I am using optimum PWM to control the transistors in my inverter circuit
. In optimum PWM, to eliminate harmonics, switching angles need to be calculated for turning transistors on and off. Does anyone know how to find out which pulses belong to certain switches being turned on or off.
e.g. 1 pulse might control transistors 1and 2 in my inverter or it might control 3 and 4. How do you know which is correct?
Shortly ,
you must use zero crossing detector.
I'm sory i'm weak on analogue design, but I know that to control like that you must use zero crossing detector. btw, what is your signal? sine or what?