Differential amplifier apparatus
US5095282A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Aug 23, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45959
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Differential amplifier apparatus comprises a summing and inverting network for developing an output signal of which the magnitude is proportional to the common mode component of an input signal received at first and second input terminals of the apparatus and of which the polarity is opposite the polarity of the common mode component. A summing network is connected to the first and second input terminals and to the output of the summing and inverting network and has first and second intermediate nodes. A first differential amplifier has a non-inverting input connected to a first intermediate node of the summing network, and a second differential amplifier has a non-inverting input connected to the second intermediate node of the summing network. A bridging resistor is connected between the inverting inputs of the first and second differential amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.