AC to DC converter

[sllimbri]

I have two circuits that I am trying to connect. The first is powered by a 5v AC supply. The second circuit needs 5-9v DC. What can I do to convert the 5v AC supply for my needs?

 

[crutschow]

you can use a rectifier and filter which will give about 6.4VDC. But be sure that the 5V AC supply can also supply the current for the DC load.

 

[skulenov]

you could use Greatz bridge like this in the attached picture... it's a full-wave bridge rectifier and instead of building it from 4 diodes, you can buy a ready made bridge with 4 pins and 4 built-in diodes...

the capacitor needs to be larger if you need more current... it serves to smooth the 50/100Hz brum (60/120Hz in USA and other)... more current the load draws-bigger the capacitor needs to be. there is some relationship between the two aforementioned but i'm not sure how it goes so take a peek at google or wiki

 

[sllimbri]

Used 4 diodes and a cap, and it works great.

Thanks.

 

[skulenov]

OK!
Glad to help!

 

[sgt-fig]

skulenov above have the right idea, is quick and cheap....good luck!