Control method for stepping motor of thermal printer
US12407281B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2023 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | May 9, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control method for a stepping motor of a thermal printer of the present application includes the following steps: in a starting stage of the thermal printer, transmitting a square wave control signal to the stepping motor; in a starting process, using the square wave control signal and switching to square wave control with Pulse Width Modulation (PWM) for outputting in a case of accelerating to the maximum set speed according to an accelerometer; in a normal printing process, according to changes in a printing rate, adaptively dynamically adjusting a printing speed. In a motor deceleration process, the duty cycle of the motor inner-loop PWM control is unchanged. The square wave control and the square wave with the PWM are used for switching control or combining control according to different stages of work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.