Current detection device
US11320463B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Sep 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current detection device includes a first coil, a magnetic field detection element, a shield layer, a second coil, and an operation circuit. The first coil has a planar shape. The magnetic field detection element is disposed in a spaced apart manner from the first coil in a direction orthogonal to a plane of the first coil, and is disposed so as to receive a magnetic field which the first coil generates. The shield layer is disposed between the first coil and the magnetic field detection element. The second coil is disposed in a spaced apart manner from the first coil with respect to an axis perpendicular to the shield layer. The operation circuit operates the second coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.