Current source adapted to allow for rapid output voltage fluctuations
US5391981A · kind A · utility
8Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1992 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jun 12, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A current source delivering a constant current despite sudden voltage fluctuations which may be applied on its output. This current source includes two branches in parallel, a generating branch and a reference branch. The output current is kept constant by keeping the potential difference across the terminals of the resistors in the generating branch constant, by using a differential amplifier. All the transistors are of the NPN type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.