![]() ![]() Return to Basic Electronics Concepts menu. By passing conducting wires through the hole of the ring, the conducting wires and the ferrite core form a coil (inductor). Voltage Current Power Resistance Capacitance Inductance Transformers Decibel, dB Kirchoff's Laws Q, quality factor RF noise Waveforms It is used for its properties of high magnetic permeability coupled with low electrical conductivity (which helps prevent eddy currents). More Basic Electronics Concepts & Tutorials: In electronics, a ferrite core is a type of magnetic core made of ferrite on which the windings of electric transformers and other wound components such as inductors are formed. In this post we discuss the construction of a 5000 watt inverter circuit which incorporates a ferrite core transformer and therefore is hugely compact than the conventional iron core counterparts. Air cored inductors and transformers have lower levels of inductance and are often used for RF applications where lower levels of inductance are needed. ![]() The advantage of ferrite and iron cores is that they significantly increase the level of inductance and also in the case of a transformer, the coupling between the input and output inductors. While the basic inductor is widely used in many circuits, the transformer is also used in very many applications. Above figure shows a coil wound over a ferrite core. The ferrite core has a high magnetic permeability and has very low eddy current losses. The ferrite is a magnetic material which content particles of iron, cobalt or nickel insert in an insulator binder. Circuit symbols for inductors Transformer circuit symbols The constructional diagram of ferrite core inductors as shown in above figure. There are several formats indicating whether the inductor or transformer has a air core or a magnetic core. The circuit symbol for an inductor indicates the coil nature of the inductor. Inductance Symbols Lenz's law Self inductance Inductive reactance calculations Inductive reactance theory Inductance of wire & coils Transformers ![]() Inductance and Transformer Tutorial Includes: Inductor & Transformer Types & Circuit Symbols. ![]()
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