Patent · US Active

Current sensor for improved functional safety

US11467188B2 · kind B2 · utility

2Cited by

2References

29Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Guenter Schwarzberger · Reitmehring, DE
Sebastian Maerz · Starnberg, DE
Wolfgang Raberg · Sauerlach, DE

Key dates

Filing date	Feb 25, 2020
Grant date	Oct 11, 2022
Priority date	—
Expiry date	Sep 15, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG01R31/364
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A current sensor arrangement includes a first conductor configured to conduct a first portion of a primary current in a current flow direction; a second conductor configured to conduct a second portion of the primary current in the current flow direction; and a magnetic sensor. The first and second conductor are coupled in parallel. The first current produces a first magnetic field as it flows through the first conductor and the second current produces a second magnetic field as it flows through the second conductor. The first conductor and the second conductor are separated from each other in a first direction that is orthogonal to the current flow direction, thereby defining a gap. The magnetic sensor is arranged in the gap such that the first conductor is arranged over a first portion of the magnetic sensor and the second conductor is arranged under a second portion of the magnetic sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.