如何控制步進電機？

在控(kong)制(zhi)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)時(shi)如(ru)(ru)果需要對電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)轉(zhuan)動(dong)(dong)角度進行定(ding)位(wei)，步(bu)(bu)進電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)是(shi)非常合適(shi)的(de)選(xuan)擇(ze)。下面是(shi)對單極(ji)和雙極(ji)步(bu)(bu)進電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)以及如(ru)(ru)何(he)從微控(kong)制(zhi)器控(kong)制(zhi)它們做詳(xiang)細的(de)介紹。閱讀下面的(de)這些(xie)內容，絲桿電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)公司(si)(si)，可以先了解(jie)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)是(shi)如(ru)(ru)何(he)工(gong)作的(de)、微控(kong)制(zhi)器是(shi)如(ru)(ru)何(he)工(gong)作的(de)、如(ru)(ru)何(he)使用晶體管來控(kong)制(zhi)大電(dian)(dian)(dian)(dian)流負載以及直流電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)是(shi)如(ru)(ru)何(he)工(gong)作的(de)。正如(ru)(ru)您在電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)簡介中所了解(jie)到的(de)，步(bu)(bu)進電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)是(shi)由一系(xi)(xi)列電(dian)(dian)(dian)(dian)磁(ci)線圈控(kong)制(zhi)的(de)電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)。中間軸(zhou)上安裝有(you)一系(xi)(xi)列磁(ci)鐵(tie)，軸(zhou)周圍的(de)線圈交替地(di)被電(dian)(dian)(dian)(dian)流給定(ding)與否，產生磁(ci)場，排斥或吸引軸(zhou)上的(de)磁(ci)鐵(tie)，絲桿電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)公司(si)(si)，導致電(dian)(dian)(dian)(dian)機(ji)(ji)(ji)旋轉(zhuan)。

步進電機細分驅(qu)動器的細分數是否(fou)能(neng)代表精度介紹

步(bu)(bu)進電(dian)機(ji)的細(xi)(xi)分(fen)技術(shu)實質(zhi)上是一(yi)種電(dian)子阻尼技術(shu)（請(qing)參考有關文獻），其(qi)主(zhu)要(yao)目(mu)的是減弱(ruo)或(huo)消除(chu)步(bu)(bu)進電(dian)機(ji)的低(di)頻振動(dong)(dong)，提高電(dian)機(ji)的運(yun)轉精(jing)度只是細(xi)(xi)分(fen)技術(shu)的一(yi)個(ge)附帶功能。比(bi)如對于步(bu)(bu)進角為1.8° 的兩相(xiang)混合式步(bu)(bu)進電(dian)機(ji)，如果(guo)細(xi)(xi)分(fen)驅動(dong)(dong)器(qi)的細(xi)(xi)分(fen)數(shu)(shu)設置(zhi)為4，那么電(dian)機(ji)的運(yun)轉分(fen)辨率為每個(ge)脈沖(chong)0.45°，電(dian)機(ji)的精(jing)度能否達(da)到或(huo)接近0.45°，還取決(jue)于細(xi)(xi)分(fen)驅動(dong)(dong)器(qi)的細(xi)(xi)分(fen)電(dian)流(liu)控制精(jing)度等(deng)其(qi)它因(yin)素。不(bu)同(tong)廠(chang)家的細(xi)(xi)分(fen)驅動(dong)(dong)器(qi)精(jing)度可能差別很大；細(xi)(xi)分(fen)數(shu)(shu)越(yue)大精(jing)度越(yue)難控制。

步進電機分類

步(bu)進(jin)電(dian)機(ji)分三種(zhong)：永磁(ci)式(shi)(shi)(shi)（PM）、反(fan)應(ying)式(shi)(shi)(shi)（VR）和(he)(he)混(hun)合(he)式(shi)(shi)(shi)（HB）。永磁(ci)式(shi)(shi)(shi)步(bu)進(jin)一般為(wei)(wei)(wei)兩相(xiang)，轉矩(ju)和(he)(he)體(ti)積較小，絲桿電(dian)機(ji)，步(bu)進(jin)角(jiao)一般為(wei)(wei)(wei)7.5度(du)或15度(du)；反(fan)應(ying)式(shi)(shi)(shi)步(bu)進(jin)一般為(wei)(wei)(wei)三相(xiang)，可實(shi)現(xian)大(da)轉矩(ju)輸(shu)出，步(bu)進(jin)角(jiao)一般為(wei)(wei)(wei)1.5度(du)，但(dan)噪聲和(he)(he)振動都(dou)很大(da)，在歐美等發(fa)達國(guo)家(jia)80年代已(yi)被淘(tao)汰；混(hun)合(he)式(shi)(shi)(shi)步(bu)進(jin)是指混(hun)合(he)了永磁(ci)式(shi)(shi)(shi)和(he)(he)反(fan)應(ying)式(shi)(shi)(shi)的優點，它(ta)又分為(wei)(wei)(wei)兩相(xiang)和(he)(he)五相(xiang)：兩相(xiang)步(bu)進(jin)角(jiao)一般為(wei)(wei)(wei)1.8度(du)而五相(xiang)步(bu)進(jin)角(jiao)一般為(wei)(wei)(wei)0.72度(du)。