Low pass filter
US7023263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 2004 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Apr 14, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H11/126
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low pass filter includes a differential amplifier including a positive input end, a negative input end, a positive output end, and a negative output end. A first resistive device is coupled between the negative input end and a first node. A second resistive device is coupled between the positive input end and the first node. A third resistive device substantially the same as the second resistive device is coupled between the negative input end and a second node. A fourth resistive device substantially the same as the first resistive device is coupled between the positive input end and the second node. A first capacitive device is coupled between the negative input end and the positive output end. Finally, a second capacitive device substantially the same as the first capacitive device is coupled between the positive input end and the negative output end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.