Transformer / Reactor

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  1. 235 – Reactor Core Stray Loss Analysis

    OverviewWhen designing a high-frequency reactor which is a key component in a converter, inductance and loss, which are parameters required for voltage conversion, are important factors. Copper loss …

    24 Oct 2018

  2. 203 – No-Load Test Analysis of Power Transformer

    OverviewLarge-scale power transformers are expected to be highly-reliable as machinery that will support the industry infrastructure, but unfortunately, it is impossible to conduct tests connecting t…

  3. 221 – Confirmation of the Influence in the Reduction of High-Frequency Resistance of a Magnetically Plated Wire Choke Coil

    OverviewA choke coil is an electronic component aimed at filtering high frequency current. The current generated inside a choke coil has a distribution in a single wire, and among the wires, due to c…

  4. 202 – Core Stray Loss Analysis of Power Transformer

    OverviewStray loss is mainly caused by leakage flux from winding, but structures closer to the winding will tend to be affected easier by leakage flux. The ratio of stray loss relative to all losses …

  5. 238 – Hysteresis Loss Analysis in a Reactor with DC Bias

    OverviewWhen designing a high-frequency reactor which is a key component in a converter, inductance and loss, which are parameters required for voltage conversion, are important factors.A reactor are…

    14 Mar 2018

  6. 232 – AC Loss Analysis of a Reactor

    OverviewIn designing a high-frequency reactor that is a key component of the converter, inductance and loss, which are parameters required for voltage conversion, are important factors.An airgap has …

    13 Mar 2018

  7. 206 – Temperature Analysis of an Oil-Immersed Transformer Using a Coupled Magnetic Field and Thermal Fluid Analysis

    OverviewLarge power transformers are used to transform high voltage power generated at a power station into power that can be transmitted. For the structure of the transformer, oil-immersed transform…

    9 Mar 2018

  8. 204 – Copper Loss Reduction Effect Analysis of Switching Transformers using Litz Wire

    OverviewFlyback converters are used for various applications such as power supply circuits, which is suitable for small electrical power that realizes switching power supply. Since there are not many…

  9. 185 – Analysis of Stray Loss in a Power Transformer

    OverviewTransformers are made to be used long-term, so it has become an important design policy to control running costs from losses. These losses include copper loss in the coil and iron loss in the…

    8 Mar 2018

  10. 184 – Reactor Sound Pressure Analysis taking Magnetostriction into Account

    OverviewReactors are used in all sorts of systems related to power systems. For example, they fill the role of making the current pulsation between an inverter and a motor smoother. Reactor vibration…

  11. 107 – Current voltage characteristics analysis of flyback converters

    OverviewDC-DC converters such as flyback converters control current of primary / secondary winding with switch operation, and transmit electrical power on the load side using diodes and condensers. D…

    2 Dec 2014

  12. 151 – Insulation Evaluation Analysis of a Power Transformer

    OverviewA transformer is an electrical device that uses electromagnetic induction to convert the voltage level of alternating current power. Among transformers, power transformers that are used in po…

    12 Jul 2011

  13. 152 – Electromagnetic Force Analysis of Short-circuited Power Transformer Coils

    OverviewA transformer is an electrical device that uses electromagnetic induction to convert the voltage level of alternating current power. Electromagnetic force is produced by the current and magne…

  14. 158 – Superimposed Direct Current Characteristic Analysis of a Reactor That Accounts for Minor Hysteresis Loops

    OverviewHigh-frequency reactors used in equipment like DC-DC converters have a high-frequency current accompanying the switching direct current. The reactor's performance requires a stable inductance…

    27 Dec 2010

  15. 146 – Analysis of Stray Loss in a Transformer

    Transformers are made to be used long-term, so it has become an important design policy to control running costs from losses. These losses include copper loss in the coil and iron loss in the core. I…

    13 Oct 2010

  16. 148 – Loss Analysis of a Power Transformer (Flyback Converter)

    OverviewA flyback converter is a well-known system for small capacity power supplies in the several-dozen W class. They are cheap and have a simple structure, so they are widely used as converters fo…

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