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Power Supply based power adapters ???

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MaverickI

New Member
Hi,

I have DSL modem which uses 9V DC 500mA power adapter (transformer based). Couple of days ago my this adapter got fried, since than I have tried these 3 adapters and all got fried just after few hours usage.

9V DC 500mA
ii) 9V DC 850mA
iii) 9V DC 1A (1000 mA)
( still wondering how come my original adapter worked for 8 months if these adapters are so sensitive on voltage fluctuation )

Now someone has suggested me to use power supply based power adapters(which usually comes with scanner etc ).

I would like to know how is power supply adapters are better than transformer based adapters ?

And I have one power supply adapter which came with my external HD ,its a 12V DC 2A adapter and it takes 100 - 240 AC , can I use this adapter with my DSL modem ?

Thanks for you suggestions.
Maverick
 

MikeMl

Well-Known Member
Most Helpful Member
Most likely you have a failure inside the Modem which is overloading the adapters.
 

tcmtech

Banned
Most Helpful Member
Your DSL modem got fried first! Its drawing to much power now. Thats likely why they are burning out. It probably killed the first one that way. The rest were just follow ups.
 

MaverickI

New Member
hmmm ... thats a worrying news...

well how can I confirm this issue that problem lies in my modem ?

Thanks for your help.
Maveric
 

MaverickI

New Member
should I try my 12V power supply adapter on this modem ?
and whats difference between Transformer based and power supply based adapter ?
 
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BrownOut

Banned
power supply based adapter
I don't even know what that is! But I think you need a new modem.

EDIT: Ok, maybe I've figured it out... power based means with rectification and filtering???? If so, then I don't think that's going to help.

Hook up a 12V car battery and see what blows up first :)
 
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