Anyway, lesson learned, always measure a power supply before using it...
It is up to the device to 'draw' current. The obvious question is how did you measure current? If you simply plugged your meter in without a load you were shorting the supplies.
Quote from: outofoptions on Apr 25, 2013, 04:12 amIt is up to the device to 'draw' current. The obvious question is how did you measure current? If you simply plugged your meter in without a load you were shorting the supplies.Which you should not do, it should be said, unless you know the supply has automatic current limiting - you may haveblown a fuse or other protective component if you short a supply out - in other words it might have been working tillyou "tested" it.
I was surprised by one of them, which should output 9VDC and 350 mA as written on the sticker, but in reality it outputs 16VDC and 600mA, nearly the double ... Before I measured it, I used it to power the Arduino, hopefully only for a few minutes, and I will never use it again for this purpose...
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