通(tong)常(chang)我們把(ba)直流電(dian)(dian)(dian)(dian)機(ji)分(fen)為(wei)有(you)刷(shua)(shua)電(dian)(dian)(dian)(dian)機(ji)和無(wu)刷(shua)(shua)電(dian)(dian)(dian)(dian)機(ji)兩種。直流無(wu)刷(shua)(shua)減(jian)速電(dian)(dian)(dian)(dian)機(ji)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)是(shi)通(tong)常(chang)利(li)用(yong)電(dian)(dian)(dian)(dian)機(ji)自(zi)身進行快速制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)有(you)兩種簡單(dan)(dan)的(de)(de)辦法，一種是(shi)能耗(hao)(hao)(hao)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)，一種是(shi)短(duan)(duan)接(jie)(jie)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)，能耗(hao)(hao)(hao)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)是(shi)把(ba)電(dian)(dian)(dian)(dian)機(ji)的(de)(de)動(dong)(dong)(dong)能消(xiao)耗(hao)(hao)(hao)在外部制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)電(dian)(dian)(dian)(dian)阻上(shang)，短(duan)(duan)接(jie)(jie)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)是(shi)把(ba)電(dian)(dian)(dian)(dian)機(ji)的(de)(de)動(dong)(dong)(dong)能消(xiao)耗(hao)(hao)(hao)在電(dian)(dian)(dian)(dian)機(ji)的(de)(de)定子繞(rao)組上(shang)。顯然能耗(hao)(hao)(hao)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)對于減(jian)少電(dian)(dian)(dian)(dian)機(ji)發熱更加有(you)利(li)。但(dan)是(shi)短(duan)(duan)接(jie)(jie)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)不需要對于硬件進行改動(dong)(dong)(dong)，簡單(dan)(dan)方便(bian)是(shi)其突出的(de)(de)特點，所以(yi)重點研究短(duan)(duan)接(jie)(jie)制(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)。

所謂短接制(zhi)動是(shi)指在剎(cha)車時能(neng)做到(dao)讓電(dian)(dian)(dian)(dian)(dian)機(ji)的(de)驅動MOS管(guan)上橋(qiao)臂(bei)(bei)（或者下(xia)橋(qiao)臂(bei)(bei)）全部導(dao)通而(er)(er)下(xia)橋(qiao)臂(bei)(bei)（或者上橋(qiao)臂(bei)(bei)）截止狀態(tai)，電(dian)(dian)(dian)(dian)(dian)機(ji)的(de)三相定(ding)子繞組(zu)(zu)全部被短接。處(chu)于發電(dian)(dian)(dian)(dian)(dian)狀態(tai)的(de)電(dian)(dian)(dian)(dian)(dian)機(ji)，相當(dang)于電(dian)(dian)(dian)(dian)(dian)源被短路(lu)。因為(wei)繞組(zu)(zu)的(de)電(dian)(dian)(dian)(dian)(dian)阻比較小，所以能(neng)產(chan)生(sheng)很(hen)大(da)的(de)短路(lu)電(dian)(dian)(dian)(dian)(dian)流，電(dian)(dian)(dian)(dian)(dian)機(ji)的(de)動能(neng)被快(kuai)速釋放(fang)，從而(er)(er)使電(dian)(dian)(dian)(dian)(dian)機(ji)瞬時產(chan)生(sheng)大(da)的(de)制(zhi)動力(li)(li)矩，能(neng)夠達(da)到(dao)快(kuai)速剎(cha)車的(de)效(xiao)果(guo)。電(dian)(dian)(dian)(dian)(dian)機(ji)速度越(yue)，短路(lu)電(dian)(dian)(dian)(dian)(dian)流越(yue)大(da)，制(zhi)動力(li)(li)也越(yue)大(da)。但是(shi)必(bi)須(xu)考慮不能(neng)夠超(chao)過超(chao)過MOS管(guan)的(de)承受能(neng)力(li)(li)，因此一般等待電(dian)(dian)(dian)(dian)(dian)機(ji)速度降(jiang)低(di)到(dao)一定(ding)程度再使用短接制(zhi)動。

兆威生產的減速電機均(jun)可以(yi)(yi)配無刷(shua)(shua)馬(ma)達，有刷(shua)(shua)馬(ma)達，步進(jin)電機，空心杯電機等。公司產(chan)品主要(yao)以(yi)(yi)行星精密(mi)齒輪箱，驅(qu)動(dong)智能的微型減速電機為主。

直流無(wu)刷減速電(dian)機(ji)應用智能汽車驅(qu)動、5G通訊設備、智能機(ji)器人、智能家居、電(dian)子產(chan)品等領域(yu)。