Oscillator with power conservation mode
US6163228A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1999 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Jul 15, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/0208
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillator having a tank circuit, an amplifier circuit and a switching circuit. The switching circuit switches the oscillator between a normal power consumption mode and a lower power consumption mode. The amplifier circuit includes an emitter biased transistor. The switching circuit switches between power consumption modes by switching between two selected voltages at the base of the transistor. When in the lower power consumption mode, the oscillator has sufficient current to sustain oscillation but insufficient current to meet the phase noise requirements for good fidelity and high data rates. When in the normal power consumption mode, the oscillator has sufficient current to meet the phase noise requirements for good
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.