Motor controller electronically commutated DC motors in order to compensate for torque drops
US5793172A · kind A · utility
0Cited by
20References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1996 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Oct 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In the case of a motor controller for electronically commutated DC motors, an additional current and/or an additional voltage is passed at the commutation instant to that winding of the motor which is active at that time, in order to prevent torque drops. In order to compensate for torque drops at different motor loads, the duration and/or amplitude of the additional current and/or of the additional voltage are/is determined from the actual motor load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.