Date：2018-11-10
I believe that the switch is familiar to everyone. The switch at home is a device that people can often touch. For example, using a switch to control the lighting of the lamp, controlling the lifting of the curtain, etc., these are just narrow definitions that we are familiar with. In general, a switch is an electronic component that can open a circuit, interrupt a current, or flow into other circuits. The switch also contains many types, such as control switches, transfer switches, wall switches, etc. according to the purpose, according to the structure, there are button switches, micro switches, button switches, etc., according to the number of switches can be divided into single control , dual control, multi-control, quick-change switch and so on.
