Control of PWM outputs during 6-step commutation

Power Solutions Intelligent Motor Controllers
1

I have been working with the PAC55713 for a couple of months now, and have finally climbed the learning curve on the peripherals to the point where I feel somewhat capable of working with them. I am finally ready to start running a motor with the chip and am starting with 6-step commutation. What is the best way to turn off the upper and lower gates of a phase completely when commutating? Thanks, Keith

2

Hello,
You can configure the GPIOs that are connected to the pre-driver and set the PIN level to 0 to turn off the gate. On the PAC55713 board, it is PB0/1/2 for DRL0/1/2 and PB4/5/6 for DRH0/1/2. To do so, you should:

  1. Set the output of the PIN to 0.
  2. Set the PIN from PWM mode to GPIO mode.

Heng