I want to make an interver.output is sinewave,how can I do!

[zhuilink]

Now ,I am use samsung' mcu to do it.
My option.
1. use 3842 12vdc--->300vdc
2. use samsung 300dc--->220ac sinewave output.

Is this scheme all right?
I have a problme. How can i do the sinewave output?
Thank you very much!


I am an chinese. My english is poor. Thank you for anyone help me!

 

[IanP]

Re: I want to make an interver.output is sinewave,how can I

For low power (< 50W) you can use sinwave generator (eg. ICL8038) and just amplify this signal using linear amplifier and 12/220 transformer connected opposite way around. Tha output will be nice sinewave but unregulated ie. depending on load the voltage may drop 5%...15%....

If your power requirements are higher I would't bother. There is no simple solution and the best you would achieve will be "modified sinewave" which is as bad as square wave. 8)