Power chopper supply for a bifilar wound stepping motor
US4127801A · kind A · utility
16Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 16, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | May 16, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P8/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One coil of a bifilar winding of a stepping motor is energized until the current therein reaches a set value and then energization is terminated which creates an induced current that supports the magnetic flux produced by the energizing current and in which the duration of the induced current is increased by being directed through both coils of the winding thereby decreasing the motor's power requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.