High accuracy, high impedance differential to single-ended current converter
US4879523A · kind A · utility
3Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Nov 18, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/3067
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A correction circuit is provided to improve current accuracy by sensing the error current of a first variable current source and substracting it from the output of a second variable current source. It also increases output impedence by sensing incremental output current and cancelling its effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.