AC to AC converter circuit

Hello
please any one guide me how to make AC to AC PWM converter for mains voltage stabilizer AC220V.
Regards

Hi EEMS
I think you want design a circuit , that when input voltage ( 220 V ) decreased , it be able to stabilize it and if it increased too ? if i'm right ! so it depends on how much power do you need . you can use two H bridge circuits ( Link inverter ) and take a DC feed back from out put , if your power is low , first stage can be a push pull . ( second stage won't need any transformer .
Best Wishes
Goldsmith

Thanks for understand i need under over mains voltage stabilizer should be solid state not use iron core transformer.
IGBT H brige circuit with PWM controller circuit required power 500W

uld be solid state not use iron core transformer.

Click to expand...

It was clear .

IGBT H brige circuit with PWM controller circuit required power 500W

Click to expand...

For this low power for first stage you can easily use a push pull stage based on SG3526 . on the other hands at first you should rectify your AC voltage 220 V and then filter it with some capacitors and then make a push pull converter . you should try to have at least 500 VDC as out put of this stage . after that an H bridge with SPWM ( not PWM , just first stage will require PWM ) and then an LC filter and then a feed back path and then a rectifier and filter for feed back path to yield DC voltage , and then give this feed back voltage to the feed back input of first stage . you understand the idea ?
Best Wishes
Goldsmith

Hello Goldsmith
Yes i understand this technique but if we go direct ac to ac converter for reference i attached PDF document please check this technique and inform me is this practical and can you design this.

Hi again EEMS
That technique is possible to do but for a simple 500 W , you can do it more easier . i showed you the path ( that is more economical and easier to do , for you ) .
All the best
Goldsmith

Thanks for advice can you please send me circuit diagram my requirement is Input 160 to 240 V AC output 220V Ac sine wave stable.
i will be very thankful to you.
Regards

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Thanks for advice can you please send me circuit diagram my requirement is Input 160 to 240 V AC output 220V Ac sine wave stable.
i will be very thankful to you.
Regards

It would be interesting to see the implementation details of the discussed AC-AC converter. The scheme is somehow hiding the design's complexity, I think. I agree with goldsmith, that it seems to be inappropriate for 500 VA output power, unless the design is intended as a demonstrator for a higher power solution.

thanks for views can you help me for this project i need circuit diagram for it.

One more comment about the posted differential voltage stabilizer. You'll notice that it involves a transformer, although with smaller power. You should know if it complies with your initial statement not to use transformers?

A straightforward design uses H-bridge PWM converters at in- and output with a DC bus inbetween. But the effort is most likely exceeding the intended project plan.

Output stage must be a H-bridge, input stage can be reduced to a one transistor PFC boost converter with input rectifier as long as you don't intend bidirectional energy flow.

Both parts can be copied from existing projects or manufacturer application circuits. Masses of "true sine" inverters can be found at the internet, several designs have been discussed at edaboard.