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October 10, 2025International Journal of Circuit Theory and Applications

Mutual Inductance Calculation Method of Circular Coils for an Arbitrary Position With Double‐Sided Toroidal Magnetic Medium

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Authors

QZQizhi ZhangCHChangxuan HuJYJiliang Yi

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Overview

Analytical method calculates mutual inductance for circular coils in arbitrary positions, indicating improved wireless power transfer.

Key Points

  • The proposed method accurately calculates mutual inductance, achieving an error not exceeding 4.46%.
  • Finite element simulations verified the method's effectiveness in determining mutual inductance for arbitrary coil positions.
  • The analytical formula developed utilizes three equivalent image current coils to simplify calculations.
  • This approach can optimize the design of toroidal magnetic media for enhanced power transfer efficiency.

Cite This Study

Zhang et al. (2025) studied this question.

synapsesocial.com/papers/68e861a57ef2f04ca37e4571https://doi.org/10.1002/cta.70179
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  4. 4A Physics‐Guided Data‐Driven Collaborative Method for Accurate Prediction of Mutual Inductance Between Rectangular Coils at Arbitrary Positions With Magnetic Media2026
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