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- W4385945478 abstract "Magnetic field-based current sensors are widely used due to their galvanically insulated measurement principle. A well-proven concept is based on the discrete realization of Ampèere's law using a circular array of magnetic field sensors. Depending on the linear operating range of the magnetic field sensors, the radius of the circular array has to be chosen, leading to large dimensions for high current values. This paper presents a novel approach to build a compact wide bandwidth current sensor based on the combination of tilted tunnel-magnetoresistance sensors and a Rogowski coil. The used tunnel-magnetoresistance sensors are characterized and show an increased linear range in the current sensor application if they are tilted. In addition, the sensor sensitivity is varied with the tilt angle. A novel current sensor concept based on tilting in combination with repositioning the magnetic field sensors is presented. This concept offers the opportunity to reduce the size of state-of-the-art current sensors based on magnetic field sensors significantly. The proposed concept is verified in a current sensor prototype. The DC current linearity, the dynamic behavior as well as the signal-to-noise ratio is characterized. Ideas how this concept can be used and further developed are presented." @default.
- W4385945478 created "2023-08-18" @default.
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- W4385945478 date "2023-01-01" @default.
- W4385945478 modified "2023-10-16" @default.
- W4385945478 title "Compact Design of a Wide Bandwidth High Current Sensor Using Tilted Magnetic Field Sensors" @default.
- W4385945478 doi "https://doi.org/10.1109/tia.2023.3305979" @default.
- W4385945478 hasPublicationYear "2023" @default.
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