單片機(jī)控制步進(jìn)電機(jī)驅(qū)動(dòng)器工作原理
| 0H,#40H AJMP QUIT LOOQ1: MOV P1,#0E0H MOV 21H,#04H MOV 20H,#20H AJMP QUIT LOOQ2: MOV P1,#0C0H MOV 21H,#08H MOV 20H,#10H AJMP QUIT LOOQ3: MOV P1,#0D0H MOV 21H,#10H MOV 20H,#08H AJMP QUIT LOOQ4: MOV P1,#050H MOV 21H,#20H MOV 20H,#04H AJMP QUIT LOOQ5: MOV P1,#070H MOV 21H,#40H MOV 20H,#02H AJMP QUIT LOOQ6: MOV P1,#030H MOV 21H,#80H MOV 20H,#01H AJMP QUIT LOOQ7: MOV P1,#0B0H MOV 21H,#01H MOV 20H,#80H QUIT: RETI END 4.結(jié)論 該驅(qū)動(dòng)器經(jīng)實(shí)驗(yàn)驗(yàn)證能驅(qū)動(dòng)0.5N.m的步進(jìn)電機(jī)。將驅(qū)動(dòng)部分的電阻、電容及續(xù)流二極管的有關(guān)參數(shù)加以調(diào)整，可驅(qū)動(dòng)1.2N.m的步進(jìn)電機(jī)。該驅(qū)動(dòng)器電路簡(jiǎn)單可靠，結(jié)構(gòu)緊湊，對(duì)于I/O口線與單片機(jī)資源緊張的系統(tǒng)來(lái)說(shuō)特別適用。 |
