P0915N-QC15BR5K

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Rotary Potentiometers

A rotary potentiometer is an electrical device which is composed of a fixed resistor and a rotating contact, called a wiper.

The fixed resistor is fixed between two different resistances - a lower and a higher value. As the wiper is rotated across the surface of the fixed resistor, the resistance between the two points changes, thus altering the current in the circuit and making the electrical output vary in a linear or logarithmic fashion.

Rotary potentiometers are used to measure both position and rate. Common applications include position and rate feedback systems, such as speedometers, potentiometers in servo systems, and adjustment of motor speeds, etc.

Rotary potentiometers can also be used to control the current in an amplifier circuit, and to detect the output voltage from converters.

The most common type of rotary potentiometer is the single-turn potentiometer, which has a single circular track. Multiturn potentiometers have multiple tracks, allowing for greater resolution and a wider range of adjustment.

Rheostats

A rheostat is a variable resistor which is composed of a resistor wound around an adjustable tapping point. It is used to control current in a circuit, electric motors, and other devices.

Rheostats are typically composed of a wire or film wound around a core, such as a tube or rod. The wire or film has a tap at one end, which is connected to a potential difference, such as a voltage source or current source. As the tap moves along the resistor, the resistance changes, causing the current or voltage to vary.

Rheostats are used in a variety of applications in which it is necessary to adjust the current or voltage in a circuit. Some common uses include dimming lights, controlling electric motors, and regulating the flow of current in electronic circuit.

Rheostats are also used in a number of industrial applications, including voltage regulating, current controlling, and temperature sensing.

P0915N-QC15BR5K application field and working principle

The P0915N-QC15BR5K is a rotary potentiometer and rheostat combination device, featuring a resistor track that is divided into four sections - two for resistive components and two for rheostatic components.

The resistive components of the P0915N-QC15BR5K are used to measure both position and rate, while the rheostatic components are used to control current and voltage. The device is equipped with an adjustable contact, which allows the user to determine the desired amount of resistance for the desired application.

The P0915N-QC15BR5K is typically used in applications such as speedometers, servo systems, motor speed control, amplifier circuits, and voltage converters.

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