The potentiometer is a resistance element having three terminals and the resistance value can be adjusted according to a certain variation rule. Potentiometers usually consist of a resistor and a movable brush. When the brush moves along the resistor body, a resistance value or voltage which is in a certain relationship with the displacement amount is obtained at the output end.
The potentiometer can be used as a three-terminal component or as a two-terminal component. The latter can be regarded as a variable resistor, and since it functions in the circuit to obtain an output voltage which is related to the input voltage (applied voltage), it is called a potentiometer.
The role of the potentiometer - adjust the voltage (including DC voltage and signal voltage) and the magnitude of the current. The structural characteristics of the potentiometer - the resistor body of the potentiometer has two fixed ends. By manually adjusting the rotating shaft or the sliding handle, changing the position of the moving contact on the resistor body changes the moving contact between any fixed end and the fixed end. The resistance value, which changes the magnitude of the voltage and current.
A potentiometer is an adjustable electronic component. It consists of a resistor body and a rotating or sliding system. When a voltage is applied between the two fixed contacts of the resistor body, the position of the contact on the resistor body is changed by a rotating or sliding system, and a position of the movable contact is obtained between the movable contact and the fixed contact. A voltage that has a certain relationship. It is mostly used as a voltage divider, when the potentiometer is a four-terminal component. Potentiometers are basically sliding varistor, there are several styles, generally used in the speaker volume switch and laser head power size adjustment, potentiometer is a kind of adjustable electronic components.
Variable resistor for voltage division. On the exposed resistor body, one or two movable metal contacts are pressed. The contact position determines the resistance between either end of the resistor body and the contact. According to the material branch winding, carbon film, solid core potentiometer; according to the relationship between the output and input voltage ratio and the rotation angle, the linear potentiometer (linear relationship), the function potentiometer (in a curve relationship). The main parameters are resistance, tolerance, and rated power. Widely used in electronic equipment, for volume control in audio and receiver.
Potentiometer working principleWhen a voltage is applied to the two fixed electric shocks of the resistor body, the position of the contact on the resistor body is changed by the rotation or the bone movement system, and a position of the movable contact is obtained between the movable contact point and the fixed contact point. A voltage that has a certain relationship. It is mostly used as a voltage divider, which is a potentiometer that is a four-terminal component. The potentiometer is basically a sliding varistor. There are several styles, which are generally used in the speaker volume switch and the laser head power level adjustment potentiometer is an adjustable electronic component.
It consists of a resistor body and a rotating or sliding system. When a voltage is applied to the two fixed electric shocks of the resistor body, the position of the contact on the resistor body is changed by the rotation or sliding system, and a position of the movable contact is obtained between the movable contact and the fixed contact. A voltage that has a certain relationship.
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