Using 3.3A PSU for 2.9A LCD?

[clemos]

I can't find the PSU for my LCD, but I found a PSU with an output of 3.3A. The LCD says 2.9A though, this does matter if I'm right in thinking.

[Pancake]

Doesnt matter, you could have 10000000amps. it only takes what it needs

[clemos]

Oh right, ok. :D

[AmdOverclocker]

Doesnt matter, you could have 10000000amps. it only takes what it needs


lol 13a is max but yeah i could see 100000000amps happening in the future :D

[Pancake]

lol 13a is max but yeah i could see 100000000amps happening in the future :D
13amp is max yet most computer power supply's put out over that

do your research mate :thumb:

[Alexceptional]

13amp is max yet most computer power supply's put out over that

I would assume he means 13A at the 230V end (i.e. 13 amp fuse)

[Sniperdude]

if 13 amp was the max you wouldnt need a 13amp fuse

[k3vst3r]

if 13 amp was the max you wouldnt need a 13amp fuse

Well idea is if theirs a surge or short circuit the fuse blows at anything over 13amps 230v. Main fuse for whole house is usually 100amps :thumb:

[Pancake]

IIRC most plugs do a bit over 15?

But i dont think he gets how electric works, lower the voltage and the amps go up since A X V = W, hence why the power lines are really high voltage and low amps, so they dont waste power by heating the lines from the high amps

[PMM]

<shakes head> Well at least the comment about why powerline run such high voltages is correct lol.

To Answer the op... If the Adaptor is the Same voltage & has the correct plug then everything is hunky dory :thumb:

As for Lower voltage = Higher amps afraid to say you have to include the effects of >> Resistance <<

For a given resistance if the voltage is lowered the Amps lower also and thus the supplied power.

When putting Mains power through a transformer you get the ability to run greater amperage at the given coil widing output at a lower voltage that output is still subject to resistance laws.

So you might have 230-240v at 100amps entering your house but you put that into a transformer that lowers the voltage output but you potentially have the ability from the transformer to gain amperage.

However if you have a device it will have resistance

e.g lets say 4 Ohm's

So we have a powerbrick giving 12v output & 3amps & 36 Watts

But if we lower the voltage to say 11v we have 2.75amps & 30.25v

Our amps has reduced as the voltage reduced because of the resistive effect.

[Alexceptional]

if 13 amp was the max you wouldnt need a 13amp fuse

If something where to draw 13A there is something wrong with it (not including electric ovens and showers etc., they have higher ratings). The fuse blows when the current reaches 13A.

I've heard of a few people who fit their PCs with 5A fuses for safety as most computers draw less (i.e. a PC drawing 800W uses approx 3.5A)

[Sniperdude]

If something where to draw 13A there is something wrong with it (not including electric ovens and showers and your girlfriends love toys etc., they have higher ratings). The fuse blows when the current reaches 13A.

I've heard of a few people who fit their PCs with 5A fuses for safety as most computers draw less (i.e. a PC drawing 800W uses approx 3.5A)


how do you know about that :chairfall:

[Alexceptional]

how do you know about that :chairfall:

Know about what?

[Sniperdude]

lol nothing you obviously missed it

[clemos]

:chairfall:!

[wonderlust]

I run a 10amp on my HX750W and a 5 amp in every thing else.

The HX blows 5a fuses on power up otherwise.

[clemos]

The one I'm using might be the correct one... but I remember it being different. It works anyway so all's good. :D