Chopper control system
US4684859A · kind A · utility
4Cited by
25References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1985 |
| Grant date | Aug 4, 1987 |
| Priority date | — |
| Expiry date | Jan 17, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/92
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A novel control system for the motor or the like is disclosed which operates basically on principle that the power flowing in during the conduction of a chopper gate of a chopper device is integrated, and when the integrated value reaches a target, the gate is turned off, thereby realizing the control of an instantaneous value and high response and stability without the conventional feedback control. The target value is also reduced against the excess of the source voltage under variations in load for the regenerated power. Further, a constant-voltage control limiter is added to improve the ability to prevent a slip and race.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.