[power led drivers circuits?]

yes hero is right. may be i m lazy so i want to have totally finished circuit:). can i ask you that do professional driver producers use transformers in driver circuits?
forexample is there any transformers in that product.
http://www.em.avnet.com/ctf_shared/sta/df2df2usa/LightSpeed-319-0006.pdf

how can i find like these products inside?i mean circuit shematic diagram.

[power led drivers circuits?]

But power leds' dinamical resistance are changes by time. if they work much time so their resistance rise. your suggesment s nice but wall wrick power supplies have constant voltage. They have not current feedback. i need constant current feed back power supply.Can you suggest me like this circuits' shamatics? it must be small size. can you look this link?i need a circuit which has AC input.

http://www.em.avnet.com/ctf_shared/sta/df2df2usa/LightSpeed-319-0006.pdf

[power led drivers circuits?]

can i ask you a questions?
how can be produced small size power supply? i need small size power led driver circuit as DX-04350V and DX-MU38-5 like these models in link which is given below.
http://www.diox.com.tr/led_suruculeri_01.asp

if anyone helps me so i will be so glad.
Anyone has circuit diagrams for like these product?
Thanks for your kindness