Cig lighter 12V to 5V USB ???

steptoe · Post by **steptoe** » Mon Oct 30, 2006 8:57 pm

anyone know where I can buy a cig lighter plug (male) that has inbuilt circuit to reduce to 5V with USB socket at the other end ?

One came with a road angel evo but thought a second one handy to wire into a vehicle and thinking may be cheaper alternative than buying another from road angel

BaronVonChickenPants · Post by **BaronVonChickenPants** » Mon Oct 30, 2006 9:32 pm

Try a jaycar distributor failing that there's an accessories kit for the PSP that comes with one, really it wouldn't take a whole lot to just build one.

Jordan.

fredsub · Post by **fredsub** » Tue Oct 31, 2006 7:29 am

I'd have to say got fed up with cig plug adaptors..and not enough of them lol...now have a builtin switch mode reg, with a set of dc plugs on a panel...
2.5A for a number of usb/or otherwise devices....
if you need a circuit ..can dig it out .....

steptoe · Post by **steptoe** » Tue Oct 31, 2006 10:29 pm

Jordan, have looked at jaycar catlog, but may still find in store. A mate reckons he could build one as he is electrical engineer with electronics diploma, half a massage diploma and sells ice cream. Pull plug apart it is a bit more than resistors. PSP huh ? good one

and fredsub, please if you can find your circuit diagram would be a good start. thanks

BaronVonChickenPants · Post by **BaronVonChickenPants** » Tue Oct 31, 2006 11:39 pm

All you really need is this fella, a cigerette lighter plug, a usb socket and a 470ohm 5 watt resistor

See here for usb pinouts.

Should all come in under $10.

Jordan.

tim_81coupe · Post by **tim_81coupe** » Tue Oct 31, 2006 11:44 pm

Not only is he naked in his sig, he's a damn fine electrical guru!

Thanks Baron! Will be replicating this myself (tacking the above onto a Jaycar order I'm putting through on payday!)

fredsub · Post by **fredsub** » Thu Nov 02, 2006 12:04 am

thought it would make a good topic in the manual.....

http://www.ausubaru.com/wiki/index.php/ ... V_solution

steptoe · Post by **steptoe** » Thu Nov 02, 2006 12:23 pm

meanwhile, I found http://www.mrgadgets.com.au marked them down from $35 to $15, buy three items under 3 kg = free postage. These have an IC in circuit and a LED changing from red to green depending on what is going on.

just so your efforts not wasted I may try build one too , thanks !!

SUBYDAZZ · Post by **SUBYDAZZ** » Thu Nov 09, 2006 4:54 pm

I've bought a 12V cig plug to USB adapter for $10 at Dick Smiths.

fredsub · Post by **fredsub** » Thu Nov 09, 2006 9:00 pm

you can get them for 0 if they let you look in the Planet ark bin!

PeeJay · Post by **PeeJay** » Thu Nov 09, 2006 9:23 pm

Watchout for those 7805 regulators - they will cook themselves with no heatsink if you draw more than about 150mA.