Amplification device having an adjustable bandwidth
US6392478B1 · kind B1 · utility
71Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Nov 16, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0018
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device for amplifying electronic signals, including:an amplifier PRA, anda plurality of feedback loops G1, G2 placed between the output and the input of the amplifier, which feedback loops are arranged so that each feedback loop has an adjustable gain and all the feedback loops jointly form an assembly having an equivalent impedance which is substantially independent of the gain settings selected.Thanks to the invention, the amplification bandwidth can be easily adjusted without adversely affecting the performance of the device in terms of noise and high cut-off frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.