What are the precautions for using adjustable potentiometers?
来源:Dongguan Yanghan Industrial Co., Ltd. 时间:2023-06-02
Potentiometer is an instrument commonly used in industrial production, equipment adjustable potentiometer, in today's production is more widely used. In some circuits that do not require frequent adjustment, it is used more often, by adjusting the resistance value to achieve the potential control. Its use also has the corresponding precautions, the following together to understand.
1. Specific use method
Potentiometer has two fixed adjustment points at both ends, representing the corresponding resistance range, can be manually adjusted to change the contact point, the position on the resistance to adjust the organization, thereby changing the size of the current and voltage. The principle of the general potentiometer is the same, except that this adjustable potentiometer, its positioning can be achieved to change, suitable for some specific occasions.
2. Notes on the use of
Generally speaking adjustable potentiometers can be installed directly on the circuit board, but the corresponding order needs to be ensured so as not to affect other parts. Potentiometers are generally installed on the potential board by welding, you need to pay attention to the temperature and time of welding to avoid damage to the potentiometer. The specific time and temperature need to check the corresponding product operating instructions machine welding and manual welding temperature difference, the time is also different. During the welding process, be careful not to subject the potentiometer to too much pressure, so as not to cause damage to the equipment. In addition, the choice of flux also has certain rules, need to pay attention to, do not let the flux into the potentiometer's internal, otherwise it will cause poor contact
Generally debuggable potentiometer applied in the use of voltage regulation of the circuit structure, so that the performance of the potentiometer can be guaranteed, otherwise it will affect the regulation of the current. If the temperature is too low, then when using the potentiometer, to prevent its surface frost or ice, the use of the environment must pay attention to the relatively dry, to do a good job of moisture-proof measures, otherwise it will affect the potentiometer insulation effect, may cause a short circuit.
The above are some of the precautions in the use of adjustable potentiometer, it has been relatively high degree of integration, only need to be installed on the circuit board through simple welding. Note that the above points can ensure normal use.
