Datasheet

PWM_A
PWM_B
PWM_C
Phase A
CurrentandVoltage
PhaseB
CurrentandVoltage
PhaseC
CurrentandVoltage
BackEMF(Vab)
Ia
Ib
Ic
Va
Vb
Vc
PWM=100% PWM=75%
S1 S6S5S4S3S2 S1 S6S5S4S3S2
BackEMF(Vbc)
BackEMF(Vca)
360
o
360
o
0V
0V
0V
0A
0A
0A
0V
0V
0V
RESET_A
RESET_B
RESET_C
DRV8312
DRV8332
www.ti.com SLES256C –MAY 2010–REVISED OCTOBER 2013
Figure 12. Sensorless Control with 6 Steps Trapezoidal Scheme
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