Pulse controllers
US4104571A · kind A · utility
11Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1976 |
| Grant date | Aug 1, 1978 |
| Priority date | — |
| Expiry date | Nov 16, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P3/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pulse controller for a reversible d.c. series motor is provided, in place of the conventional freewheel diode across the armature and field and plugging diode across the armature, with a unidirectional current path connected across the armature and field and containing sufficient impedance to prevent build-up of motor current in interpulse periods when the motor is in a plugging mode, and switch means for shorting out the impedance during normal motoring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.