Z32F0641MCU Datasheet, PDF (174/205 Pages) Zilog, Inc. – High Performance low-power Cortex-M3 core

Z32F0641 Product Specification
Motor Pulse Width Modulator
Figure 15.9 is an example of dead-time operation in 1 channel symmetric mode.
MP.CNT
MP.DUH/V/W
MP0UH
MP0VH
MP0WH
MP0UH
MP0VH
MP0WH
MP.DTR
MP.DTR
Figure 15.9. PWM Dead-time Operation Timing Diagram (Symmetric Mode)
Figure 15.10 displays an example of dead-time operation in 1-channel asymmetric mode.
MP.CNT
MP.DUL/V/W
MP.DUH/V/W
MP0UH
MP0VH
MP0WH
MP0UH
MP0VH
MP0WH
MP.DTR
MP.DTR
Figure 15.10. PWM Dead-Time Operation Timing Diagram (Asymmetric Mode)
The dead-time function is not available for 2-channel symmetric mode. Therefore, the dead condition is
generated by each channel’s duty control.
MPWM Dead-time Timing Examples for Special Conditions
Figure 15.11 shows the operation of dead-time.
In normal dead-time, dead-time masking is activated at duty match time and the dead-time counter runs.
When the dead-time counter reaches the dead time value, the mask is disabled.
PS034404-0417
PRELIMINARY
171