Signal delay circuit using charge pump circuit
US5059838A · kind A · utility
20Cited by
11References
64Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Jan 17, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2005/00195
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A delay circuit delays an input signal having a predetermined frequency by a time corresponding to a control signal. A delay amount detector detects a signal delay amount of the delay circuit. A charge pump circuit generates a DC voltage corresponding to a pulse width ratio between the input signal and a detection signal of the delay amount detector. This DC voltage is fed back to the delay circuit as a control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.