摘要
介绍555定时器在电动机控制方面应用的2个例子。第1个是用555定时器构成多谐振荡器,对锅炉送煤电动机作间歇运转控制;第2个是用555定时器构成单稳态触发器,实现对三相异步电动机的丫 Δ换接起动的自动控制。文中除了介绍2种控制的原理以外,还分析了有关参数的选取。
This paper presents two examples about the application of 555 timer in power drive. The first constitutes multiport with 555 timer so that the motor of feeding coal to boiler is controlled to revolve in intermittent form. The second constitutes monostable multivibrator with 555 timer for controlling motor start in the form of 丫Δ transfer.The paper also analyses the choice of some parameters.
出处
《河北工业科技》
CAS
2003年第5期44-46,共3页
Hebei Journal of Industrial Science and Technology
