Magnetic Field

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  1. [JAC046] Sensitivity Analysis of the Magnetization Pattern of an SPM Motor

    This Application Note presents the use of a magnetic field analysis to obtain the surface flux density for radial pattern, parallel anisotropic pattern, and polar anisotropy patte…

  2. [JAC105] Leakage Inductance Analysis of a Transformer

    This Application Note explains how to obtain self-inductance and leakage inductance for two types of secondary coiling in a transformer: uniform coiling and close coiling.

  3. [JAC044] Resistance Heating Analysis of a Steel Sheet

    This Application Note presents how to obtain the calculate current density distribution, Joule loss distribution and temperature distribution of steel sheet.

  4. [JAC109] Operating Time Analysis of an Electromagnetic Relay Accounting for Eddy Currents

    This Application Note presents the use of the motion equation function to evaluate the operating time of an electromagnetic relay with DC voltage drive. Eddy currents generated in…

  5. [JAC118] Thermal Analysis of a Bus Bar

    This Application Note presents how to obtain the temperature distribution in a bus bar or the like with changes in the power supply frequency.

  6. [JAC091] Iron Loss Analysis of an IPM Motor Including the Effects of Press Fitting Stress

    This Application Note presents modeling the press fitting of a core and frame with the Press Fit condition and then obtaining the iron loss density of an IPM motor with and withou…

  7. [JAC103] Efficiency Analysis of a Permanent Magnet Synchronous Motor

    In this example, how to obtain the efficiency with a sinusoidal wave voltage drive at a rotation speed of 1,800 r/min and voltage amplitude of 40 V.

  8. [JAC102] Magnetic Field Analysis of a Magnetic Sensor

    This Application Note presents how to obtain the magnetic flux density distribution at points in the horizontal and vertical directions away from the magnet.

  9. [JAC101] AL-value Current Characteristics Analysis of a Choke Coil

    This note presents the use of a magnetic field analysis to obtain the AL-value current properties of a choke coil.

  10. [JAC100] Surface Heating Analysis of a Steel Plate

    This Application Note presents how to confirm the uniformity of the surface temperature distribution in the steel plate facing the coil and check for an eddy current loss density …

  11. [JAC104] Thrust Force Analysis of a Linear Induction Motor

    This Application Note presents how to obtain thrust force characteristics for a linear inductance motor.

  12. [JAC098] Response Analysis of a Solenoid Valve Using a Control Simulator and the JMAG-RT

    This note presents how JMAG-RT can be used to calculate attraction forces and coil inductance that varies with harmonic and current. The result is the JMAG-RT model used as a refe…

  13. [JAC048] High-Frequency Induction Heating Analysis of a Printer Roller

    This Application Note confirms the non-uniformity in temperature distribution produced by an assumed coil geometry, as well as the temperature elevation in each part caused by rot…

  14. [JAC099] Superimposed Direct Current Characteristics Analysis of a High Current Reactor

    This Application Note presents how to obtain a high-current reactor’s superimposed direct current characteristics when the gap length is varied.

  15. [JAC090] Analysis of the Effect of PWM on the Iron Loss of an IPM Motor

    This Application Note demonstrates a case study where the effects of a carrier harmonic against an IPM motor’s iron loss is confirmed using estimated harmonic current waveform as …

  16. [JAC095] Analysis of a Universal Motor

    This note presents how the characteristics of a universal motor can be obtained, including torque versus current (T-I), torque versus speed (T-N), and magnetic flux density distri…

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