基于SG3525的无刷直流电动机调速系统  

The Speed Regulating System of Brushless DC Motor Based on SG3525

作　　者：师军[1] 高金行[1] 李玉忍[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《微电机》2006年第5期47-49,共3页Micromotors

摘　　要：以MC33035 MC33039构成的无刷直流调速系统为基础,从降低高频开关损耗出发,用SG3525构成母线PWM定频调压环节,减小了电动机内部的高频谐波损耗,有效地控制了无刷直流电动机的发热,达到了理想的使用效果。The speed regulating system of special brushless DC motor based on MC33035 and MC33039, for the purpose of reducing the cost of high-frequency switch, comprises bus PWM of constant frequency and voltage regulator by SG3525 which lessens the cost of high-frequent harmonic wave in the motor, effectively controls the heat generating from the case of the motor. This speed regulating system is effective in application.

关 键 词：无刷直流电动机 调速系统 PWM定频调压 高频谐波损耗 

分 类 号：TM361[电气工程—电机]