LMD18245_06 Datasheet, PDF (18/21 Pages) National Semiconductor (TI) – 3A, 55V DMOS Full-Bridge Motor Driver

The Typical Application (Continued)
|
FORWARD
↓
↑
REVERSE
|
α
|cos(α)|
DA
DIRECTION A
|sin(α)|
DB
0˚
1
15
1
0
0
45˚
0.707
11
1
0.707
11
90˚
0
0
0
1
15
135˚
0.707
11
0
0.707
11
180˚
1
15
0
0
0
225˚
0.707
11
0
0.707
11
270˚
0
0
1
1
15
315˚
0.707
11
1
0.707
11
REPEAT
FIGURE 13. Lookup Table for Half Step Drive with Torque Compensation
DIRECTlON B
1
1
1
1
0
0
0
0
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18