Multi-output-resistance switch driver circuits
US8638156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Oct 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/356104
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch circuit can include an impedance selection switch and a multi-output-resistance switch driver. The impedance selection switch can electrically connect an impedance to an input of an amplifier in response to a driver output signal, and include at least one transistor. The multi-output-impedance switch driver may provide the driver output signal to the switch, and have a first, relatively higher output resistance when providing a first logic state of the driver output signal to turn on the switch, and a second, relatively lower output resistance when providing a second logic state of the driver output signal to turn off the switch. The ratio of the first output resistance to the second output resistance can be greater than a selected predetermined ratio value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.