中圖分類號： TM331
文獻標識碼： A
DOI：10.16157/j.issn.0258-7998.211553
中文引用格式： 宋建國,，袁宇瑞,，桓建文. 基于Mini51的BLDCM無位置傳感器控制[J].電子技術應用，2021,，47(10)：95-100.
英文引用格式： Song Jianguo,，Yuan Yurui，Huan Jianwen. Sensorless control of BLDCM based on Mini51[J]. Application of Electronic Technique,，2021,，47(10)：95-100.

Sensorless control of BLDCM based on Mini51

Abstract： Nuvoton′s Mini52(Mini51 series) microcontroller is used as the main control chip. By using the performance of the 6-channel PWM signal that the Mini51 series microcontroller can output, the sampling resistor is used to collect the terminal voltage to obtain the current of the DC bus. The zero point method(EMF) is used to control the motor to realize the dual closed-loop control of the BLDCM without position sensor. The serial communication is used to complete the servo system of the brushless DC motor, and the test is carried out. The test results show that the Mini51 series single-chip microcomputer can respond to high-speed serial communication in real time and the servo system has good speed controllability, which can meet the needs of modern industrial production real-time control.

Key words : brushless DC motor,；sensorless control；Mini51；BEMF