Current mirror with improved input voltage headroom
US5394079A · kind A · utility
8Cited by
4References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Apr 27, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F3/267
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A novel current mirror is taught which provides improved input voltage headroom. The current mirror provides for the ratioed current mirroring of an input current supplied by a current source while providing an increased voltage level to that current source as compared with prior art current mirrors. This provides a significant improvement over prior art current mirrors which are likely to provide an insufficiently high voltage level to the current source to allow its proper operation, particularly with the trend toward lower supply voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.