Carbon Potentiometer PCBs are Like Voltage Dividers, A voltage divider is a simple circuit that can be used to reduce the voltage in a circuit. To calculate the output voltage of a voltage divider. The output voltage is taken from a point between the two resistors. The output voltage depends on the ratio of two resistors connected in series.
Types of Carbon Potentiometer PCB?
Rotary Potentiometer PCB : Combine the conductive carbon resistive into the PCB, the most common type of potentiometer. They use a rotary knob to move the wiper around the thick film carbon resistor printed on the PCB.
Linear Potentiometer PCB : Combine the conductive carbon resistive into the PCB, consist of a linear slider that controls the position of the wiper, Sliding along the thick film carbon resistor printed on the PCB
How does a Carbon Potentiometer PCB work?
Carbon Potentiometer PCB work by having a resistive element on the PCB. Both end terminals are attached to thick film resistor, and do not move. The wiper travels along the resistor strip when the knob is turned. The closer the wiper is to the end terminal it is wired in conjunction with, the less the resistance, because the path of the current will be shorter. The further away it moves from the terminal, the greater the resistance will be.
By the way, We also provided custom Multi-Wire Wipers (contacts) for customer if needs, we can manufacture the wipers according to customer's drawing design requirements or specification. More information about wipers , Please refer to Multi-Wire Wipers.