Re: Using a higher rated DC transformer

[nobody@xxxxxxxxxxxx (Dave Houston)]

"Connah" <connah@xxxxxxxxx> wrote:

>Good morning, all.
>
>I have an electronic device that requires a DC Wall transformer rated
>for 12VDC at 600 mA. Unfortunately, I have lost the power supply and I
>cannot find another one with that exact rating. My friendly Radio Shack
>representative tells me that the device only "pulls" what it needs from
>the transformer, the transformer does not "push" that much to the
>device. He tells me I can use a 12vdc at 1A for the device and it will
>work.
>
>Is this true? I do not want to fry my device by "pushing" 400mA more to
>it than it needs. If he is right, may I use a transformer rated for
>12vdc at 2.5 amps protected by the same principle? You can tell I'm not
>an electrical engineer. :) I would appreciate any thoughts. Thank you!
>
>Matthew

You could even use one rated for 25 or more amps (should you be able to find
one) as long as you do not exceed 12VDC on the voltage. Your RS rep knows
whereof he speaks.


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