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Electronic self-locking interlock switch circuit diagram

2017-01-06 19:51  
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Electronic self-locking interlock switch circuit diagram
Switch's core component is the four operational amplifier LM324, after the ingenious design, each operational amplifier has the twofold function like the voltage comparator and the Schmitt trigger. The voltage applicable scope is wide, and the files may be designed willfully, if it adds a neutral gear, it can be used as the overall reset, when it is used with the digital circuit, they can use the same power source, and the switch's input, output level conforms to digital circuit's connection level, because operational amplifier has high input impedance, the switch's input current is small, it may use the light touching switch. The conductive rubber, thin film switch makes the pressing key.