Apparatus for a synthesized reactance controlled oscillator usable in a phase locked loop
US5596301A · kind A · utility
5Cited by
6References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1995 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | May 4, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/03
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The output frequency (14) of an oscillator circuit (10) can be controlled by replacing at least one of the reactive components (40), such as a capacitor or inductor, with a synthesized element (22). The synthesized element creates a signal that corresponds to the response of the reactive component it is replacing. The synthesized element may be a current source (44), such as a field effect transistor, that is capable of operating at low voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.