Contactless hall effect push button switch
US6612404B2 · kind B2 · utility
69Cited by
14References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 2001 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Jun 19, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/9653
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A programmable switching device that employs a Hall Effect sensor and a moving magnet is disclosed. The Hall Effect sensor is electrically connected to a programmable microprocessor that is programmed to detect changes in Hall Effect voltages at the sensor. The programmable switching device may also be configured as a rotary switching device. By using a plurality of magnets and Hall Effect transducers and orienting some magnets with their polarities in different directions, a temper-proof switch can be achieved. The programmable switching device may be connected to a serial bus that is interfaced with an elevator controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.