Oscillator selectively operable with a parallel tuned or a series tuned resonant circuit
US5982243A · kind A · utility
15Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 4, 1999 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | May 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/0258
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic oscillator of the Colpitts type with an amplifying element and a tank circuit. The tank circuit includes a parallel tuned resonant circuit, a series tuned resonant circuit and a switching circuit that selectively connects one of the resonant circuits to the tank circuit. The oscillator operates at a first frequency in the parallel tuned mode and a second frequency that is substantially twice the first frequency in the series tuned mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.