摘要
通过对所设计的ＭＣ６８０５Ｕ２单片机与ＳＬＥ４５２０ＰＷＭ专用芯片结合的变频调速系统的分析，说明该系统具有电路简单、节能、精度高、使用灵活、安全可靠性好等优点，适用于中小功率电动机拖动的变频调速电源。
This variable frequency speed regulator system consists of microcontroller MC6805U2 and special PWM inverter IC chip SLE4520. The advantages of the system obtained by analysis are simplicity in electrical circuit, high accuracy, versatility in application, safety and economizing energy in operation. It is suitable for apparatus driven by small of middle power motor.
