Network for simulating low-noise temperature resistors
US4156859A · kind A · utility
7Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1977 |
| Grant date | May 29, 1979 |
| Priority date | — |
| Expiry date | Oct 3, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/53
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A class of two-terminal active networks which simulate low-noise temperature resistors is disclosed. A single differential-input operational amplifier connected with a feedback resistor in an inverting amplifier configuration comprises the active element of the network. A dual-transformer feedback arrangement or a single transformer feedback arrangement comprises the remainder of the circuit. Either positive or negative 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.