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Details of Button Switch

Release time:2019-07-16    Clicks: Click

 
The working details of the button switch are introduced. Please come to know more about it so as to avoid malfunction.
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Button switch has a good application in many enterprises'production, which can enable people to achieve more aspects of operation, so as to achieve efficient production. So how does the button switch work?
In fact, the button switch can be seen as a delay circuit, which consists of a large capacitor, a large resistance and an insulated gate FET. When triggered, it charges the capacitor, and the trigger cycle ends. At this time, the gate capacitor of the insulated gate acts on a high voltage field. The effect transistor is turned on, and the drain of the gate is connected with a load, so the load works. Because the resistance of the gate to the ground is very high, usually hundreds of megaohms, so the discharge is slow, so we need to add a discharge resistance, usually adjustable resistance, to adjust the delay time. The resistance is large, the delay is long, the resistance is small and the delay is short. When the capacitor is dead and the gate voltage is dead, the FET enters the cut-off state and the drain load stops working.
Therefore, when the button switch is working, these details need to be done well to ensure its good performance.
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