Demodulator circuit using gyrator circuit
US5793251A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Dec 4, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/50
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A demodulator circuit includes a gyrator circuit forming a derived equivalent inductance which is used in a demodulating circuit. The gyrator circuit has a first operational transconductance amplifier and a second operational transconductance amplifier, wherein a second input terminal of the first operational transconductance amplifier is connected to a first output terminal of the second operational transconductance amplifier. A second output terminal of the first operational transconductance amplifier is connected to a second input terminal of the second operational transconductance amplifier. Both of the second input terminal of the first operational transconductance amplifier and the second input terminal of the second operational transconductance amplifier are grounded via a constant dc voltage. A first output terminal of the first operational transconductance amplifier is connected to a first input terminal of the second operational transconductance amplifier. A capacitor is connected between the first and second output terminals of the first operational transconductance amplifier. A first input terminal of the first operational transconductance amplifier serves as an input t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.