System and method for automatic current limit control
US7414377B2 · kind B2 · utility
5Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Aug 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor controller system comprises solid state switches for connection between an AC line and motor terminals for controlling application of AC power to the motor. A sensor senses AC line voltage. A control circuit controls operation of the solid state switches. The control circuit ramps switch current during a start mode and selectively holds switch current during the start mode if sensed voltage drops below a threshold amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.