User Manual

AND8399/D
http://onsemi.com
5
Figure 8. Oscilloscope Plot of 1/8 Microstepping with No
Microstep Position Located at the Zero Current Crossing
V
SLA
X−coil
Y−coil
“Coil current
zero crossing”
Because there is an offset cre-
ated, no microstep position is
located at the zero current
crossing (= full step position).
The measured SLA voltage
(V
SLA
) will not represent the real
Bemf voltage.
X−coil
V
SLA