Parasitics of Orthocyclic Windings in Inductors and Transformers

Orthocyclic winding in magnetic components is common both laboratory prototyping and mass production, especially for round wires with curved edges. However, its impact on parasitics, i.e., capacitance, ac resistance, leakage inductance, has not been systematically investigated yet. Omission or inaccurate calculation of these parameters leads to current ringing, additional losses, even abnormal operations. In this article, three modified formulas parasitics orthocyclic windings are proposed, the impacts comprehensively studied. Magnetic field distortion air-gap effect analyzed compensated. The verified by finite-element method (FEM) simulation experimental results. Finally, normal compared, conclusions listed illustrate parasitics.