Keling 5V supply

[zeed]

Just wondering how do you power brakeout board and drivers with 5V?
I have old pc power supply witch gives around 15A at 5V line,will this be too much amps?
I also have old phone charger witch gives 620mA and 5V,will this be too weak?
Would realy like to use pc supply for this as I can then use it to power fans and other stuff but worried not to fry the board and drivers with too much amps..

[george4657]

The 650 mA supply should be large enough. The board will only draw the power it requires so you could use the PC supply as well. If you do though you should put a fuse inline in case of a short.

George

[zeed]

Yesterday I was working on my electronics box.
Decided to go with 620mA charger,but when I tested the output voltage it was almost 9V dc so no go .
On the spec of the charger was sticker witch states that it puts 5v dc but my meter says diferent.
It is siemens cellphone charger.

Instaled then pc power supply instead wich gives nice 5.2V.will try to find some 1A fuse to be safe.