基于单片机的星三角电动机启动电路设计

设计一种基于单片机控制的电动机星三角启动电路.本电路采用单片机作为控制器,控制三相异步电动机的星三角启动.该控制电路可通过按键启动和关闭电动机,同时还可设置电动机星三角转换的延迟时间.当通过按钮启动电动机后,单片机将自动实现三相异步电动机启动电路的星三角转换.该控制电路还以级联共阴数码管为显示器,实现电动机状态与星三角转换延迟剩余时间的显示,具有优良的人机界面.

Start circuit design microcontroller-based star delta motor

This paper design a starting circuit based on single chip microcomputer control star delta motor. The circuit uses a mi crocontroller as controller, the controlof threephase asynchronous motor star delta starter. The control circuit can beactivated by a key press and shut off the motor, but also can set the delay time formotor star delta conversion. When the button to start the mo tor, single chip microcomputer will automatically start the star delta conversion circuit of threephase asynchronous motor. The con trol circuit with cascaded common Yin digital tube display, realize the motor state and star delta conversion delay remaining time dis play, has a good manmachine interface.