Micropower delay circuit
US6163196A · kind A · utility
1Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1998 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Apr 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00202
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
To generate a signal delay, a current source, a reference voltage generator and a comparator are turned on. Once turned on, the current source raises the voltage across an initially discharged capacitor to a minimum required threshold. The comparator then compares the capacitor voltage to the reference voltage thereby to generate the delay signal. Thereafter, the current source, the reference voltage generator and substantial blocks of circuitry in the comparator are switched off to reduce quiescent power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.