Temperature compensated current source
US5125112A · kind A · utility
15Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1990 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Sep 17, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/30
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature compensated current source (300) is provided that senses a first reference voltage (301) to control a second reference current (302). The current source comprises means (304, 305, 306) for deriving a first reference current (303) in response to the first reference voltage (301) and means (304, 305, 307, 309, 310, 311, 312, 313) for maintaining a desired temperature coefficient of the second reference current (302) by sensing the first reference voltage (301) to control the second reference current (302).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.