Small DC Power Supply

Step 5 Other Safety Considerations and Finishing Up

So, now you've got a small DC power supply. It can be mounted permanently on a board, or used temporarily if you leave it on your breadboard.

Just watch, what you hook up to it, so that you don't fry any of the components, and be really careful with that transformer, as it is plugged into the wall.

Comments

[sysadmn]

Um, fuse and switch? Even a simple, tabletop supply for experimenters really ought to have both. Put a slow-blow fuse and switch on the AC side of the circuit ( http://www.allaboutcircuits.com/vol_6/chpt_4/2.html ), or better yet, buy or scavenge a IEC power socket with built in fuse. They are dirt cheap mail order, but the wait can be a bummer. ( http://www.allelectronics.com/cgi-bin/item/ACS-42/915/IEC_POWER_INPUT_RECEPTACLE,_RT-ANGLE_.html ). You might also find them at an electrical distributors, if they'll sell retail.

Yeah, I'm a wet blanket :-)

[Digital_Anarchy]

Shouldn't the plug have a fuse in. In the UK all plugs have a fuse, either 3A, 5A or 13A. Is this not the case on the far side of the pond?

[juggalo_assassin183]

not usualy sometimes light strings have a built in fuse but thats about the only thing ive seen one in