A potentiometer usually consists of a resistive body and a movable brush. When the brush moves along the resistor body, the resistance value or voltage that has a certain relationship with the displacement is obtained at the output end.
Potentiometers can be used as both three-terminal components and two-terminal components. Because its function in the circuit is to obtain an output voltage that has a certain relationship with the input voltage (applied voltage), it is called a potentiometer.
Product Application
1. Used as a voltage divider
The potentiometer is a continuously adjustable resistor. When the rotary handle or sliding handle of the potentiometer is adjusted, the moving contact slides on the resistor body. At this time, the output voltage related to the applied voltage of the potentiometer and the angle or travel of the movable arm can be obtained at the output terminal of the potentiometer.
2. Used as a varistor
When the potentiometer is used as a rheostat, it should be connected into devices at both ends, so that a smooth and continuous resistance value can be obtained within the travel range of the potentiometer.
3. Used as a current controller
When the potentiometer is used as a current controller, one of the selected current output terminals must be a sliding contact terminal.
Advantages:
♥ Knob adjustment
♥ High sensitivity
♥ Stable performance
♥ Insulation flame retardant
♥ Strong anti-interference ability
♥ Strong conductivity
♥ Rust resistant material
♥ Overvoltage protection
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