How to create a three phase sine waveform for an inverter with Orcad pspice?

[yla123]

I have tried the way shown in the link below:

https://www.edaboard.com/threads/three-phase-inverter-simulation.288530/

But it does not work at all. I don't think his PWM generators are correct (they are virtually the same), how did the author get the three phase waveform with 120 degree shift??

 

[BradtheRad]

To obtain 3-phase timing signals, a chaser, or sequencer, or ring oscillator with 3 stages. The third schematic at the link below produces quasi-sine waveforms. Filtering might make them acceptable.

https://www.4qdtec.com/wfg.html

 

[FvM]

The

But it does not work at all. I don't think his PWM generators are correct (they are virtually the same), how did the author get the three phase waveform with 120 degree shift??

You get the phase shift by setting appropriate phase parameters for the sine sources. Unfortunately the phase parameter display is disabled in the posted schematic.