CMU5052E

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Rotary potentiometers and rheostats are electrical components which are used to adjust the output current or voltage of a device. The CMU5052E rotary potentiometer was developed to meet the increasing demand for precision power control applications in industrial, automotive and home automation applications. The CMU5052E is the first ultra-high precision, digital, high voltage, rotary potentiometer available in the consumer market.

The CMU5052E rotary potentiometer is composed of an adjustable mechanical tap and an electronic full-scale rotary switch. The tap is attached to a circular contact disk and the rotary wafer is connected to the contact disk, all located within a sealed housing. When the wafer is rotated, the contact forces are configured at different angles, resulting in a complex and non-linear output waveform. The mechanical range of the tap can vary from 5-1000 ohms, while the electronic range is adjustable from 0.2-100 volts.

To ensure high performance and consistent results, the CMU5052E leverages a digital algorithm to monitor the position of the wafer and adjust the output current or voltage accordingly. This discrete algorithm, known as the Digital Rotary Control (DRC) system, uses an ad hoc digital signal control (ADSC) approach to provide a smooth, highly accurate and stable transition of the full-scale rotary switch. The DRC system can also be used to ensure maximum efficiency and fast response times in critical applications.

In order to ensure constant output over a wide temperature range, the CMU5052E can be programmed to adjust its sensitivity according to the operating condition, allowing for precise tuning and optimization. The CMU5052E also features a three-wire configuration which allows for remote sensing of the output voltage through an external sensing line. This sensing line provides additional protection against unstable conditions and helps maintain the programmed settings.

Although the CMU5052E is a highly integrated device, the device can be interfaced with external components such as controllers and switches to expand its functionality. Furthermore, the CMU5052E can be easily integrated into existing motor and power control applications with minimal additional hardware and software development. This helps to minimize cost and time to market and provides improved system reliability and accuracy.

Due to its high precision, versatility, and efficiency, the CMU5052E rotary potentiometer is an ideal solution for a variety of applications. These include speed, position, torque, pressure, current, and voltage control, as well as motor speed and power control. The device can also be an effective solution for boosting the accuracy of test and measurement systems, energy management systems, and precision power and energy management applications.

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