Current pumped voltage divided absorbor
US4242656A · kind A · utility
2Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1979 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/46
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A two-terminal active network which simulates a low noise-temperature resistor is disclosed. In a preferred embodiment, a pair of operational amplifiers, each connected in the manner of a "current pump," comprises the active elements of the network. A resistive voltage divider network provides both positive and negative feedback to the operational amplifiers. Simulated resistors can be obtained with a wide range of equivalent resistance values and effective noise temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.