JMAG-Designer

[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.

• Applications: Bus Bar
• Physical Phenomena: Magnetic Field and Thermal
• Technical Themes: Multiphysics

[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…

• Applications: IPM Motor and Motor
• Physical Phenomena: Magnetic Field and Structural
• Technical Themes: Multiphysics

[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.

• Applications: Motor and SPM Motor
• Physical Phenomena: Magnetic Field

[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…

• Applications: Induction Heating
• Physical Phenomena: Magnetic Field and Thermal
• Technical Themes: Multiphysics

[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.

• Applications: Transformer / Reactor
• Physical Phenomena: Magnetic Field

[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 …

• Applications: IPM Motor and Motor
• Physical Phenomena: Circuit / Control and Magnetic Field
• Technical Themes: MBD

[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…

• Applications: Brush Motor / Universal Motor and Motor
• Physical Phenomena: Magnetic Field

[JAC094] Analysis of Detent Torque of a PM Stepper Motor

This Application Note describes how the detent torque can be calculated for a PM stepper motor.

• Applications: Motor and Stepper Motor
• Physical Phenomena: Magnetic Field

[JAC043] Torque Analysis of a Coreless Motor

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

• Applications: Coreless Motor and Motor
• Physical Phenomena: Magnetic Field

Comparison between IPM and SPM based on Experiment and Analysis Result(Report of Harumi Project1)

Kan Akatsu,Katsuyuki Narita,Yoshuki Sakashita,Takashi Yamada, Tokyo University of Agriculture and Technology/JRI Solutions, Ltd.

• Applications: IPM Motor, Motor, and SPM Motor
• Physical Phenomena: Magnetic Field

Practice of JMAG by e-learning

Edmund Soji Otabe, Kyushu Institute of Technology

Using JMAG in a Laboratory

Kenji Nakamura, Tohoku University

Efficiency improvement of non-contact power supply systems

Hiroyasu Tomita, MURATA MACHINERY,LTD.

• Applications: Wireless Power Transfer
• Physical Phenomena: Magnetic Field

Analysis of Switching Transformers Using Common and Specialized JMAG Features

Hideo Matsumoto, Tabuchi Electric Co.,Ltd.

• Applications: Transformer / Reactor
• Physical Phenomena: Magnetic Field and Structural

Estimation of Inductance Variation in Small, Low Profile Transformers

Masahiro Shima,Shinji Ikeda, COSEL CO., LTD./Toyama National College of Technology

• Applications: Transformer / Reactor
• Physical Phenomena: Magnetic Field

Evaluation of eddy current characteristic for applied high frequency voltage to the giant magnetrostrictive material

Masayuki Sugasawa, Sony EMCS Corporation

• Physical Phenomena: Magnetic Field
• Technical Themes: Material Modeling / Loss Analysis