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Fixed Inductors

Fixed inductors, also commonly referred to as chokes, inductors, or adjustable inductors, are integrated circuits (ICs) consisting of the inductor, a small resistor, a diode, and a transistor. Fixed inductors are used in a variety of applications, including power supply, filtering, and noise suppression.

UP2UC-681-R Application Field and Working Principle

The UP2UC-681-R is a fixed inductor designed specifically for microprocessor cores. It is specifically designed to provide a high-speed high-frequency signal circuit with low ripple noise. The UP2UC-681-R can be used in a wide range of applications, such as low voltage power supplies, RF signal circuits, and other digital logic circuits.

The UP2UC-681-R is a precision fixed inductor with an inductance range of 0.22-18.2μH. The inductance is adjusted via the metal oxide varistor (MOV) on the back of the inductor. The MOV controls the current flow through the inductor, thereby allowing for precise adjustment of the inductance. The UP2UC-681-R also has a high surge current rating of 36A and an operating temperature range of -40°C -125°C.

The UP2UC-681-R has a unique working principle. The working principle of the UP2UC-681-R can be divided into two parts, the impedance control and the oscillation control. The impedance control is achieved by controlling the current flowing through the inductor via the MOV. When the MOV is adjusted, the current flowing through the inductor increases or decreases, resulting in a change in the inductance. The oscillation control is achieved by the feedback of the signal circuit. The signal circuit produces a signal which is sent back through the inductor, creating an oscillation control loop. This loop results in a steady or consistent frequency of the signal.

The UP2UC-681-R is a versatile fixed inductor designed to operate in a wide range of applications. Its unique working principle allows for precise inductance control and steady oscillation frequency of the signal. The UP2UC-681-R is an excellent choice for applications such as power supplies, RF signal circuits, and digital logic circuits.

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