AN2367 Freescale Semiconductor / Motorola, AN2367 Datasheet - Page 4

• Manufacturer Part Number: AN2367
• Description: Using the Multiphase Motor Commutation TPU Function (COMM)with the MPC500 Family
• Manufacturer: Freescale Semiconductor / Motorola

Freescale Semiconductor, Inc.
Sensorless Mode
implemented as a programmable state machine. The basis for the production of the commutation signals is
a counter representing the angular position of the motor. This counter is the position count output of a TPU
input function such as Quadrature Decode (QDEC) or Fast Quadrature Decode (FQD), which is derives
angular position from the shaft encoder. Figure 2 shows typical shaft encoder set-up and control waveforms.
Figure 2. Typical Sensorless Set-up and Waveforms
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Using the Multiphase Motor Commutation TPU Function
MOTOROLA
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