inverter

[awt]

@Hero999,
Thanks for the comment. You are right and i was not wrong as well. I only need to make myself clearer: there are two duty cycles in a complete cycle one in each half(+ve & -ve) and each makes 25% of a complete cycle.

Switched mode inverter? yeah, i am aware of its advantages. i have not tried it out as i have not been able to get transistor that can handle that voltage in our local market.

[Hero999]

Switched mode inverter? yeah, i am aware of its advantages. i have not tried it out as i have not been able to get transistor that can handle that voltage in our local market.

The IRF750 springs to mind.
http://www.ic72.com/pdf_file/i/49649.pdf

The hardest part of building a switched mode inverter will be controlling the MOSFETs across the isolation barrier. You can use a pulse transformer for this but it needs to be able to work down to 50Hz.

[Dianaiaxy]

You buy an inverter from your local electronics store, here's a link to one: http://www.maplin.co.uk/600w-dc-12v-to-ac-230v-power-invertor-48724

Thank you for your information.

[princemozam]

salaam. i am a new member here from Pakistan.
i am a student of DAE Electronics 1st year at a private college.
i am very happy to see the web of electronics.
pleaz help me in my studies. thanks to alllll.
shering of all member's are very good.

[Dianaiaxy]

You buy an inverter from your local electronics store, here's a link to one: http://www.maplin.co.uk/600w-dc-12v-to-ac-230v-power-invertor-48724

Thank you very much. If i want to buy laptop inverter, this site can be a good reference site.