Constant edge rate output driver
US6888388B1 · kind B1 · utility
6Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | May 3, 2005 |
| Priority date | — |
| Expiry date | Aug 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/145
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a circuit and method for adjusting rise-and-fall-time changes in an output driver signal due to changes in temperature, process or voltage, the driver output voltage is monitored and current flow through a constant load resistor adjusted as the voltage changes. The current may be adjusted by controlling the gate-source voltage on a transistor. The gate voltage on the transistor may also be used to adjust the power supply to pre-drivers of the output driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.