Motor driving controller and motor driving control method
US10361644B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2017 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Jan 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor driving controller, comprising a rotary position detection device generating a position detection signal corresponding to a rotary position of a rotor of a motor; a control circuit selecting a first driving control signal for performing rectangular wave driving or a second driving control signal for performing driving with an overlapped energization period longer than an overlapped energization period in the rectangular wave driving, based on the position detection signal, thereby to output a driving control signal; and a motor driver outputting a driving signal to a stator coil of the motor based on the driving control signal, wherein the control circuit outputs the first driving control signal at time of starting, and the control circuit outputs the second driving control signal when a rotary state is detected on the basis of the position detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.