基于555定时器的三相异步电动机电子控制设计

Electronic Control Designs of Three-phase Asynchronous Motor Based on 555 Timer

555定时器输出的高低电平可以控制继电器的吸合与断开,而继电器的吸合与断开又可以用来控制电机的运行,这样555定时器作为控制电路核心器件就实现了对电动机的自动控制。本文讲述了555定时器对电动机作间歇运转控制、定时控制以及三相异步电动机的Y-△换接起动的自动控制。

555 timer output can control a high-low relay pull-in and disconnect, and the relay pull-in and disconnect can be used to control motor operation, such as control circuit 555 timer core device on the implementation of automatic control of electric motors. This article is about the 555 timer for intermittent operation of motor control, timing control, as well as three-phase asynchronous motor γ - △ starter for automatic control of access.