新塑无触点接近开关

The New Type of un-touching Approach Switch

详述了新型无触点接近开关的电路结构和工作原理。本电路的特点是采用晶闸管 MCR100-6作为无触点开关输出电路。MCR100-6触发电压不是用单结晶体管产生,而是用电容器 C_4的充放电来产生,这种结构承受的负载电流大,可靠性高。

This paper scrutinizes the circuit structure of new type of un-touching approach switch.The attribute of this type of switch is using the thyristor MCR100-6 as a non-touching switch outputting circuit.The unijunction transistor does not cause the triggering volume of the MCR100-6.The triggering volume is caused by the recharg- ing and releasing of the capacitor of C_4