Hall sensor with a reduced offset signal

US6639290B1 · kind B1 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Hans-Peter Hohe · Heiligenstadt, DE
• Norbert Weber · Pocking, DE
• Josef Sauerer · Herzogenaurach, DE

Key dates

• Filing date: Aug 24, 2001
• Grant date: Oct 28, 2003
• Expiry date: Aug 24, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N52/80
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A hall sensor (1) comprises two opposite current supply, contact electrodes (7a, 7b) between which an active area (5) is defined for generating a current flow through the active area and two opposite voltage tapping contact electrodes (7b, 7d) for tapping-off a hall voltage, wherein a portion of the respective contact electrodes facing the active area (5) is formed in such a way that the interfering influence of the contacts on the offset-reduced effect of the spinning current operation is reduced.