Driver circuit and a mixer circuit receiving a signal from the driver circuit
US8493136B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2011 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Nov 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0074
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A driver circuit for supplying a drive signal to a mixer circuit comprising a first and second circuit branch and an operational amplifier. The first circuit branch receives an input signal and a bias signal. The second circuit branch receives the input signal. The operational amplifier has a first input connected to a junction node of the first circuit branch and a second input connected to a junction node of the second circuit branch. The operational amplifier is arranged to provide an operational amplifier output signal a second component of the second circuit branch so that a voltage at the junction node of the second circuit branch is equal to a voltage at the junction node of the first circuit branch. The voltage is dependent on the input signal and providing the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.