Gain control systems
US4403199A · kind A · utility
12Cited by
1References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Mar 26, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G1/0005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved gain control circuit of the "eight transistor gain cell" type is disclosed. The improvements comprise (1) means for operating the circuit as a Class AB amplifier and (2) means for reducing the distortion component in the output signal due to the inherent parasitic base and emitter resistances of the transistors of the gain cell of the gain control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.