Logarithmic amplifier utilizing positive feedback
US4418317A · kind A · utility
7Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1981 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | May 18, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-linear amplifier circuit that may be used to provide a logarithmic amplification characteristic. The circuit includes an amplification stage employing positive non-linear feedback for low level input signals to reduce the input capacitance of the amplifier. For large level input signals the feedback is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.