as i said that the ac to dc converter is taking power from a ac mains (three phase) and giving a dc power output to drive a dc motor.my converter is having bridge configuration of three arms and having six IGBTs and i need to issue PWM so that they will be conducting on a particular instants.I mean these PWM pulses will go to driver circuit of IGBT which i have fabricated already.
As far as comparison of triangular wave and sine wave is compared it is for PWM generation through hardware.
i have a paper on this if you want to read that paper of IEEE i can send it to you.
so can you please give me your id on different site so i can send it to you if you have time to read .
seeking help


This makes no sense, why would you need 6 IGBTs for a DC motor? describe better.

what is the triangular wave and what is the sine wave? we are talking DC motor with a sine wave????????

post a schematic, that may make us understand.

Erik