如何(he)控(kong)制步進電(dian)機加(jia)減速(su)速(su)度?
步(bu)進(jin)電(dian)機(ji)是(shi)(shi)一種(zhong)應用(yong)非常(chang)廣泛的(de)(de)驅動電(dian)機(ji),步(bu)進(jin)電(dian)機(ji)是(shi)(shi)將(jiang)電(dian)脈沖(chong)(chong)(chong)信(xin)(xin)號轉變為角位(wei)移(yi)或線位(wei)移(yi)的(de)(de)開環控制(zhi)(zhi)(zhi)元步(bu)進(jin)電(dian)機(ji)件。步(bu)進(jin)電(dian)機(ji)是(shi)(shi)將(jiang)脈沖(chong)(chong)(chong)信(xin)(xin)號轉化成為角位(wei)移(yi)或者線位(wei)移(yi)的(de)(de),所(suo)以步(bu)進(jin)電(dian)機(ji)只能夠由數字信(xin)(xin)號控制(zhi)(zhi)(zhi)運行的(de)(de),當脈沖(chong)(chong)(chong)提供給驅動器(qi)時(shi),步(bu)進(jin)電(dian)機(ji)根據脈沖(chong)(chong)(chong)的(de)(de)信(xin)(xin)號轉動。步(bu)進(jin)電(dian)機(ji)加(jia)減速(su)控制(zhi)(zhi)(zhi)方法有如下幾種(zhong):1.采用(yong)定時(shi)器(qi)中(zhong)斷(duan)方式控制(zhi)(zhi)(zhi)電(dian)機(ji)變速(su)時(shi),實際上是(shi)(shi)不斷(duan)改變定時(shi)器(qi)裝載值的(de)(de)大小。2.采用(yong)微機(ji)對(dui)步(bu)進(jin)電(dian)機(ji)進(jin)行加(jia)減速(su)控制(zhi)(zhi)(zhi),實際上就(jiu)是(shi)(shi)改變輸出脈沖(chong)(chong)(chong)的(de)(de)時(shi)間間隔,升速(su)時(shi)使(shi)脈沖(chong)(chong)(chong)串(chuan)逐(zhu)漸加(jia)密(mi),減速(su)時(shi)使(shi)脈沖(chong)(chong)(chong)串(chuan)逐(zhu)漸稀疏。3.單片機(ji)在控制(zhi)(zhi)(zhi)電(dian)機(ji)加(jia)減速(su)的(de)(de)過程中(zhong),一般用(yong)離散方法......
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02-19 13:41
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