Apparatus for reducing motor driving noise and method for generating motor driving noise reducing signal
US6724166B2 · kind B2 · utility
15Cited by
6References
4Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 12, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jun 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is disclosed an apparatus for reducing motor driving noise, comprising: a selecting circuit for selecting and outputting a current increasing or reducing signal based on a commutation control signal; and a signal synthesizing circuit for synthesizing the current increasing or reducing signal selected by the selecting circuit with a current application control signal supplied to the power supply side switching element of at least a pair of switching elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.