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Circuit analysis of SMD tact switch News Source： Release Time：2017.04.17 Views:
Tact switch circuit analysis of low voltage rectifier filter circuit after high frequency pulsating voltage step-down transformer after beginning to use the same diode and a capacitor is rectified and filtered, and the capacitance rectifier part used AC impedance can not have too big, otherwise it can not filter the high frequency AC component of the capacitor, so choose not only a large volume. Also, have low resistance to exchange, also can see 1, 2 large volume with magnetic core inductance coil, the AC component and filter capacitor together to remove high frequency, ensure the direct current output pure. Press the shrapnel to connect the printed circuit.
How important is the method of selecting the circuit for the patch tact switch? The circuit analysis of a good patch touch switch is also important for the life of the whole product. For example, computer keyboard, remote control and so on. If it is an inferior touch switch, it will lose its elasticity and lose its elasticity when it is pressed frequently. Therefore, the selection of tact switches is very important. The key factors of waterproof touch switch are the protection, weldability, conduction reliability, life, handle, production process and installation size of waterproof touch switch.
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