Switches,Relays
Switches and relays are common electrical components that play different roles in circuits. A switch is a device that controls the on and off state of a circuit by manual or electronic signals, and can directly switch the on and off state of a circuit; while a relay is a device that controls a circuit by exciting contacts with a coil, and the magnetic field generated by the coil causes the contacts to open and close.
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Switches,Relays: The essence of the switchs is to control the on and off of a circuit based on manual operation, and is applicable to DC, low-voltage, low-current circuits, such as light switches, fans, and televisions. Relays have a wider range of applications, and their essence is to switch the control signal of a low-current circuit to a high-voltage, high-current circuit through electromagnetic mechanical action, such as automotive electronics, advanced household appliances, and CNC machine tools.
