Device and improved method for protecting against lightning for a differential input
US11088529B2 · kind B2 · utility
3Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2018 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2291
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for acquiring signals from a sensor, the device comprising a differential amplifier, two bias resistors for biasing of the measurement device, a common mode and differential mode filter circuit, and two lightning limiter components. The differential amplifier is of the high common mode range type, the limiter components are dimensioned to reduce a lightning voltage to a maximum voltage value of the order of about one hundred volts and the filter circuit and the bias resistors are dimensioned to withstand that maximum voltage value. A correspond method for protecting a device against lightning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.