The principle of PWM, calculating AC current from DC

[FERMED]

power electronics books

hi friends,

I need a detailled explanations for the principe of PWM and how to generate sinwav signal from a DC one.
my secon question concerne the current, how can i calculate AC current from DC one in DC-AC converter?

many thanks

 

[ark5230]

Re: pwm

First part of the question needs volumes of stuff. Regarding the second part you can estimate using the concept of power or VI on the two sides. The efficiency could also be kept in mind for better estimates.
Regards
Raoof

 

[Tahmid]

pwm

Hi Fermed,
2nd part answer.
If you want to convert sq wave AC from DC, then you can convert the DC to AC almost equal less the conversion loss. If you convert the Sinusoidal AC from DC, then you have to have the input DC value= 1.41xrequired AC value+conversion loss. Thanks.