描述
晶体管集电极输出电路。。输出信号送给内部电路中的输出锁存器,再经光耦合器送给输出晶体管,后者的饱和导通状态和截止状态相当于触点的接通和断开。图中的稳压管用来抑制关断过电压和外部的浪涌电压,以保护晶体管,晶体管输出电路的延迟时间<1ms。场效应管输出电路的结构与晶体管输出电路基本上相同。
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