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What are the common uses of rotary switches?


Knob switch is a common electronic switch, which mainly consists of a knob, switch mechanism, and fixed base. The working principle of a rotary switch is to rotate the knob to connect or disconnect the internal switch mechanism from the circuit, in order to achieve electrical switch control.

Common uses:

1. Lamp switch

Knob switch is one of the common control methods for lighting fixtures. By rotating the knob, the brightness of the lamp can be adjusted or the lamp can be turned on or off. Common lighting switches include single control knob switch, dual control knob switch, three control knob switch, etc.

2. Electric fan speed control switch

Electric fan speed controllers usually also use rotary switches. By rotating the knob, the speed of the electric fan can be adjusted to achieve different air volume and speed control.

3. Electric kettle switch

Electric kettles usually use rotary switches to control heating and insulation functions. By rotating the knob, the heating or insulation time and temperature of the kettle can be controlled.

4. Audio equipment adjustment switch

Knob switches are also commonly used for adjusting audio equipment, such as volume, bass, treble, etc. By rotating the knob, the volume and sound quality of the audio equipment can be adjusted.

5. Car knob switch

The control switches for air conditioning, audio, seat adjustment, etc. in cars usually use rotary switches. By rotating the knob, various functions of the car can be finely adjusted.

In summary, a rotary switch is a common electronic switch that works by rotating the knob to control the switch mechanism to turn on or off the circuit, thereby achieving electrical switch control. Knob switches are widely used in various electrical and electronic devices, such as lighting fixtures, electric fans, electric kettles, cars, and audio equipment.