Difference amplifier circuit
US5021745A · kind A · utility
5Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1989 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Dec 21, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7221
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A difference amplifier circuit comprises two series combinations coupled in parallel between a first source of voltage and a common node, an activation transistor responsive to a control signal for propagating a second voltage level to the common node and a channel conductance regulating circuit responsive to the control signal and operative to regulate channel conductances of the respective series combinations, so that the channel conductances are easily fallen within a target range through the function of the regulating circuit even if the process conditions are fluctuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.