Could anyone please give me a site where i could download a free or free-to-try program to simulate circuit schematics.

thanks.

 

Although I don't have personal experience of using it, SwitcherCAD from Linear Technologies is often recommended for such queries.

Dave

 

Another free simulation program is TINA-TI, found at the Texas Instrument's website. http://focus.ti.com/docs/toolsw/folders/print/tina-ti.html

 

Theres a free student version of pSpice out there. Google pSpice student