微型直流無刷電機控(kong)制(zhi)(zhi)設備是(shi)用來控(kong)制(zhi)(zhi)電(dian)機(ji)(ji)(ji)(ji)的運(yun)轉，有各種(zhong)控(kong)制(zhi)(zhi)電(dian)動(dong)機(ji)(ji)(ji)(ji)，電(dian)器，自動(dong)化元件及(ji)工業控(kong)制(zhi)(zhi)計(ji)算(suan)機(ji)(ji)(ji)(ji)組成。電(dian)動(dong)機(ji)(ji)(ji)(ji)是(shi)生產機(ji)(ji)(ji)(ji)械的原動(dong)機(ji)(ji)(ji)(ji)，將電(dian)能(neng)轉化成機(ji)(ji)(ji)(ji)械能(neng)。

微型(xing)直(zhi)(zhi)流(liu)(liu)無刷電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)斬波(bo)(bo)調(diao)速(su)原理是利(li)用可控(kong)硅整流(liu)(liu)調(diao)壓來達(da)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)調(diao)速(su)的(de)目(mu)的(de)，利(li)用交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)相(xiang)位延(yan)遲一(yi)定時(shi)間發(fa)出(chu)觸發(fa)信(xin)號使(shi)可控(kong)硅導通即為(wei)斬波(bo)(bo)，斬波(bo)(bo)后的(de)交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)經電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)濾波(bo)(bo)后其平均電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓隨(sui)斬波(bo)(bo)相(xiang)位變化(hua)而變化(hua)。為(wei)了(le)達(da)到控(kong)制(zhi)直(zhi)(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)目(mu)的(de)，在控(kong)制(zhi)回路加入了(le)速(su)度(du)(du)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)反饋環(huan)路和(he)(he)PID調(diao)節器來防止電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)由于負載變化(hua)而引起的(de)波(bo)(bo)動和(he)(he)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)速(su)度(du)(du)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)超常保護。

微(wei)(wei)型(xing)(xing)直(zhi)流(liu)無刷(shua)電(dian)機具有(you)呼應(ying)疾速、較大的起動轉矩(ju)、從(cong)零轉速至額(e)外轉速具有(you)可(ke)提供(gong)額(e)外轉矩(ju)的功能，但微(wei)(wei)型(xing)(xing)直(zhi)流(liu)電(dian)機的特點(dian)也正是它的缺(que)陷(xian)，因(yin)此(ci)，微(wei)(wei)型(xing)(xing)直(zhi)流(liu)電(dian)機要發生額(e)外負載下恒(heng)定(ding)轉矩(ju)的功能，進行斬波調速。