CD4013是最常用的双D触发器。CD4013也可用作各种拧制电路,下面举几个实用例子。 1.组成光控延时电路:如图1所示。CD4013电路构成典型的单稳态延迟电路。当光没有照射到光敏三极管3DU3时,输入端S无电压,IC电路不触发,继电器J不吸合。当有光照射到3DU3时,3DU3导通,触发IC延迟开始,Q端输出高电平,晶体管V导通,J吸合,起到光电自动控制作用。延迟时间由R2、C的常数 CD4013 is the most commonly used dual D flip-flop. CD4013 can also be used as a variety of twist circuit, a few practical examples below. 1. Composition light control delay circuit: as shown in Figure 1. The CD4013 circuit forms a typical monostable delay circuit. When the light does not reach the phototransistor 3DU3, the input S without voltage, the IC circuit does not trigger, the relay J does not pull. When there is light to 3DU3, 3DU3 conduction, trigger IC delay began, Q-side output high, the transistor V conduction, J pull, play a photoelectric automatic control. The delay time is determined by R2, C constants