How to connect three pins potentiometer?

发布时间： 2024-08-15 11:26

概述：Potentiometer is a resistance element with three leads and the resistance value

Potentiometer is a resistance element with three leads and the resistance value can be adjusted according to a certain change law. The potentiometer is usually composed of a resistor body and a movable brush. When the brush moves along the resistor body, a resistance value or voltage related to the displacement is obtained at the output end.

role of potentiometer:

1. Used as a voltage divider

The potentiometer is a continuously adjustable resistor. When adjusting the potentiometer's rotating handle or sliding handle, the moving contact slides on the resistor body. At this time, the output end of the potentiometer can be obtained with the applied voltage of the potentiometer and the rotation angle or stroke of the movable arm.

2. Used as a rheostat

When the potentiometer is used as a rheostat, it should be connected to both ends of the device, so that within the stroke range of the potentiometer, a smooth and continuous change in resistance value can be obtained.

3. Used as a current controller

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

potentiometer three pin connection method:

1, potentiometer (or trimming resistor, etc.) regular pin (only for example, there are 3 pins of the potentiometer), the resistance value of the two ends is fixed, the middle pin to any end of the pin resistance value is variable;

2. It is equivalent to dividing the potentiometer into two resistors in series from the middle pin, and the total resistance in series is fixed;

3. Therefore, if it is used as a variable voltage dividing resistor, one end is connected to the input voltage, the middle end is connected to the output, and the remaining lower end is grounded.

4. If it is used as a variable resistor, one end is connected to the input voltage, the middle end is connected to the output, and the remaining lower end can be suspended or connected to the middle end.

Related News

Aerospace Defense Applications

In 2021, our materials laboratory successfully developed domestic

2023-09-25

Heavy Machinery Applications

At present, the performance of our sensors is comparable to that of European

2023-09-25

Application of agricultural instruments

In the field of agricultural machinery, our potentiometer and sensor products are far away from Germany

2023-09-25