Temperature compensated voltage reference
US4633165A · kind A · utility
20Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1984 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Aug 15, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S323/907
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature compensated voltage reference circuit in which a compensation current is generated by establishing a current through a passive impedance element which varies with temperature in accordance with the transistor voltage equation. This current is proportionately reflected into the output impedance circuit associated with the voltage reference, where it compensates for temperature induced voltage variations. The passive impedance element is adjustable to correct for processing variations, and the compensation circuit requires no voltage supplies other than those typically provided for the reference circuit by itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.