直流电动机的高性能范围。
试验结果表明这种直流电动机的换向性能是较好的。
The test results show that commutation performance of the D. C. motor is better.
介绍了凸极无刷直流电动机转子位置检测的电流注入法。
This paper proposes an injection current based three phase power flow method.
对于它励直流电动机，励磁线圈由一个单独的电源来励磁。
In the separately excited dc machine, the field winding is excited from a separate source.
该方法已应用到直流电动机的调速上，并取得了满意的效果。
It was applied to speed control ind-c motor and obvious effect has been found.
该方法已应用到直流电动机的调速上，并取得了满意的效果。
It was applied to speed control ind-c motor and obvious effect has been found.
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