Current measuring device and processing unit comprising one such device
US8160829B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jul 3, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The current measuring device comprises a first measuring resistor to receive a measurement current, and a first signal amplifier having an input connected to said first measuring resistor and an output to provide a first measurement signal. A second measuring resistor is connected in series with said first measuring resistor, and first voltage limiting means are connected in parallel on the first measuring resistor to branch a first shunt current off when a first limiting voltage is reached on said first measuring resistor. The value of the first measuring resistor is greater than the value of the second measuring resistor A processing unit comprises one such current measuring device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.