DS1869S-10

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Data acquisition systems are an integral part of many industrial process control systems. Digital potentiometers such as the DS1869S-10 are an excellent way to control variable speed/load motor drives, increase motor torque, and improve component life when used in motors and other DC motor control applications. The DS1869S-10 can be used to adjust speed-torque curves for drive systems ranging from sub-fractional horsepower to heavy industrial machinery. This article looks at the application field and working principle of the DS1869S-10.

Application

The DS1869S-10 is a versatile digital potentiometer that can be used in a number of applications including motor speed control, motor torque control, motor free running, current control, DC power supply control, and more. The DS1869S-10 is designed to be used as an adjustable component within other electronic circuits or systems. It features an internal voltage reference, providing adjustable voltage ranges from 0 to 10 volts, and can be operated with any supply voltage up to 18 volts. With its integrated voltage reference, the DS1869S-10 can be used to accurately adjust motor speed-torque curves without the need for ladders or special motor driving circuitry.

The DS1869S-10 is suitable for use in sub-fractional horsepower motors and other DC motor control applications including solar applications, elevators, relays, locks and switches, and automotive emergency systems. The adjustable output range, low temperature drift, and high accuracy make it an ideal choice for industrial motor control applications.

Operation

The DS1869S-10 digital potentiometer is operated by applying a voltage on its two control pins. The voltage applied on the control pins is converted to a digital code that determines the output voltage of the device. The response of the device is linear and a 10-bit digital value is used to adjust the output voltage, giving the device a resolution of 0.1%. The digital response is achieved with a combination of current sources, a digitally controlled voltage source, and an array of digital switches.

The DS1869S-10 has a selector switch that allows the user to select either linear or exponential control. With the linear setting, the output voltage will be proportional to the control voltage, while with the exponential setting, the output voltage will increase exponentially as the control voltage increases. This feature can be used to fine tune the response characteristics of the device, making it ideal for industrial applications such as motor control.

The DS1869S-10 also has a built-in temperature sensor that can be used to monitor the temperature of the device and protect it from overheating. This is especially useful for applications such as motor control where the device is used in high temperature environments.

Advantages

The DS1869S-10 digital potentiometer is a highly efficient digital component designed to provide reliable and accurate speed-torque control in a variety of applications. The adjustable output range and low temperature drift make it ideal for controlling motor speed-torque curves while the integrated voltage reference eliminates the need for ladders or special motor driving circuitry. The built-in temperature sensor provides an additional layer of protection and allows the device to monitor its own temperature and respond accordingly.

The DS1869S-10 is a cost-effective solution for a wide range of industrial motor control applications and can be used to precisely adjust speed-torque curves for drive systems ranging from sub-fractional horsepower to heavy industrial machinery. Its highly efficient design provides reliable and accurate performance, making it an excellent choice for industrial motor control applications.

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