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第十三讲 定时器 定时器有机械式和电子式两大类。一般洗衣机和电风扇上的定时器都是机械式的,这里介绍一种电子式定时器,用它可以控制小红灯定时熄灭。通过制作可使你了解单稳态触发器的工作原理。 电子式定时器电路如图1所示。
Thirteenth timer timer There are two types of mechanical and electronic. General washing machines and fans on the timer are mechanical, here introduced an electronic timer, with it you can control the small red light off at regular intervals. Through the production you can understand the working principle of monostable trigger. Electronic timer circuit shown in Figure 1.