Magnetic pole insensitive switch circuit
US6622012B2 · kind B2 · utility
85Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Nov 27, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/9517
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A switch which is magnetic pole insensitive is described. The switch includes a Hall effect sensor coupled to a threshold circuit which provides an output signal indicative of the proximity of a magnet, and hence a magnetic field, to the Hall effect sensor regardless of the orientation of the magnet to the Hall effect sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.