System and method for driving three-phase motor
US9000697B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2011 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Sep 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for driving a three-phase motor with a driver. The driver can provide a pulse-width modulated driving signal and a linear driving signal. The three-phase motor has a first leg, a second leg and a third leg. The method includes: connecting the second leg to the driver; floating the third leg; driving the second leg with the pulse-width-modulated driving signal from the driver; estimating a time when a voltage in the third leg will reach a predetermined threshold; and driving the second leg with the linear driving signal during that time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.