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AN4158 датащи(PDF) 10 Page - STMicroelectronics

номер детали AN4158
подробное описание детали  Peak current control with automatic decay adjustment
PDF  34 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4158 датащи(HTML) 10 Page - STMicroelectronics

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Stepper motor basics
AN4158
10/34
DocID023635 Rev 2
Equation 2
Table 4. Microstepping current level examples
1/2 step(1)
1/4 step
1/8 step
Phase A current
Phase B current
00
00
+100% IPeak
1+20% IPeak
+98% IPeak
12
+38% IPeak
+92% IPeak
3+56% IPeak
+83% IPeak
12
4
+71% IPeak
+71% IPeak
5+83% IPeak
+56% IPeak
36
+92% IPeak
+38% IPeak
7+98% IPeak
+20% IPeak
2
4
8
+100% IPeak
0
9+98% IPeak
-20% IPeak
510
+92% IPeak
-38% IPeak
11
+83% IPeak
-56% IPeak
3
6
12
+71% IPeak
-71% IPeak
13
+56% IPeak
-83% IPeak
714
+38% IPeak
-92% IPeak
15
+20% IPeak
-98% IPeak
4
8
16
0
-100% IPeak
17
-20% IPeak
-98% IPeak
918
-38% IPeak
-92% IPeak
19
-56% IPeak
-83% IPeak
510
20
-71% IPeak
-71% IPeak
21
-83% IPeak
-56% IPeak
11
22
-92% IPeak
-38% IPeak
23
-98% IPeak
-20% IPeak
6
12
24
-100% IPeak
0
25
-98% IPeak
+20% IPeak
13
26
-92% IPeak
+38% IPeak
27
-83% IPeak
+56% IPeak
714
28
-71% IPeak
+71% IPeak
IPhA IPeak
2Nmicrostep
----------------------------------- n


sin
=
IPhB IPeak
2Nmicrostep
----------------------------------- n


cos
=



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