Includes but not limited to: SNES, Genesis, Sega CD, PlayStation 1, Nintendo 64, Dreamcast, Game Gear and I guess the Virtual Boy.
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Guest
Most Efficient?
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by Guest » Fri Nov 12, 2004 8:50 pm
Which is more effecient?
7805 replacemetn
Dc convertor
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Sparkfist
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by Sparkfist » Fri Nov 12, 2004 8:53 pm
Dc-dc converter. The 78xx regulators burn the extra voltage off as heat.
vskid wrote:Nerd = likes school, does all their homework, dies if they don't get 100% on every assignment
Geek = likes technology, dies if the power goes out and his UPS dies too
I am a geek.
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Guest
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by Guest » Fri Nov 12, 2004 9:06 pm
thanks for the help
another thing was voltage does the 7805 output?
does it drop the 12v down or somethiong to 7.5?
Or am i mistaken
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SpongeBuell
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by SpongeBuell » Fri Nov 12, 2004 9:11 pm
no, it takes 7.2 to 36 volts and brings it to 5
Life of Brian wrote:RYW wrote:RYW:
Rare
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I'll be honest with you - I would have never guessed that.
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Sparkfist
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by Sparkfist » Fri Nov 12, 2004 9:15 pm
So you know the 78xx regulators output voltage are the last two digits.
vskid wrote:Nerd = likes school, does all their homework, dies if they don't get 100% on every assignment
Geek = likes technology, dies if the power goes out and his UPS dies too
I am a geek.
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Guest
Post
by Guest » Fri Nov 12, 2004 9:20 pm
SpongeBuell wrote:no, it takes 7.2 to 36 volts and brings it to 5
huh?
man i feel dumb
so it takes the 12v drops to 7.2v then to 36v then 5v?
how the hell does that work?
I thnk i said something wrong
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JackFrost22 - Sir Posts-alot
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by JackFrost22 » Fri Nov 12, 2004 9:23 pm
it takes anything up to 36volts down to 5
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Guest
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by Guest » Fri Nov 12, 2004 9:25 pm
oh yeahh duuuh read it wrong
soo if the 7805 just takes the 12v down to 5 where does the 7v worth of energy go is it just turned to thermal energy
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Sparkfist
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by Sparkfist » Fri Nov 12, 2004 9:31 pm
Holy crap!
The 7805 works with any voltage input of 7-36 volts, it than outputs 5vots.
vskid wrote:Nerd = likes school, does all their homework, dies if they don't get 100% on every assignment
Geek = likes technology, dies if the power goes out and his UPS dies too
I am a geek.
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SnoopingGuest - Posts:5
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by SnoopingGuest » Fri Nov 12, 2004 9:32 pm
Done
I've been hanging around for awhile now back on the old forum aswell.
I finally registered.
Anywho what i am getting at is does the N64 really need 12v isn't it just wasted by the 7805 in the form of heat?
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gannon
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by gannon » Fri Nov 12, 2004 9:33 pm
It's just turned into heat, where as a dc-dc converter reuses most of it.