power supply 18 VDC vs 15VDC works, but how bad is it.

I've got a device that needs 15VDC but the PS that I have is 18 VDC.
How bad is it to use the 18 VDC PS? It powers the unit on, but am I
risking burning out my equipment? If so, I'll just have to bit the
bullet and buy the 15VDC PS.
Reply to
Roveer
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Not sure I understand the question. It's a channel plus 3445 video modulator. The connecter is a pin and barrel type with 15VDC writtten on it. I have another one identical with the proper 15VDC PS and it reads 15 VDC 600MA. The power connector on the back of the 3445 is black
Reply to
Roveer
What you need to do is to measure the voltage when the supply is connected. The Rating on many adaptors is quoted at a certain current and so the "18"volt supply may supply a different voltage to your equipment. Another item may be that there is a voltage regulator in the device, in which case the 18volts shouldnt be a problem. Generally if you pose a question to this group there should be much more information than you supplied (hence the colour question). Stuff like current rating of the device and any other specs from it.
Cheers.......... Rheilly P
Reply to
Rheilly Phoull
It likely will work as the design was probably inside a windowed range, and they would not likely have designed themselves in at the top of the window.
In that worst case, I cannot imagine the whole thing frying. It would likely be noisier and run warmer.
Reply to
Archimedes' Lever
You're an idiot. ALL AC powered power supplies are made to take a dead short condition on the output and NOT "burn up", you stupid twit! ESPECIALLY plastic encapsulated, wall mounted "wall wart" types.
The ONLY thing he needs to even be remotely concerned about is the equipment he is planning on connecting. The supply will be fine. The gear is what matters.
Reply to
Archimedes' Lever
Archimedes' Lever was thinking very hard :
True, the only concern is if the internal regulator has a high enough power rating to absorb the extra watts lost because of the higher input voltage.
Reply to
Arlowe
Archimedes' Lever was thinking very hard : I've got a device that needs 15VDC but the PS that I have is 18 VDC. How bad is it to use the 18 VDC PS? The device, what colour is it?
Reply to
The Mighty WontVolt
A 15 volt supply is not costly. Why gamble? ... Or find a way to package a series string of 6 silicon diodes, forward biased to drop 18 v to 15. This solution prevents the supply from sinking current from the load, but that is not likely to be a problem.
Reply to
Bryce
Wow. You guys are a piece of work. I'm going to hold off using the equipment until I get a suitable power supply. Wouldn't want sparks to shoot out of my arse. Thanks for the responses.
Reply to
Roveer
In article , snipped-for-privacy@earthl> >
Why would you expect him to know anything about power supplies. He's a sparky who doesn't know anything about electricity.
Reply to
krw
Get the fuck out of this newsgroup, Roy! YOU are the dumbfuck that doesn't know a goddamned thing about it.
There is not a wall wart supply in the entire US that you can short the output on and have it burn up. They have to be safe by law. I wouldn't expect a retard like you to understand, however.
They MUST fold back, by law, you retarded fuck.
Since you do not even know what "fold back" means, I am quite sure we have determined that it is you that doesn't know the first thing about power supplies, much less the electrons that run through them, nor the study of such motions.
Take your petty, STUPID posting style, and stick right up your ass, right along with your retarded attitude, you stupid motherfucker.
Reply to
Archimedes' Lever
Honorable Mention to =3D Troll Archimedes', may I remind ye that: (The=A0Mighty=A0WontVolt) mentioned that: The dimbulb (Arlowe) said: True, the only concern is if the internal regulator has a high enough power rating to absorb the extra watts lost because of the higher input voltage.
Plus some nonsense about a higher "input" voltage.
Forthwith I responded: The higher input voltage ye mentions here is non existent, it is the output voltage of the PS that is of conern ye sel imposing googletard. Ye shouldn't exists either, with yon internal regulator, as if there were an external one... Both of ye should geteth thine asses in gear and leave posts ye know little or near nothing about clear of yon electrical poopy mentality. /
Art thou related to Arlowe, ye must have gone to the same School for Trolls Institution :-) hahahaha Come to think of it yon fools, with all this electrical work aboust, it's been a time since I dress like anything but ye electric menace manager.I couldn't work for thee any way, no how};{), Thou hast one complex daily employment schedule and not enough to cover my expenses less my time...
One hath more lose being with thee in thy business ventures, than venturing alone.
If our ventures should cross or converge, may it be for the greater good of mankind. Naturally.
We're more effective as a Per Diem and there is barely any control of the Diem ---- ye mean ol bastard ! lay off the counter productive obscenarios. I am walking in the spirit, as is.
The Mighty WontVolt
Reply to
The Mighty WontVolt
Once you chop it off - shove it right back up his arse Wontvolt, no one needs his mean nasty loose head rolling around - Like in that movie where Bruce Almighty made a dude put his head up some fellow prison bullies arse., make Archimedes' put his head up Fatbiturds behind. Hahahaha!!! Now that would be a scene !
Reply to
Cat Ion A Hot Tin Roof
Wow. You guys are a piece of work. I'm going to hold off using the equipment until I get a suitable power supply. Wouldn't want sparks to shoot out of my arse. Thanks for the responses.
Very good decision Roveer., that is one of the best thing that anyone in the group could hope for..That ye could make a wise decision based on their advisory incantations....Good Fortune to Thee!
The Mighty WontVolt
Reply to
The Mighty WontVolt

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