Circuit and method for startup of a band-gap reference circuit
US7286002B1 · kind B1 · utility
19Cited by
17References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Dec 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A circuit and method for starting up a band-gap reference circuit. In one example, a startup circuit compares a Vbg voltage output of a band-gap reference circuit to a voltage (such as Vbe) across a transistor in order to selectively control whether to inject current into the band-gap reference circuit during startup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.