
ST7MC1xx/ST7MC2xx
MOTOR CONTROLLER (Cont’d)
Figure 109. PWM application in Voltage or Current sensorless mode (see Table 61)
OS2
0
1
PWM behaviour after C
and before D
High Channels
Low Channels
OS1
0
1
PWM behaviour after D
and before Z
High Channels
Low Channels
OS2
Demagnetization
1
0
Step
OS1
DeWmaaitgZneetvizeantiton
000 0 High
1 Low
001 0 High
1 Low
0 High
010 1 Low
011 0 High
1 Low
100 0
1
High
Low
101 0 High
1 Low
110 0 High
1 Low
0 High
111 1 Low
OS0
0
1
PWM behaviour after Z
and before next C
High Channels
Low Channels
OS0
Delay
192/309
1