What is the wiring method of potentiometer
For general potentiometer, near the center is a vane, center head is inside a resistance wire, with two pins on both ends of the resistance wire connected directly, the two pins are connected the input signal and ground (some don’t pick up), even the input signal, such as a pin another pin grounding, the resistance wire on the two pieces at this time there will be a total resistance value, A change in resistance can be obtained by sliding a slide across the wire, but if the input and output signals are connected in opposite directions, the slide moves in the opposite direction.
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Two, how is the working principle of potentiometer
Potentiometer is a variable resistor used for voltage division. One or two removable metal contacts are pressed tightly against the exposed resistance body. Contact position Determines the resistance between any end of the resistance body and the contact. According to the material wire winding, carbon film, solid core potentiometer; Press output and input voltage ratio and the relation of rotation Angle cent linear potentiometer (show linear relation), function potentiometer (show curving relation). The main parameters are resistance, tolerance and rated power. Widely used in electronic equipment, sound and receiver for volume control.
Working principle: when a voltage is applied between the two fixed contacts of the resistance body, the position of the contact on the resistance body is changed by rotating or sliding system, and a voltage with a certain relationship between the moving contact and the fixed contact can be obtained. It is mostly used as a voltage divider, which is a potentiometer and is a four-terminal element. Potentiometer is basically sliding rheostat, there are several styles, generally used in the sound box volume switch and laser head power size adjustment potentiometer is a kind of adjustable electronic components. It consists of a resistance body and a rotating or sliding system. When a voltage is applied between the two fixed contacts of the resistance body, the position of the contact on the resistance body can be changed by rotating or sliding system, and a voltage which is related to the position of the moving contact can be obtained between the moving contact and the fixed contact.