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Basics of Investigating Inductor Requirements For Power And RF/Microwaves Designs

Inductors are key circuit elements in many electronic designs, from power and voltage-conversion circuits to higher-frequency RF/microwave circuits. Selecting an inductor that is a good fit for a particular circuit design requires a clear understand­ing of inductor characteristics and how they are portrayed on product data sheets. Often referred to as coils, inductors resist changes in current by producing an electro­magnetic (EM) field. Inductors are important components in many different circuits, including for chokes, filters, and impedance-matching functions.

Making an optimum choice of inductor for an application is a matter of understanding essential inductor performance parameters and how to compare them for different prod­ucts on different data sheets. In this guide we review those parameters and mechanical properties.

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