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zhaosheng998
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樓主  發(fā)表于: 2018-08-30 16:56
在直流24V電路中串入一個(gè)可調電阻，用來(lái)調節一個(gè)直流電機的轉速，直流電機24V全壓控制時(shí)的電流是0.072A,不知如何計算電阻選用多大的阻值？
1992sd
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1樓  發(fā)表于: 2018-08-31 10:58
先要確定好調速范圍，再來(lái)確定電阻值。

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