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Wiring Method and Basic Knowledge of Rotating Potentiometer
Date:2018-12-29 Views:392
Rotary potentiometers are mostly used in volume, frequency, temperature, speed and other adjustments. However, the rotating potentiometer is usually manually adjusted by the handle, which can change the size of the current control. So do you know how to connect potentiometers in operation? If the connection operation is wrong, in order to avoid the occurrence of faults. So presumably you do not know the connection method of rotary potentiometer, so the following will give a detailed explanation of the connection method and basic knowledge of precision rotary potentiometer.

Wiring method of rotary encoder potentiometer

Rotating potentiometers are generally used for volume control. They have three terminals. The left terminal is usually connected to the ground line. The middle terminal is that the output terminal of the signal can be suspended without connection, while the right terminal is connected to the signal input line. When the handle of the rotary potentiometer is rotated, the signals from the intermediate terminal and the ground terminal will form the signal source of the circuit to realize the function of controlling increasing or decreasing. (Note: In connection, we should pay attention to the left and right terminals can not be misconnected, so as not to easily lead to failure. )

Basic Knowledge of rotary encoder potentiometer

Details 1. In order to ensure the safety performance of potentiometers, it is necessary to carefully check whether there are hidden dangers before using potentiometers, such as whether the lead-out terminals of potentiometers are loose, whether the contacts are good and reliable, and if there are loose contacts which cause bad contacts, it is very easy to lead to potentiometer failure. Moreover, the potentiometer that does not meet the requirements can not be installed and used forcibly, otherwise it is easy to cause damage to the potentiometer.

Details 2. When installing the rotary encoder potentiometer, fix the potentiometer firmly with fastening parts, so that the potentiometer can not be loosened. Otherwise, there will be loosening, which will easily lead to the potentiometer in the circuit and other components to collide, resulting in failure.

Details 3. In order to prolong the service life of precision rotary potentiometer, generally in the operation and regulation of the potential, do not rotate the handle of the potentiometer too hard, in order to avoid the possibility that the handle will fall off or be damaged easily by too much force. In addition, if it is not necessary to use the potentiometer, do not rotate the handle of the potentiometer casually, so as not to affect the service life of the potentiometer. Because each rotation will wear the internal axis of the potentiometer, when a certain number of times, it will lead to the damage of the potentiometer axis and can not be used.

Details 4. Potentiometer in the welding process, please pay attention to avoid flux intrusion into the precision rotary potentiometer, otherwise it will cause brush and resistor contact bad, which will affect the potentiometer in the regulation of some noise and other conditions. However, after the potentiometer is welded, the excess solder left at each end of the foot must be removed, otherwise it will affect the performance of the potentiometer.