How do I generate complementary signals on ePWMA and ePWMB with F28335 using Simulink ePWM block?

Hello,

I'm using an eZdsp F28335 + Simulink to generate PWM signals.

Whatever the settings of the c2000 ePWM-block in Simulink are, I constantly get the same signal on ePWM1A and ePWM1B. How can I generate a signal on ePWM1B that is complementary with ePWM1A?

Thanks in advance,

Pieter Gervoyse

[Kamal Joshi]

Any Luck with this issue ?

[Karl-Heinz Mühlberg]

hi, no answer?

[Frank Pang]

can't believe that I'am still facing this issue in 2021, some DSP support this feature in just one click, but 28335 doesn't. btw, document of ePWM block looks unhelpful.

Answer 1

[Venkatesh Chilapur]

Please mention the version of the MATLAB and version of the C2000 hardware support package that you are working with.

Answer 2

[Michael Ajazi]

Set "Synchronization output (SYNCO):" in General to "Counter equals to compare B(CTR=CMPB") and that should give you complimentary PWM signals.