Current sensor assemblies for low currents
US12235294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2024 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Apr 24, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10151
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A current sensor assembly can include: a coil structure having a first coil and a second coil connected in series, the coil structure configured to generate a differential magnetic field responsive to an electrical current passing through the first and second coils; a first magnetic field sensing element disposed proximate to the first coil and operable to generate a first signal responsive to the differential magnetic field passing through the first magnetic field sensing element in a first direction; a second magnetic field sensing element disposed proximate to the second coil and operable to generate a second signal responsive to the differential magnetic field passing through the second magnetic field sensing element in a second direction; and a circuit operable to subtract the first and second signals to generate a differential signal proportional to the electrical current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.