Method and apparatus for enabling a voltage regulator
US7719244B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2007 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Mar 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/565
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator circuit is operated by enabling a bias network operable to set a bias current in an amplifier. A startup circuit is connected to the bias network, the startup circuit operable to assist the bias network in setting the amplifier bias current during a startup period. The startup circuit is disconnected from the bias network responsive to the startup period lapsing while the voltage regulator circuit is enabled for resetting the startup circuit to an initial state. The bias network may be disabled to reduce the amplifier bias current. Subsequent re-enablement of the bias network is prevented until the amplifier is reliably disabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.