Complementary PWM at active low.

Shreekant Tembhekar · ‎2019-01-23

I have generated complementary PWM signal on STM32L496ZGtx. I used TIM1CH1 and TIM1CH1N. I am using one pulse mode so that every 1 second, I generate complementary signal. However one channel starts at active HIGH and another starts at active LOW. How should I start and end both the channels at active low? See attached image.

waclawek.jan · ‎2019-01-23

After end of the burst, set TIM1_CCER.CC1NP, and before beginning clear it again.

JW

S.Ma · ‎2019-01-23

1N means negated signal with possible slight time skew for driving power mos in 3 phase motot control.

Instead, if you need more control and flexibility, why not use 2 non inverted timer channels?

Shreekant Tembhekar · ‎2019-01-27

what is CC1NP?

waclawek.jan · ‎2019-01-27

JW