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Pcb Coil Design Program10/27/2022 The key parameters include the inductance and may also include the resistance capacitance resonant frequency and the Q factor, the width of the peak around the resonant frequency. If your device includes an inductor, it is crucial to know some characteristics of the inductor to understand fully how your device functions as a whole. A traffic light that conveniently changes as you approach could well be an inductive sensor helping you on your way! Optimizing an Inductor Design by Characterization Inductors also play important roles in many key parts of daily life, such as switched power supplies and matching circuits connected to RF antennae. #Pcb Coil Design Program seriesWhen used with an alternating current, an inductor alone can function as a low-pass filter or in series with a capacitor as a resonant filter or bandpass filter. In fact, a 3D inductor can often be well understood by an RLC circuit model or some extension thereof.Īn equivalent circuit that can mimic the behavior of a real inductor.Īlone, or in combination with other circuit elements such as capacitors or resistors, the property of inductance can be applied in all sorts of applications. Unfortunately, we do not inhabit an ideal world and real inductors also display resistive effects (important at low frequencies and characterized by resistance, R) and capacitive effects (important at high frequencies and characterized by capacitance, C), which cause self resonance. Inductance is the parameter that measures to what degree a change in current flow is opposed and is usually denoted by L, which would completely characterize an ideal inductor. A change in the current also changes the magnetic flux through the winding, producing a potential across the winding that opposes the change in current. The red arrows show the current direction and the blue arrows show the magnetic field outside of the core. Its action depends on the concept of inductance, whereby a magnetic field established around the inductor opposes the change of current flow through the device.Ī simple inductor, consisting of a copper winding around an iron core. The Basic Physical Principles of an InductorĪn inductor, at its simplest, takes the form of a conducting wire (the winding or coil) wrapped around a chunk of typically magnetic material (the core). With the tools provided by the AC/DC Module in COMSOL Multiphysics, you can model and design an inductor in a straightforward yet accurate way, as well as calculate the device characteristics your application demands. Inductive devices exhibit a range of electromagnetic effects that have to be taken into account when they are utilized as part of any application.
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