Current sensor error compensation
US9966882B2 · kind B2 · utility
1Cited by
23References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2011 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Feb 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for an electric motor comprises a current sensing means arranged to produce a current sensing output indicative of electric current in the motor, current control means arranged to receive the current sensing output and to output a voltage demand indicative of voltages to be applied to the motor, and current sensing correction means arranged to monitor the voltage demand to measure distortion in the current sensing output and to generate a correction signal which is arranged to correct the distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.