Voltage regulator operable to switch between a two-stage structure operation and a three-stage structure operation
US8436603B2 · kind B2 · utility
1Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2010 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jul 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45648
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Provided is a voltage regulator having a structure in which an output terminal of a first differential amplifier circuit is connected to a second differential amplifier circuit to control an output transistor by the second differential amplifier circuit. When low current consumption is required, the first differential amplifier circuit is suspended. When high-speed response is required, the first differential amplifier circuit is activated. The low-current consumption operation and the high-speed operation are switched with a minimum circuit area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.