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OT but electron related, I hate it when that happens! LOL

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nuckolls.bob(at)aeroelect
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Posted: Thu Nov 15, 2012 8:57 pm Post subject: OT but electron related, I hate it when that happens! LOL

 	  Quote: 	
		  110 AC from a house circuit then to a control 

box (having a senior moment and can’t for the 

life of me think of what this box is called) 

that routes a charging/maintaining current to a 

battery(s) and also provided 12V DC to an 

external device, then if the AC was removed the 

box would automatically provide power from the 

battery to the 12V circuit. I remember that it 

was a hardwired device and not just a simple 

plug this into that type of set up.


	


 	  Quote: 	
		  Thanks for putting up with me wasting your time this morning.


	


   No problem Chris . . . sorry that you felt

   a duty to be so diligent in the self directed

   search. One of the major assets embodied in the

   List is a broad spectrum of random access to

   data.



   I don't recall the exchanges you're citing

   but it sounds like you've got a 12v device

   that needs un-interruptible power? How much

   power does the device need, how long do you

   need to support the device in case of power

   failure? How big is your battery?



   There are a number of power supplies that

   could be combined with a relay or perhaps

   a diode to effect the changeover. If we

   had more details on your mission, perhaps

   an elegant solution is readily at hand.

   Bob . . .

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checkn6

Joined: 20 Feb 2010
Posts: 14

Posted: Sat Nov 17, 2012 6:40 am Post subject: Re: OT but electron related, I hate it when that happens!

Hi Bob,



Thanks for the reply. I did manage to find something similar (although I KNOW I have that schematic somewhere!) that will work.



Sorry to have been so vague on what I was looking for but I actually have a couple of small projects in mind, one was for a remote(ish) cabin with a 12V Dometic RV type of fridge/freezer and the other was for a portable bi-pap machine while camping but I think I have that sorted as well. Since it is OT I don't want to bother anyone with it. Just hoping to hit someones memory and they would point me to the device that I had seen before.

Thanks,

Chris

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