Device for controlling an electronically switched motor by means of a position signal
US6859002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Sep 26, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C19/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for controlling an electronically switched motor which includes a coder (2) having a main multipole track (2a) and a so-called “revolution pip” multipole track (2b); a fixed sensor (3) delivering two digital position signals (A, B) and one revolution pip signal (C); a circuit for switching the currents in the phase windings of the motor which comprises 2*P*N switches; a control circuit for the switching circuit which is able to supply the switching signals for the switches which correspond to the state of the logic determined by the revolution pip signal (C) or by the position signals (A, B). The control device can be combined with a bearing and/or a motor equipped with such a device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.