I have a clarification, an inverter converts DC to AC using for example SPWM, but can the DC input be as below
or it should only be a straight line?

 

Cycloconverters do take the rectified waveform that you show, but the resultant output can only be a integer sub harmonic of the input frequency.
Otherwise, it has to be straight line DC, or with a low ripple.

 

I have a clarification, an inverter converts DC to AC using for example SPWM, but can the DC input be as below
View attachment 367954or it should only be a straight line?

Just add suitably sized capacitor and it will, presuming that it was created by rectifying AC. If not, you would need a diode as well.

 

Thank you for the clarifications, regarding the SPWM implementation

i made the LTspice model not ready for simulation yet, I am trying to implement in a controller, i have few questions, there is a sine reference inputs V2 and V4 and carrier signals are V1 and V3.

The carrier is super imposed on the reference as above, is my point of adc reading correct? The PWM counter is for example from 0 to 8500 for 20KHz signal(170MHz). How do i compare the adc sensing values to pwm counter values? Do i need to convert them with a factor? Are there any mistakes in my understanding?

 

Yes i understand it partially now, the ADC value of the sine wave will give me the CCR value which determines the duty cycle given to the H bridges.