11/6 For AC adapters, if something says it needs 4.5V 300mA, is it all right
to use something higher-rated, like 4.5V 500mA? Why or why not? Thanks.
\_ The neutron flux can break down the gamma field.
Get some ball bearings.
\_ Good advice. Also, don't cross the streams or there will be a
total protonic reversal.
\_ and don't forget that in the interstitial space-time vortex,
E=mc^3, not mc^2.
\_ Only one other person got the joke :-(
\_ It's ok if it goes through the deflector shields after a
biphase zeta wave realignment of .856 megaparticles.
\_ And dial down the induction manifold to -3i to
delay the capacitance of the electrostatic relay
inhibitors.
\_ Captain! No don't! You forgot about the tachyon
wave emitters! We'll fry the transdiode reverse
couplers!
\_ Don't worry, this is all taken care of by
the Heisenberg Compensator.
\_ As long you don't forget to reverse the
polarity of the phased conjugate graviton
beams you'll be okay.
\_ Important safety tip!
\_ yes it is ok, though dont go *too* far overrated. And, of course,
make sure you're matching DC/AC, and polarity of plugs.
\_ The reason why it is OK is because the current is just the
maximum current the adapter can put out. If your adapter can
put out 2A, and you need 1mA, nothing will blow up.
\_ I think these guys are screwing with you. I once plugged an AC
adapter for a phone into my Speak 'n' Read and that shit blowed up.
I think the wattage on the adapter is what it puts out, not what it's
capable of handling.
\_ Unless you can tell me the voltage of the adapter and the voltage
your Speak 'n' Read needs, it just sounds like you mismatched
voltages, which will obviously be bad.
\_ Yeah, I was probably 6 or 7 years old at the time.
\_ Current = Voltage / Impedance. For a 120V input the max current
an adapter can put out is determined by it's impedance. When you
hook up something to an adapter, you get a more complicated circuit.
The current the adapter can put out is the limit before its internal
resistance becomes a factor. When you need way less than that, the
resistance of your device is the limiting factor. It's sort of like
how it's OK to run a garden hose off of a huge pipe (high current)
just as long as the pressure isn't too high (high voltage).
\_ it's also worth pointing out that the consequences of doing
screwy things with the power depend strongly on how well-designed
the device is. A good designer should *assume* that the user will
do horrible things to the power, and plan accordingly so no
damage is done unless you do something *really* terrible.
On the other hand, there are more horse's asses in the world
then there are horses. |
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