6AV2123-2DB03-0AX0

接通電源后，工作波形圖的輸出電壓波形A1～A3中立即顯示短脈沖。這表示位置檢測(cè)用的6種模式已通電。如上所述，由于是短時(shí)間通電，因此與其他波形相比，成了這樣的時(shí)間示意圖。

由于永磁體的位置是在接通電源后立即被檢測(cè)到的，并且是通過基于永磁體位置的初始驅(qū)動(dòng)模式進(jìn)行驅(qū)動(dòng)的，因此可以避免反轉(zhuǎn)和低轉(zhuǎn)矩啟動(dòng)（這些正是通過檢測(cè)感應(yīng)電壓進(jìn)行啟動(dòng)的方法所存在的問題），一開始電機(jī)就可以用大轉(zhuǎn)矩開始旋轉(zhuǎn)。

啟動(dòng)后的工作過程與通過檢測(cè)感應(yīng)電壓進(jìn)行啟動(dòng)的方法基本相同。初始驅(qū)動(dòng)中切換驅(qū)動(dòng)模式的時(shí)序與通過檢測(cè)感應(yīng)電壓進(jìn)行啟動(dòng)的方法相同，都是取決于ST_CLK。

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