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Fixed Inductors: LQW18AN10NG10D application field and working principle

Fixed inductors are electronic components with characteristics of high inductance, stability, and low resistance. The LQW18AN10NG10D is one of the most advanced inductors produced by TDK Corporation. It has a variety of applications and a simple working principle.

Application Areas:

• Power supply line noise suppression
• DC/DC converters
• Switched-mode power supplies
• High frequency applications
• Automotive applications

The LQW18AN10NG10D is a fixed inductor, which means that its inductance remains constant over a wide range of frequencies. This makes it suitable for both high and low-frequency electronic circuit designs. It features a high current measurement of 10A and a low-resistance measurement of 0.1 ohms. Additionally, its high-frequency characteristics up to 1GHz make it ideal for automotive applications.

Working Principle:

The working principle of a fixed inductor is fairly straightforward. It is based on the principle of Faraday’s Law of Induction, which states that the greater the rate of change of magnetic flux, the higher the induced electromotive force (emf) in a conductor.

This is the phenomenon responsible for creating the magnetic field within the inductor. As current passes through the inductor, a magnetic field is established around it. This magnetic field then induces an emf in the inductor, which opposes the current flowing through it. As such, the magnitude of inductance depends on the current as well as the magnetic field generated.

For a fixed inductor, the inductance remains constant, regardless of the applied voltage. Therefore, it’s possible to use it to reduce noise and ripple in a power supply line. Additionally, the low resistance of the LQW18AN10NG10D allows for efficient energy consumption in high-frequency applications, making it suitable for automotive applications.

Conclusion:

The LQW18AN10NG10D is a high-performance fixed inductor, with a variety of applications including power supply line noise suppression, DC/DC converters, switched-mode power supplies, and high frequency applications. Its low resistance and high current rating make it ideal for automotive applications. The working principle of the LQW18AN10NG10D is based on the Faraday’s Law of Induction, which states that the greater the rate of change of magnetic flux, the higher the induced electromotive force in a conductor.

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