Circuits, devices, systems, and methods of operation for a linear output driver
US7511534B1 · kind B1 · utility
5Cited by
6References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2007 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Oct 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K19/018528
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments are described for an output driver circuit capable of maintaining a substantially constant output impedance across a wide range of output voltages. The driver circuit includes a pull-up circuit and a pull-down circuit, each having two or more current paths that either source currents to or sink currents from the output node. The addition of the third current path provides additional current such that the sum of the total currents have a magnitude that changes linearly as the output voltage at the output node is being driven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.