Servo driving method, apparatus, and robot thereof
US10632615B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/42238
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present disclosure provides a servo driving method, device, and robot thereof. The method includes: obtaining a current voltage of a power supply of the motor, if a control instruction for driving the servo is detected; obtaining a duty ratio of a PWM signal generated according to the control instruction and the current voltage, if the current voltage is not equal to a preset voltage; calculating a target duty ratio based on a ratio between the preset voltage and the current voltage and the duty ratio; and outputting a target PWM signal according to the target duty ratio. Which controls the motor to drive the servo through the obtained target PWM signal, and realizes that the rotation speed of the motor will not become unstable due to the change of the output voltage of the power supply during the operation of the motor, thereby avoiding the instability of the servo.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.