Multi-phase bipolar brushless D.C. motor
US6359401B1 · kind B1 · utility
18Cited by
5References
17Claims
0Family size
Inventors
Key dates
| Filing date | Oct 16, 2000 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Oct 16, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multi-phase bipolar brushless D.C. motor having an embedded permanent magnet as a rotor, an armature as a stator and a plurality of windings are sub-wound on the stator in parallel and independently phase-connected. A commutation encoder defining light shielding and light detecting portions is fixedly mounted on a shaft of the rotor to be rotated, and a photo-sensor is coupled operatively thereto and connected with a driving circuit to improve the performance of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.