Single pole double throw toggle switch XT-12A dpdt toggle switch

dpdt toggle switch means that there are two movable conductive knife brake blades. Two knife brake blades are connected with power supply; When the knife brake blade is cut to the upper end and connected with the static knife edge, it will supply power, and the lower static knife edge will have no power at this time. When the knife brake blade is cut to the static knife edge at the lower end and connected, this circuit will supply power. At this time, the upper static knife edge will have no power. This usage is that one power supply supplies power to two power lines at the same time. Another usage is that the knife brake blade is connected to the line on the power side, while the upper and lower static knife edges are connected to two power supplies respectively, and the two power supplies can supply power to one line through connecting the moving blade with different static knife edges.

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dpdt toggle switch

dpdt toggle switch is a kind of coaxial switch, which is defined according to the number of interfaces and code is #p#t. in addition, there are single pole single throw (SPST), single pole double throw (SPDT), single pole six throw (sp6t), etc.

dpdt toggle switch is actually formed by two SPDT switches in parallel. Its wiring mode is exactly the same as that of each SPDT. The two knives are connected through an insulating plastic and then share a handle.

The devices constituting the coaxial switch include ferrite, pin tube, FET or BJT. Ferrite and pin are classic switching devices. Table 1 shows the performance comparison of the two devices. Ferrite is characterized by high power and low loss, and pin is characterized by fast and low cost. FET or BJT has gain and has become the main device of medium and small power switches. Coaxial switches of various devices have their own applications.

The switch has six wiring pins, which can realize the conversion of positive and negative directions of DC power supply. The principle is that the left side is always positive or negative, and the right side is always positive or negative. The same is true with switch connection. Just reverse the power supply of the positive and negative poles, that is, what is drawn on the left is positive on the top and negative on the bottom. It is also true on the right. It should be changed to be different on both sides.