Temperature compensated reference current generator
US5783936A · kind A · utility
24Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Dec 3, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature compensated resistance current generator. The generator provides temperature compensated reference current in a digital CMOS environment where resistors with positive temperature coefficients are not available, and where temperature coefficients are large. The current generator has two current sources and a subtraction circuit which subtracts the current from one current source from the current from the other current source to create a primary current. A proportionality circuit multiplies the primary current by a constant to produce the generator output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.