Variable gain constant bandwidth trans-impedance amplifier for fiber optic rate sensor
US7531783B2 · kind B2 · utility
0Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2007 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jun 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A trans-impedance amplifier with gain control for a fiber optic rotation rate sensor. A variable gain amplifier having gain control based on keeping the amplifier output above a certain level. The gain control approach allows the amplifier bandwidth to remain constant. A gain control circuit includes a control device connected to ground and the amplifier feedback network. The input to the gain control circuit may be the amplifier output that has been filtered, or the input could be from an external circuit or microcontroller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.