Bandgap reference circuit with a pre-regulator
US6542027B2 · kind B2 · utility
7Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A bandgap reference circuit has a pre-regulator that achieves a low temperature coefficient through the use of a first component that generates a first voltage having a negative temperature coefficient and a second component coupled in series to the first component and which generates a second voltage having a positive temperature coefficient. This low temperature coefficient in the pre-regulator allows the bandgap reference circuit to output the bandgap voltage VBG with a low temperature coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.