Magnetic shunt device for hall effect applications
USH1990H · kind H · statutory invention registration
Assignee
Inventors
Key dates
| Filing date | — |
| Grant date | Sep 4, 2001 |
| Priority date | — |
| Expiry date | — |
Classification
- Technology area (CPC —)General
Abstract
A magnetic shunt device for use in a Hall effect sensor application wherein the shunt device is positioned and located relative to the Hall effect element and is shaped and dimensioned so as to shield and null the influence of the magnetic field when such field is substantially parallel to the sensitive plane of the Hall effect element. The present shunt device ensures that the null output voltage of the Hall effect element in a particular sensor application is consistent for a large number of such sensors despite misalignment problems and mechanical uncertainties in accurately arranging the magnetic devices that generate the magnetic field relative to the Hall effect element at the null or "no action" position of the sensor. The present device also obviates the requirement to use additional electronic circuitry to adjust the output voltage of the Hall effect element at the null or "no action" position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.