Magnetic sensor system having an initialization conductor

US12038308B2 · kind B2 · utility

Assignee

• Analog Devices International Unlimited Company · IE

Inventors

• Jochen Schmitt · Ludwigshütte, DE
• Monsoon Dutt · London, GB
• Enno Lage · Kiel, DE
• Stephen A. Bradshaw · Hungerford, GB
• Bryan Patricio Aguiar Gonzalez · London, GB

Key dates

• Filing date: Mar 7, 2022
• Grant date: Jul 16, 2024
• Expiry date: Jun 16, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G11C11/1697
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure provides magnetic sensor system that includes a magnetic sensing device comprising a magnetic multi-turn sensor, and an initialization device for setting the magnetic multi-turn sensor in a known state ready for use. The initialization device is in the form of a substrate, such as a printed circuit board, comprising one or more wires. A strong electrical pulse is applied to the one or more wires, which thereby generate a magnetic field that is strong enough to cause the magnetoresistive elements of the magnetic multi-turn sensor to be filled with domain walls, thereby magnetizing each element into an initialized state.