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BLDC Control eTPU set3  question

Question asked by olivier kieffer on Apr 18, 2013
Latest reply on Apr 25, 2013 by Walter Banks

Hello,

 

Maybe someone can explain me the following about the HD/PWM functions :

 

In the MCU, I want to use the complementary pair phase type, so where 2 eTPU channels drive 1 Base Channel and 1 Complementary Channel, (lets assume eTPU(8) and eTPU(9) for PhaseA.

 

Then I need to connect a power-stage module where the pins are refered as:

PA_HS, PA_LS

PB_HS, PB_LS

PC_HS, PB_LS

and correspond to the gate drives of the 6 half-bridges.

 

The question is, how do the signals from the MCU connect to the power module?

 

BaseChannelA to PA_HS, is it correct? Then where do I connect the complementary channel? It must be PB_LS or PC_LS, correct? Which one?

 

Can someone help me please?

 

Thanks you

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