Coupled resonant circuit - QuickField simulation example
Example courtesy of Milan Ćuković.
This is essentially an air core transformer. One coil is energized and the other coil is connected to the load. We are going to change the distance between coils and the AC voltage frequency. The task is to measure the transfer function.
How to find resonance of coupled air-core coils?
Answer Typical applications Geometry
Given
Task
Solution
Results
Engineering question
Set up an axisymmetric QuickField AC Magnetics problem for coupled air-core coils and evaluate resonance characteristics from computed field results.
coupled air-core coils, resonant inductive coils, wireless power coils
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Simulation problem
Problem Type
Axisymmetric problem of AC magnetics.
Copper electric conductivity 59.6 MS/m
Voltage source 5 V (r.m.s. value), frequency sweep f = 1.. 21 kHz
Calculate the transfer function for different coil spacing ΔX and AC frequency f.
Voltage source is applied to the Coil #1. Coil #1 current and Coil #2 current magnitude and phase are measured.
The set of QuickField problems is automatically generated by the Label Mover tool.
Magnetic field distribution and induced currents
Video
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