Resonant circuit current calulation

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SUMMARY

The discussion focuses on calculating the current in a resonant circuit using known parameters from a left circuit, specifically current (I1), inductances (L1, L2), and capacitances (C1, C2). The user attempts to apply impedance and Ohm's Law, defining Z2 as the sum of capacitive reactance (Xc) and inductive reactance (XL). The proposed formula for calculating the secondary current (I2) is I2 = U2/Z2 = (w^2 * M * C * L * I1) / (L * w^2 - C), but the user acknowledges discrepancies with simulator results, indicating a need for load impedance in the secondary circuit for accurate calculations.

PREREQUISITES
  • Understanding of resonant circuits and their components (inductors and capacitors)
  • Familiarity with impedance calculations in AC circuits
  • Knowledge of mutual inductance and its role in circuit analysis
  • Proficiency in using circuit simulation tools for verification
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  • Research load impedance calculations in resonant circuits
  • Explore the effects of mutual inductance on circuit behavior
  • Learn about advanced impedance analysis techniques
  • Investigate circuit simulation software options for accurate modeling
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Electrical engineers, circuit designers, and students studying resonant circuits who need to understand current calculations and impedance analysis.

raoxas
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hello, collegues,

I need to calculate current on the right circuit, but I don't really know how.

I have the current in left circuit I and L1 L2 C1 C2.

I have tried to calculate this using impedance and ohms law. As Z2=Xc+XL, and U2=jwM, where M - mutual inductance

I think that I2 should be I2=U2/Z2=w^2 M C L I1 / (Lw^2 - c)

p.s. I know I1. Its U1/impedance

but i see from the simulator that I am wrong.. please, could you help me?

I add SH
BpZYq.jpg
 
Last edited:
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I think we need the load impedance in the secondary circuit in order to calculate the current.
 

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