating current of a differential amplifier circuit is increased according to an output current. In the voltage regulator, a current mirror circuit for detecting the output current and increasing the operating current of the differential amplifier circuit is provided with a function of providing a delay according to an operation state of the voltage regulator. A simultaneous action of a main feedback system and a feedback system for the output current is eliminated, whereby an internal operating point can be prevented from fluctuating and therefore stability of the operation is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.