PTC 元件用于直流电磁铁启动的探讨

Application of PTC Element to Starting of DC Electromagnet

直流电磁铁是广泛应用的电磁控制元件，ＰＴＣ元件是具有正温度系数特性的半导体陶瓷热敏电阻。本文根据电磁铁的工作原理和ＰＴＣ元件的电流时间特性，探讨了ＰＴＣ元件在直流电磁铁启动中的应用。

Direct current electromagnet is extensively used as electromagnet controlling element.PTC element is a ceramic thermistor with positive temperature coefficient.This paper discusses the application of PTC element in the starting of direct current electromagnet according to the working principle of electromagnet and the current time relation of PTC.