Hall-effect based linear motor controller
US8084969B2 · kind B2 · utility
994Cited by
35References
1Claims
0Family size
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Key dates
| Filing date | Oct 1, 2007 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A linear motion control device for use in a linear control system is presented. The linear motion control device includes a coil driver to drive a coil that, when driven, effects a linear movement by a motion device having a magnet. The linear motion control device also includes a magnetic field sensor to detect a magnetic field associated with the linear movement and an interface to connect an output of the magnetic field sensor and an input of the coil driver to an external controller. The interface includes a feedback loop to relate the magnetic field sensor output signal to the coil driver input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.