Electronic cancellation of DC motor noise
US6259224A · kind A · utility
7Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1996 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Oct 18, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3212
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An active attenuation system for a DC motor which yields global vibration reduction of slot or other motor induced tonals at the plate on which the motor is mounted without modifying the construction of the motor. The system comprises one or more vibration sensors, a signal synchronized to the slot rate or other motor induced tonal rate, an electronic adaptive controller and the means to supply the control signal into the motor field and/or armature current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.