Motor drive control device and operating method thereof
US8816626B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2013 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Jan 31, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Motor Drive Control Device configured to properly start up various types of motors under operating conditions where motor operations are performed in a wide range of temperature and power supply voltage, includes output drive controllers that supply PWM drive output signals to an output pre-driver in such a manner as to minimize the error between a current instruction signal and a current detection digital signal. In response to a detected induced voltage generated from a voltage detector upon startup of a motor, an initial acceleration controller supplies initial acceleration output signals specifying a conducting phase for initial acceleration of the motor to the output drive controllers. The initial acceleration controller, the output drive controllers, and an output driver make a conducting phase change and perform a PWM drive to provide the initial acceleration of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.