Feedback loop for LC VCO
US7026883B2 · kind B2 · utility
22Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0066
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage-controlled oscillator includes an inductor capacitor (LC) tank; a drive circuit having a current source; and a feedback loop circuit. The feedback loop includes a peak detect circuit to generate a peak detect voltage; a reference voltage generator to generate a single reference voltage; and an operational amplifier, coupled to the peak detect circuit and the reference voltage generator, to generate an analog bias signal to adjust a current of the current source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.