Semiconductor timer
US4584494A · kind A · utility
19Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1983 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Dec 29, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0231
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor timer has a first MOS capacitor, a charge circuit for charging the first MOS capacitor, and a discharge circuit for discharging the first MOS capacitor. At least one of the charge and discharge circuits includes a transistor connected to the first MOS capacitor in series, and a second MOS capacitor connected to the gate of the transistor. The second MOS capacitor receives clock pulses and intermittently turns on the transistor in response to the clock pulses to gradually charge or discharge the first MOS capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.