Brushless DC motor control and method
US9774279B1 · kind B1 · utility
1Cited by
22References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 2, 2017 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Mar 2, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for controlling movement of an actuator includes an input power source that provides an input pulse width (PWM) signal; a motor driver that receives the PWM signal and provides a synthesized three-phase drive signal; a brushless direct current (BLDC) motor that receives the drive signal and operates in response to the received drive signal to reposition the actuator; and a controller that receives the PWM signal. The controller includes an amplitude detection module that detects the amplitude of the PWM signal, and a direction detection module that detects the polarity of the PWM signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.