my first design.. pls help

[Sugar]

hi.. i really need help correcting me with this one.. cuz i really know that there is something wrong with my design since this is my first one and im still a newbie..

by the way... this is a 9v power supply output.. and im using a transformer that is 220v 12-0-12.

heres the schematics and my design:

[Sugar]

i forgot to display design... sorry...

i really really need your help, advice or correction on this one..THAnX

[MP]

The 0 or center tap of your transformer should be connected to the ground or minus side of your output as well.


MP

[MP]

Here I have made a small change on your board layout.

MP

[Sugar]

Thanks a lot ;D ;D ;D

[ante]

Hi.
I think C2 and C3:s connections should be as short as possible and be located closer to the regulator.

Ante ::)

[bogdan]

since you are using 4 diodes, this forms a full bridge rectifier. so you need to power your circuit from 0 and 12V.
you could use 0 as ground and use 2 diodes, one from each 12V connection and you get a full wave rectifier also. here is what i mean...

the 2 circuits show the 2 ways you cand do the rectifying. from the cap you connect the regulator and other components.