STM32G474xx hrtim1

[Kayhan]

Hi,

I have an inverter project designed with stm32g474xx and there is a "h-bridge" topology in the system.Can I create a uni-polar PWM to get three-level output while controlling this topology with hrtim1?

Can hrtim1 generate two complementary PWM outputs with 180 degree phase different ?

 

[ST_Sophia]

Hello, 

Each Time unit has two outputs that can be complimentary and then with 180deg phase, and you can insert dead time between them if required.

UniPolar output means the same duty cycle without dependency on polarity. This duty cycle is an input of the timer, and user should handle it by acquisition, comparators and computation, so not handled natively in the timer.

 

Best regards.