Rectifying circuit for a multiphase electric machine
US8064227B2 · kind B2 · utility
6Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2009 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Feb 3, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/92
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Cathode-anode voltage across free-wheeling diodes in an active rectifier is used in the determination of switching points when the free-wheeling diode is forward biased. Hysteretic switching is accomplished through the selection of conductive and non-conductive switching threshold. The switching thresholds are further selected to prevent voltage oscillations at zero current crossings and reduce delays during deactivation to prevent cross-conduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.