Differential current sensor
US11320466B1 · kind B1 · utility
6Cited by
20References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Oct 29, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/15
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and apparatus for measuring a current difference between at least two current traces in a circuit board. Each wire or trace generates a magnetic field which may then be measured by at least one magnetic field sensing element positioned on an integrated circuit, such as a current sensor integrated circuit or a differential magnetic field sensor integrated circuit. An output disconnect signal may be provided from the current sensor or differential magnetic field sensing integrated circuit to indicate that a current difference above a predetermined threshold exists in the two or more current traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.