Two-phase inverter drive for a three-phase motor
US5406185A · kind A · utility
14Cited by
10References
16Claims
0Family size
Inventor
Key dates
| Filing date | Jun 4, 1993 |
| Grant date | Apr 11, 1995 |
| Priority date | — |
| Expiry date | Jun 4, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P1/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low-cost means to drive a three-phase motor from a DC energy source. The low cost is achieved by requiring only two inverter circuits instead of the conventional three inverter circuits. The third input phase to the motor is grounded. Balanced three-phase power is developed across the three stator coils of the motor, resulting in normal three-phase operation, including control of rotational direction. This is accomplished by appropriately selecting the phase angle of the two active phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.