Low pass active filter
US4292599A · kind A · utility
2Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1979 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Jan 19, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/1213
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low pass active filter comprises multiple stages including multiple active devices, circuitry including resistance and capacitance AC coupling the stages in series sequence, and high impedance biasing resistance coupled between the first and last stage inputs, whereby the DC operating point is determined by one active device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.