AMIS-30623 Datasheet, PDF (35/67 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS-30623 LIN Microstepping Motordriver
15.3 Motordriver
15.3.1. Current Waveforms in the Coils
The figure below illustrates the current fed to the motor coils by the motordriver in half-step mode.
Ix
Iy
Coil X
Data Sheet
t
Coil Y
PC20051205.1
Figure 20: Current Waveforms in Motorcoils X and Y in Halfstep Mode
Whereas the figure below shows the current fed to one coil in 1/16^th micro stepping (1 electrical period).
Ix
Iy
Coil X
t
Coil Y
PC20051123.4
Figure 21: Current Waveforms in Motorcoils X and Y in 1/16^th Microstep Mode
AMI Semiconductor – June 2006, Rev 3.0
35
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