Current sensing device
US7501808B2 · kind B2 · utility
4Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2007 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Jul 12, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/202
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic core is shaped in a ring having a gap and disposed to surround a conductive wire. When an electric current flows in the conductive wire, a magnetic field is generated in the gap. A sensor package includes a Hall element and a lead frame, which are embedded in a resin mold. The sensor package is disposed in the gap to produce an output signal corresponding to the magnetic field in the gap. The Hall element is positioned in the center of the gap, that is, at the position which is the same distance from the end surfaces of the magnetic core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.