Electrical coupling circuit for passing a varying signal and blocking a direct component thereof
US5043610A · kind A · utility
3Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1989 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Nov 17, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An output of a first amplifier is coupled to the input of a second amplifier by a coupling capacitor. A resistor connects one plate of the coupling capacitor to a reference voltage supplied by a potential divider. A field effect transistor is connected across the resistor with its gate connected to the connection between a further resistor and a further capacitor which are connected in series between power supply lines so that the coupling capacitor is rapidly charged when power is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.