Current amplifier
US4485352A · kind A · utility
5Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Aug 30, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/343
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A current amplifier uses a current mirror arrangement as an operational amplifier whose output has limited swing. The limited swing is achieved through a plurality of series connected diodes connected to a control input of the amplifier and to the output of the operational amplifier. The control input is coupled through a transistor to inhibit the output of the current mirror arrangement. The output node is coupled to an output for the current amplifier through a Darlington arrangement which provides high current gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.