驅動器的細分驅動

細(xi)(xi)(xi)分(fen)驅(qu)動(dong)(dong):細(xi)(xi)(xi)分(fen)驅(qu)動(dong)(dong)模式(shi)具有低(di)速振動(dong)(dong)很小(xiao)(xiao)和(he)定(ding)位(wei)精(jing)度(du)高兩大優點(dian)。對于有時需要低(di)速運(yun)行(即(ji)電(dian)機(ji)(ji)轉軸有時工作在60rpm以(yi)下)或定(ding)位(wei)精(jing)度(du)要求小(xiao)(xiao)于0.90度(du)的步(bu)進應用(yong)中，直流驅(qu)動(dong)(dong)器(qi)公司，細(xi)(xi)(xi)分(fen)型(xing)步(bu)進電(dian)機(ji)(ji)驅(qu)動(dong)(dong)器(qi)獲(huo)得廣泛應用(yong)。其基本原理是對電(dian)機(ji)(ji)的兩個線(xian)圈分(fen)別(bie)按正弦(xian)和(he)余(yu)弦(xian)形(xing)的臺階(jie)進行精(jing)密電(dian)流控(kong)制(zhi)，從而使(shi)得一(yi)個步(bu)距角的距離分(fen)成若干個細(xi)(xi)(xi)分(fen)步(bu)完成。例如十(shi)六(liu)細(xi)(xi)(xi)分(fen)的驅(qu)動(dong)(dong)方式(shi)可使(shi)每(mei)圈200標(biao)準步(bu)的步(bu)進電(dian)機(ji)(ji)達到每(mei)圈200*16=3200步(bu)的運(yun)行精(jing)度(du)(即(ji)0.1125°)。

為(wei)什么電機需要(yao)用驅動器(qi)

無論是(shi)直流無刷(shua)電機、步進電機，還(huan)是(shi)伺服電機，都會(hui)配對相應的驅動器。

1、直(zhi)(zhi)流(liu)無(wu)刷電機(ji)(ji)以電子換(huan)向(xiang)器取代(dai)了機(ji)(ji)械換(huan)向(xiang)器，直(zhi)(zhi)流(liu)無(wu)刷電機(ji)(ji)正因為電子換(huan)相，所(suo)以需要用(yong)到驅動器驅動電路。

2、步(bu)進電(dian)(dian)機(ji)要(yao)(yao)運轉那么必須要(yao)(yao)輸入脈(mo)(mo)沖，如果(guo)沒有脈(mo)(mo)沖，步(bu)進電(dian)(dian)機(ji)是不動的，所以我們(men)需(xu)要(yao)(yao)一個驅動器來給步(bu)進電(dian)(dian)機(ji)的各項繞組依次(ci)通電(dian)(dian)。

3、伺服電(dian)機是沒有(you)電(dian)刷和(he)換(huan)向器(qi)的，所以(yi)要保(bao)持旋(xuan)轉方向的話(hua)，就要有(you)電(dian)子換(huan)向器(qi)。電(dian)子換(huan)向器(qi)由驅動(dong)(dong)器(qi)控(kong)制，同時伺服控(kong)制器(qi)還可以(yi)控(kong)制電(dian)機的啟動(dong)(dong)與停(ting)止，正反(fan)轉，轉速的調節，過(guo)(guo)壓(ya)過(guo)(guo)流欠壓(ya)等保(bao)護(hu)。所以(yi)必須要有(you)伺服驅動(dong)(dong)器(qi)，即使把伺服電(dian)機直接通電(dian)也是不會(hui)工作的。

驅動器

要(yao)想了(le)解(jie)軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)和(he)光盤(pan)(pan)(pan)(pan)中(zhong)(zhong)的(de)(de)(de)(de)信息，就必須把(ba)他們分(fen)別(bie)插(cha)(cha)(cha)入到軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)光盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)中(zhong)(zhong)，供(gong)計(ji)算機(ji)(ji)(ji)對上(shang)(shang)面(mian)(mian)的(de)(de)(de)(de)數據信息進行識別(bie)和(he)處理。軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)光盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)都位于(yu)(yu)機(ji)(ji)(ji)箱(xiang)中(zhong)(zhong)，只把(ba)它們的(de)(de)(de)(de)'嘴(zui)巴'露在(zai)外面(mian)(mian)，隨時(shi)(shi)準備'吃進'軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)和(he)光盤(pan)(pan)(pan)(pan)。至于(yu)(yu)硬盤(pan)(pan)(pan)(pan)，由于(yu)(yu)它是(shi)不可移動(dong)(dong)(dong)(dong)的(de)(de)(de)(de)，直(zhi)流驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)公(gong)司，所以被固(gu)定于(yu)(yu)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)之中(zhong)(zhong)，也就是(shi)說，硬盤(pan)(pan)(pan)(pan)和(he)硬盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)是(shi)一(yi)體的(de)(de)(de)(de)。將(jiang)(jiang)軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)插(cha)(cha)(cha)入軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)時(shi)(shi)要(yao)注意(yi)方(fang)(fang)向，3.5英(ying)寸(cun)盤(pan)(pan)(pan)(pan)在(zai)插(cha)(cha)(cha)入時(shi)(shi)應該使(shi)轉軸面(mian)(mian)向下，金屬(shu)片朝前(qian)，聽(ting)到驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)口下方(fang)(fang)的(de)(de)(de)(de)彈出(chu)按鈕(niu)'喀噠(da)'一(yi)聲(sheng)彈出(chu)，說明軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)插(cha)(cha)(cha)好(hao)了(le)。取出(chu)時(shi)(shi)，應該先按一(yi)下彈出(chu)按鈕(niu)，軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)會(hui)自動(dong)(dong)(dong)(dong)彈出(chu)一(yi)部(bu)分(fen)，接著將(jiang)(jiang)軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)抽(chou)出(chu)。時(shi)(shi)下，使(shi)用5.2英(ying)寸(cun)盤(pan)(pan)(pan)(pan)的(de)(de)(de)(de)人越來越少(shao)，計(ji)算機(ji)(ji)(ji)上(shang)(shang)已很少(shao)安裝5.2英(ying)寸(cun)軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)。 值得注意(yi)的(de)(de)(de)(de)是(shi)，直(zhi)流驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)公(gong)司，軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)上(shang)(shang)方(fang)(fang)或下方(fang)(fang)有一(yi)個小小的(de)(de)(de)(de)指(zhi)示(shi)(shi)燈(deng)，當指(zhi)示(shi)(shi)燈(deng)亮(liang)時(shi)(shi)，吉林(lin)直(zhi)流驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)，說明計(ji)算機(ji)(ji)(ji)正在(zai)讀或寫(xie)這(zhe)個驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)內的(de)(de)(de)(de)軟(ruan)(ruan)(ruan)盤(pan)(pan)(pan)(pan)，硬盤(pan)(pan)(pan)(pan)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)指(zhi)示(shi)(shi)燈(deng)也位于(yu)(yu)主機(ji)(ji)(ji)箱(xiang)前(qian)面(mian)(mian)板上(shang)(shang)，指(zhi)示(shi)(shi)燈(deng)亮(liang)時(shi)(shi)，表明計(ji)算機(ji)(ji)(ji)正在(zai)讀或寫(xie)硬盤(pan)(pan)(pan)(pan)。