Permanent magnetically excited electrical rotary drive
US6278251A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Sep 1, 1999 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Sep 1, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2316/18
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A permanent magnetically excited electrical rotary drive for a blood pump is proposed, comprising a permanent magnetic rotor and a stator, said stator comprising a drive winding having at least two loops for the production of a magnetic drive field which produces a torque on the rotor, with each loop belonging to a different electrical phase, furthermore comprising a setting device which supplies each loop in each case with a phase current or in each case with a phase voltage as a setting parameter, with the setting device comprising a separate power amplifier for each loop so that the setting parameter for each loop can be regulated independently of the setting parameter for the other loops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.