Voltage regulator startup method and apparatus
US7855542B2 · kind B2 · utility
1Cited by
8References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2007 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Jun 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/468
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator circuit comprises an amplifier, bias network and startup circuit. The bias network is configured to generate a bias voltage for setting a bias current in the amplifier. The startup circuit is configured to mirror the amplifier bias current and to assist the bias network in setting the amplifier bias current based on the mirrored amplifier bias current until the bias voltage approximates a desired level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.