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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 is dependent on coil resistance and current, and i…

    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 to actual load. For this reason, tests of special c…

    24 Oct 2018

  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 current bias from the skin effect, proximity effect…

    24 Oct 2018

  4. 236 – Magnetic Circuit Optimization for Plastic Magnets in an Axial Magnetic Field

    OverviewPlastic magnets are characterized by light weight with high strength and have a high degree of freedom in shaping, and very suitable for mass production.Anisotropic plastic magnets with good magnetic properties need magnetic field orientatio…

    24 Oct 2018

  5. 73 – Analysis of Capacitance of a Parallel Plate Capacitor

    OverviewCapacitors are widely used as basic passive components in a variety of electric circuits. Parallel plate capacitors are taken up as the subject matter for how to obtain capacitance, a basic electric property, because they follow simple pheno…

    24 Oct 2018

  6. 142 – Press Fit Analysis of a Divided Core

    OverviewSmaller size and higher output are being demanded of the motors used for applications such as air conditioning compressors. One production technique for achieving this is a higher lamination factor in divided cores. The stress caused by pres…

    24 Oct 2018

  7. 167 – Iron Loss Analysis of a Three Phase Induction Motor

    OverviewAn induction motor is a motor in which the rotating magnetic field of the stator coils causes induced current to flow in an auxiliary conductor, which produces force in the rotational direction.Induction motors are widely used in everything …

    24 Oct 2018

  8. 181 – Analysis of SR Motor Drive Characteristics

    OverviewWith the skyrocketing prices of rare earth magnets, expectations have been rising for SR (switched reluctance) motors because they have a motor format that does not use permanent magnets. SR motors have a simple structure that can achieve so…

    24 Oct 2018

  9. 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 may not necessarily be large but heat is generated…

    24 Oct 2018

  10. 20 – Sound Pressure Analysis of an SPM Motor

    OverviewAs electric motors are becoming more common, motors which create less noise are in high demand. Sound can be divided into categories of electromagnetic noise, mechanical noise, and draft noise, where electromagnetic noise is the most common …

    24 Oct 2018

  11. 195 – Torque characteristics analysis of three-phase induction motors using 3D correction function

    OverviewAn induction motor is a motor in which the rotating magnetic field of the stator winding causes induced current to flow in an secondary conductor, which exerts force on the rotor in the rotational direction and causes it to spin.In an induct…

    24 Oct 2018

  12. 253 – Analysis of an Induction Generator

    OverviewInduction machines are based on the double field revolving theory. An induction machine also operates using the principle of slip. Slip is defined as the difference between synchronous speed and operating speed where the synchronous speed is…

    15 May 2018

  13. 252 – Shape Optimization of a Solenoid Valve

    OverviewFor the good functioning of a solenoid valve, we want that the solenoid valve is as responsive as possible to the opening and closing commands. For this, we want to optimize the rise time of the solenoid valve's mover.But at the same time we…

    15 May 2018

  14. 251 – Vibration Analysis of an Alternator

    OverviewElectromagnetic force in the form of an electromagnetic excitation force acting on a motor or an alternator causes vibration and noise. Vibration and noise also are produced when this electromagnetic excitation force resonates with an eigenm…

    15 May 2018

  15. 250 – Dielectric Heating Analysis of a High-Frequency Preheater with Roller Electrodes

    OverviewWhen creating a resin mold with thermosetting resin, there is a method to in advance raise the resin temperature to just before the curing temperature. This allows molding using a small molding pressure.A high frequency preheater using diele…

    15 Apr 2018

  16. 244 – Analysis of Magnetic Field Intensity at Sensor Position

    OverviewIn controlling the position and speed of motors, actuators, etc., it is necessary to detect the position of moving parts and calculate command values based on those signals. Methods for sensing magnetic flux leakage generating from a target …

    15 Mar 2018

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