Current sensor
US11639950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2021 |
| Grant date | May 2, 2023 |
| Priority date | — |
| Expiry date | Mar 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/0076
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current sensor for detecting a magnitude of a current flowing through a measuring object has a magnetic core having a first magnetic core and a second magnetic core that is arranged magnetically in parallel to the first magnetic core, wherein the first magnetic core has a magnetic permeability that is higher than that of the second magnetic core in a first frequency band, and the first magnetic core has a magnetic permeability that is lower than that of the second magnetic core in a second frequency band, the second frequency band being higher than the first frequency band, and the current sensor detects the magnitude of the current in a frequency band that is constituted by combining the first frequency band and the second frequency band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.