Driving apparatus and a driving method for a single phase motor
US7629758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2007 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Dec 29, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/29
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving apparatus and a driving method for a single phase motor utilizes a driving transistor unit, and an auxiliary driving transistor unit to provide two driving currents with the same direction as the single phase coil. Next, a control unit is used to control the conducting and shutting down of the driving transistor unit and the auxiliary driving transistor unit according to the location of the rotating device of the single phase motor. Thereby, the driving current on the single phase coil recirculates to reduce the vibration and noise of the single phase motor, and prevent the problem of the single phase motor not turning on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.