CMOS oscillator with first and second MOS transistors of opposed type integrated on the same substrate
US4013979A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1975 |
| Grant date | Mar 22, 1977 |
| Priority date | — |
| Expiry date | Sep 22, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D84/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
CMOS oscillator in which the oscillator circuit comprises a first MOS transistor connected by its source to a first terminal of a voltage supply and biased by the current provided by a second MOS transistor of opposed type which is a part of the same integrated circuit. At least a third MOS transistor (T.sub.6, T.sub.8, T.sub.12) of the same type as the second and which is a part of the same integrated circuit is provided, the sources and gates of the second and third transistors being respectively connected together and respectively to the second terminal of the voltage supply and to a point (P) at a potential such that the mean drain current of the first transistor will be maintained at a value just higher than the value at which oscillation starts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.