Active EMC filter for machine tools
US7629836B2 · kind B2 · utility
6Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E40/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An active EMC filter for machine tools allows reducing the leakage current normally induced by large phase-to-ground capacitances. The filter may comprise an active shunt module or an impedance converter or a correction signal generator and is suitable both for three-phase and single-phase applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.