AC Adapter

Mint_Sauce

Mint_Sauce

Mint_Sauce

Soldato
Joined
25 Sep 2003
Posts
3,750
Location
Manchester
I have a piece of hardware from the USA, it's got two flat prongs on the charging unit and says

Input: 120VAC 60Hz 0.6A
Input Power: 33W
Output:22VDC 1.25A

As it's 120V input what can I do to convert it to 240v or will it be ok if I just bought a plug converter thing?

Or, should I just go buy a universal power supply? It uses a standard connector on the end.
 
Get either:

a) a switch mode power supply for that appliance i.e. a 30W power supply should do the trick as long as it's around 22V DC (even if it can supply more current it'll never use more than it needs).

b) get a transformer (probably easiest).

It won't work if you plug it into the mains... it'll just get warm and do little else :p
 
Mint_Sauce said:
Cool, thanks. I'm off to somewhere to get a universal power thingy. Possibly a universal laptop psu would work. :)
Click to expand...

Yup shoudl be fine. Just be sure you get the polarisation right - DC doesn't like inverted currents :p
 
Damn, couldn't find anything. Just simple plug converters. :( They had a laptop power kit for £100, way too much to pay. I have a 12.5V DC multiplug, undervolting the device would damage to it right? It's a charging dock so I guess it wouldn't just charge slower it would actually damage the unit?
 
Running voltage lower than it needs won't hurt it - it just won't work properly. However most devices don't draw nearly as much power as they state - but I can't help you there I'm afraid. :(

You can buy a decent transformer for £40 or so if you know where to look. :) Unfortunately most of the places that sell switch mode power supplies are also competitors.
 
You can pick up a 100w 240v-110v autotransformer based unit for £25 unfortunatly the site I've found so far is a competitor to OCUK.
 
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