AMIS-30624 Datasheet, PDF (33/56 Pages) AMI SEMICONDUCTOR – I2C Microstepping Motordriver

AMIS-30624 I²C Microstepping Motordriver
15.3 Motordriver
15.3.1. Current Waveforms in the Coils
Figure 18 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 18: Current Waveforms in Motorcoils X and Y in Halfstep Mode
Whereas Figure 19 below shows the current fed to one coil in 1/16^th micro stepping (one electrical period).
Ix
Iy
Coil X
t
Coil Y
PC20051123.4
Figure 19: Current Waveforms in Motorcoils X and Y in 1/16^th Microstep mode
AMI Semiconductor – Apr. 2007, Rev 3.1, M-20664-003
33
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