Characteristics of Small DC Brushless Motors.

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  • 小形ＤＣブラシレスモータの特性計算
  • コガタ DC ブラシレス モータ ノ トクセイ ケイサン

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Analysis of DC brushless motors has been done without considering the inductance of the stator windings. Therefore, characteristics of velocity (N) -torque(T) -current(I) have been straight lines. The effects of the inductance are not negligible and the actual N-I-T characteristics are quite different from calculated ones.<br>We set up circuit equations taking into account the drive circuit, resistance and inductance of the stator windings and waveform of back e. m. f., to analyze small DC brushless motors. Obtained characteristics showing curved lines agree well with actual ones. With the results, trial-and-error design process became possible to be removed and efficiency of the motor design was improved.

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