Location:Home Page > Archive Archive

The distribution parameters for magnetic components should be used by specialists in switching power supplies.


Click on image above to go to article about Double 12 event


  • Importance of magnetic components in power converters

  • Design Considerations and Appropriate Models for Magnetic Components

  • Influence of magnetic component model parameters on circuit characteristics

  • Eddy current (field) characteristics of a transformer - effect of losses

  • Magnetic (field) characteristics of transformers - inductive action

  • Electrical (field) characteristics of transformers - capacitive action

  • Electromagnetic characteristics in power converters

  • Function: plays role of transferring and storing magnetic energy, which is an important component

  • Features: large volume, large weight, large loss, strong impact on circuit performance

  • Problem: Strongly affects power density of converter and becomes a bottleneck in development

  • Power conversion technology and magnetic components

  • Topologies: direct, flyback, push-pull, full bridge phase shift, LLC, etc., magnetic integration, magnetic coupling;

  • Control: control chip control circuit, transformer filter line;

  • Packaging: PCB winding, synchronous MOS winding, ultra-thin magnetic components;

  • Components: active devices, capacitors, magnetic components (custom design);

  • Simulation: circuit model, device model (IC, MOS, diode, capacitor, magnetic components);

  • EMC: layout, EMI filter, distributed parameters, near field communication;

  • Production: automation, magnetic components (handmade)

  • Quality: testing of magnetic components, failure analysis.

  • Magnetic component model

    Transformer model

    Inductor model

    Real working form of a flyback converter

    Signal and converter parameters in DCM

    Signal and converter parameters in CCM

    Effect of inductive distributed capacitance EPC on losses

    Characteristics of distribution of magnetic field / eddy current fields in transformer

    Eddy current loss characteristics of a copper foil conductor

    Reducing losses in transformer winding - the main design aspects

    Distribution of magnetic field and current density in various winding structures

    Distributed capacitance of EPC winding

    The mechanism of formation of distributed capacitance of inductor winding

    Influence of different ways of winding an inductor on distributed capacitance

    Basic Distributed Capacity Calculation Method

    Approximate theoretical calculation of distributed capacitance of a coil

    Distributed capacitance of a multilayer coil

    Distributed winding capacitance with screen

    Distributed capacitance characteristics of a segmented winding

    Charge distribution and distributed capacitance inside a transformer

    Charge distribution inside a shielded transformer

    Transformer secondary bias


  • Magnetic component technology is very important for power converters;

  • The distribution parameters of magnetic components have an important influence on characteristics of circuit (efficiency, power density and reliability);

  • From level of magnetic field, electric field and eddy current field inside magnetic component, one can more deeply and fully understand parameters of magnetic component.