Frequency divider with darlington transistors
US4769621A · kind A · utility
3Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 18, 1987 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Aug 18, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B5/1847
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A frequency divider is disclosed that includes two bipolar transistors coupled as a Darlington pair, where the base of the first transistor receives an input signal to be divided, and where the common collectors of the transistors generate an output signal having a frequency equal to one-half or other integer submultiple of the input signal. The frequency divider also includes a feedback network operable for coupling a portion of the output signal from the output side of the transistors to the input side of the transistors. Such a frequency divider can provide signal conversion gain at microwave frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.