Radio-frequency interference suppressing system for permanent magnet field motor
US4384223A · kind A · utility
27Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1981 |
| Grant date | May 17, 1983 |
| Priority date | — |
| Expiry date | Apr 15, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A radio-frequency interference suppressing system for inside a permanent magnet field motor case includes a pair of commutator brushes, a pair of power input terminals electrically connected with the brushes, a capacitor electrically connected across the terminals, a pair of capacitors each electrically connected to a different one of the two terminals, and a grounding member electrically connected with the pair of capacitors for engaging the inside of the motor case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.