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What does a potentiometer do

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What does a potentiometer do

Date of release:2018-11-29 Author: Click:


Functions of potentiometer:



1. Used as voltage divider



The potentiometer is a continuously adjustable resistor, and when the potentiometer's swivel or slider is adjusted, the moving contact slides over the resistor body. At this time, the output voltage which is related to the applied voltage of the potentiometer and the rotation Angle or stroke of the movable arm can be obtained at the output end of the potentiometer.



2. Used as rheostat



When the potentiometer is used as a current controller, one of the selected current outputs must be the sliding contact outlet.



3. Used as current controller



When a potentiometer is used as a rheostat, it should be connected to a two-terminal device so that a smooth, continuously varying resistance value can be obtained within the travel range of the potentiometer.


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