Basic Characteristic Analysis

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  1. 3 – Analysis of a Permanent Magnet Brush Motor

    This document introduces how the characteristics of the brush-type PM motor can be obtained, including torque versus current (T-I), torque versus speed (T-N), and magnetic flux de…

  2. 1 – Torque Characteristic Analysis of a Three Phase Induction Motor

    This Application Note introduces a case example of how to obtain the current density distribution of an auxiliary conductor and its rotation speed versus torque characteristics.

  3. 16 – Analysis of a Hybrid Stepper Motor

    This document introduces how the detent torque and stiffness torque can be calculated for a hybrid stepper motor.

  4. 28 – Magnetic Field Analysis of a Speed Sensor

    This Application Note presents the use of magnetic field analysis to evaluate the variation of the voltage signal of a magnetic speed sensor for a range of air gap distances.

  5. 32 – Analysis of a Transformer

    This Application Note presents the use of a magnetic field analysis to evaluate changes in the secondary voltage caused by load variations in a low frequency transformer.

  6. 65 – Static Thrust Analysis of a Voice Coil Motor

    This Application Note explains how to obtain the current characteristics and the translation position characteristics of the static thrust in a voice coil motor, which is a type o…

  7. 68 – Speed Versus Torque Characteristic Analysis of a Three-Phase Induction Motor

    This Application Note explains an analysis that confirms the Speed-Torque curve and current density distribution of an induction motor.

  8. 80 – Cogging Torque Analysis of an SPM Motor with Skewed Magnetization

    This Application Note presents the use of a magnetic field analysis to obtain the flux density distribution, cogging torque, and induced voltage of an SPM motor that has skewed ma…

  9. 81 – AL-value Analysis of a Choke Coil

    This Application Note explains a case example that obtains the air gap versus AL characteristics of a choke coil.

  10. 82 – Analysis of a Synchronous Reluctance Motor

    This Application Note presents an evaluation of torque variations that occur when the phase of a sinusoidal wave current is changed.

  11. 43 – Torque Analysis of a Coreless Motor

    This Application Note presents an evaluation of the torque waveform of a coreless motor when current is running.

  12. 95 – 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…

  13. 71 – Basic Characteristic Analysis of a Motor with 2 Brushes, 6 Poles, and 19 Slots

    This Application Note presents an analysis to obtain the speed versus torque and torque versus current for a motor that has 2 brushes, 6 poles, and 19 slots.

  14. 74 – Speed Versus Torque Analysis of a Single-Phase Induction Motor

    This Application Note explains how to obtain the current density distribution and Speed-Torque curve created by auxiliary winding that uses a capacitor.

  15. 156 – Segregation Analysis of Torque Components for an IPM Motor

    In this Application Note, the torque components are separated and the magnetic flux density distributions created by each magnetomotive force are confirmed.

  16. 173 – Basic Characteristic Analysis of an IPM Motor

    This Application Note demonstrates an analysis in which an IPM motor's cogging torque, torque, magnetic flux density distribution, and iron loss in the stator core are obtained.

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