Multi-function control system for an induction motor drive
US4727305A · kind A · utility
12Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1986 |
| Grant date | Feb 23, 1988 |
| Priority date | — |
| Expiry date | Apr 30, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an induction motor drive controlled by SCR devices connected in the AC power supply phase lines of the motor, a plurality of channels establish, on a common input to a digital gate pulse generator of the SCR's, various signals occurring in the course of the motor drive operation. These signals relate to motor operating modes, such as soft start tripping, current limit. A central large scale integrated (LSI) chip responds digitally to such common input so as to establish the required firing angle at any instant and for any situation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.