Differential amplifier with a current mirror circuit
US4194166A · kind A · utility
7Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Feb 1, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45381
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a differential amplifier having a current mirror circuit, the improvement where the collectors of a pair of transistors comprising the current mirror circuit are respectively connected to the bases of a pair of transistors of polarity reverse that of the current mirror transistors, the collectors of the reversed polarity transistors are connected to a power supply, the emitters of the reversed polarity transistors are connected to corresponding active elements of the differential amplifier, and resistors are respectively connected between the bases and emitters of the reversed polarity transistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.