Drive system for multiple motors
US8063589B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | May 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive system for multiple motors includes a first motor, a second motor, a motor drive power supply for supplying power to the first and second motors, a first motor drive amplifier, a second motor drive amplifier, a first overcurrent detection apparatus, and a second overcurrent detection apparatus. The first overcurrent detection apparatus is connected between the motor drive power supply and the first motor drive amplifier for detecting current through the first motor drive amplifier, and comparing the current value to the first overcurrent benchmark value to output an overcurrent detection signal correspondingly. The second overcurrent detection apparatus is connected between the motor drive power supply and the second motor drive amplifier for detecting current through the second motor drive amplifier, and comparing the current value to the second overcurrent benchmark value to output an overcurrent detection signal correspondingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.