RC delay with feedback
US5793238A · kind A · utility
11Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Nov 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/133
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention concerns a delay circuit that provides a fixed amount of delay that is generally independent of process variations. An input resistance is provided that may be presented to a threshold device, such as an inverter, that may then be presented as an output. The output of the threshold device may also be presented through a feedback path comprising a capacitive device to the input of the threshold device. The feedback through the capacitive load actively resists the movement of the load. As a result, the delay provided by the circuit is generally resistant to process variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.