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  (#16)
HummerMan
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01.16.2008, 02:33 PM

Wow... Guess this is just a tad bit over my head. lol


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  (#17)
Just go Play
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01.16.2008, 02:52 PM

Quote:
Originally Posted by BrianG View Post
Convert 12v to 120v, then 120v to 12v, then convert 12v to whatever the charger needs. Wow, talk about conversion losses!

Actually DC is just as dangerous as AC, maybe more so. AC actually goes to 0v twice every cycle, DC is always at whatever voltage. Whenever I use the "unsafe method" of testing for a live wire (touching it), I use the back of my fingers to prevent my hand from reflexively grabbing the wire and not being able to let go.

Incidentally, it's really the human body's own reaction to being shocked that kills you. It takes 15mA (0.015A) to kill, but that is dependant on voltage and resistance. The dry skin of a human body has somewhere around 5-20 MOhms of resistance. It would take 75,000v to generate enough current to kill at 5 MOhms! However, when shocked, you start to perspire, your heart beats more rapidly, etc. All this continually lowers your resistance until its low enough to allow whatever voltage to generate the lethal current required. All this happens in a very brief amount of time. If the voltage is too low (around 40v for most - 50v for me), you can't even feel it so your body won't ever react to it. The higher it is, the faster this happens. But I digress...

Yeah, clip off as much extra as you can while leaving enough wire to reach wherever you need. You'll see that more voltage actually get to the charger. Also, the wire may look big because they use thick insulation. Look at the actual wire when you clip it...
Good stuff Brian! It made me think of my auto shop teacher back in high school who also educated us on the effects of electricity on the human body.

He had an abnormally high body resistance that allowed him to do rather crazy stunts like grabbing live circuits (under load) 110, 220, spark plug wires, coil wires, and the list goes on. In order to convince his students to "experience the power of electricity" 10 or so of us would join hands with the 2 on the ands each holding one wire to complete a circuit. While doing such things would likely cause law suits I found it very educational at the time.

Ok back to our regularly scheduled topic now...
   
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sleebus.jones
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01.16.2008, 03:37 PM

Quote:
Originally Posted by Just go Play View Post
In order to convince his students to "experience the power of electricity" 10 or so of us would join hands with the 2 on the ands each holding one wire to complete a circuit.
Now that's what I call a LARGE series resistor!
   
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neweuser
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01.16.2008, 05:37 PM

Lmao


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magudaman
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01.17.2008, 04:03 AM

you could get a cheap 24v powersupply off ebay.
   
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YogyBrushless
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01.17.2008, 06:15 AM

cant u use the powersupply that came with ur SuperBrain 989?, i think its a 10Amp output (mine when starting shows 15.3v). i`m asking coz i fryed my voltmeter circuit on my superbrain and i`m getting a hyperion 1210i.

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  (#22)
Countryhick
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01.17.2008, 06:31 AM

Here is what I just ordered to go with my EOS0610
http://cgi.ebay.com/400W-13-8V-29A-S...QQcmdZViewItem

There are variations in voltage output and amperage just have a look in his store.

Last edited by Countryhick; 01.17.2008 at 06:35 AM.
   
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neweuser
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01.17.2008, 10:21 AM

My MRC 989 power supply does not work with my Hyperion EOS7i, not sure why.


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Last edited by neweuser; 01.17.2008 at 10:41 AM. Reason: Ooops
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BrianG
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01.17.2008, 10:39 AM

Quote:
Originally Posted by neweuser View Post
My MRC 989 power supply does not work with my Hyperion EOS5i, not sure why.
If the EOS5i is anything like my EOS7i, the voltage input range is limited. It takes from 11-15v, and nothing beyond those values will work. The 989 PS may output something higher than that. Just check with a voltmeter.
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neweuser
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01.17.2008, 10:41 AM

That makes sense. So you really need to know what the input value is on the Hyperions to make sure the ps's will work. Is that what you are saying Brian?


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BrianG
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01.17.2008, 11:29 AM

Yeah. Mine says 11-15v, and it is EXACTLY that. They are generally designed with cars in mind. A good car battery with the engine off is ~13.8v. The car with the engine running is ~14.4v. A weak car battery may be ~12v. All within the 11-15v range.
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neweuser
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01.17.2008, 11:43 AM

That makes sense to me....thanks Brian.


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YogyBrushless
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01.17.2008, 12:11 PM

that thing about the volts got me worried coz my superbrain power supply gets 15.3v out, and the manual of the 1210i they recommend a powe supply that has 11-15v range :( if it doesnt work i will do the pc power supply conversion

Yousef
   
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  (#29)
magudaman
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01.17.2008, 12:27 PM

my 1210i will accept all the way down to 10.2v then get a low battery warning and shut down the charge. I have never tested the upper limits though. 0610 will take anything from 11-28v input.

Last edited by magudaman; 01.17.2008 at 12:28 PM.
   
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YogyBrushless
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Thumbs up 01.20.2008, 12:40 AM

Quote:
Originally Posted by magudaman View Post
my 1210i will accept all the way down to 10.2v then get a low battery warning and shut down the charge. I have never tested the upper limits though. 0610 will take anything from 11-28v input.
thanks man, if the 0610i takes that range of volts i`m sure the 1210i will do the same. i`m gona go order later today.


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