Voltage controlled RC oscillator circuit
US4590444A · kind A · utility
14Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1984 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Oct 11, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0231
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A voltage controlled oscillator circuit is disclosed. A CMOS circuit version is detailed. A relaxation oscillator has its input coupled by way of a voltage follower buffer to the input terminal where the control voltage is applied. The operating frequency is determined by the circuit resistor and capacitor values along with the control potential. A linear frequency versus voltage response is obtained and the circuit will operate at low supply voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.