Differential transistor pair integrated circuit oscillator with L-C tank circuit
US4063193A · kind A · utility
15Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1976 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Oct 12, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/2823
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A differential transistor pair has an antiresonant tank connected between collectors. Feedback is achieved using a pair of cross connected zener diodes biased into reverse breakdown. A balanced two-pin version provides paraphase output and an unbalanced single-pin version is available for single phase output. The single pin version can include a current mirror for biasing the zener diodes with constant current. The oscillator can be temperature compensated by means of a temperature programmed current source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.