What is a rotary switching potentiometer?
Potentiometers are essential electronic components that consist of various elements. These elements include a shell, a sliding shaft, a resistor, and three lead-out terminals. There are different types of potentiometers classified based on their mode of operation. The first classification distinguishes between rotary (or rotary) potentiometers and direct sliding potentiometers. Another classification is based on the number of links, categorizing potentiometers as either single-connected or multi-connected. Additionally, potentiometers can also have switches, leading to the term "rotary switched potentiometer" to differentiate them from those without switches. It's important to have a clear understanding of these classifications to select the appropriate potentiometer for a given application.
Adjustment Method of Rotary Switched Potentiometer
The rotary switching potentiometer is a device that employs a regulation method, which usually requires a symmetrical power supply - both positive and negative - in its circuit. When the potentiometer's central contact (C) slides to potentiometer A, the output voltage of OUT to the ground is +12V. Conversely, when C slides to potentiometer B, the output voltage of OUT to the ground becomes -12V. The potentiometer's output can be adjusted within the 0-V range. The volume of the potentiometer's central contact is smallest when it slides to potentiometer B, while it reaches its maximum when it slides to potentiometer A. However, once C reaches potentiometer B, poor contact and other such problems can arise. This can cause the regulated volume of the potentiometer to not close, thus compromising its overall functionality.