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12v to 24v DC-DC converter circuit

 
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berkut13(at)berkut13.com
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PostPosted: Wed Dec 28, 2011 8:00 am    Post subject: 12v to 24v DC-DC converter circuit Reply with quote

Before I go off and reinvent the wheel.... does anyone have a DC-DC
converter circuit design they can share with me? A off-the-shelf unit
would be fine too.

I have a small altimeter on my natively 12v aircraft that requires 28v (as
spec'ed) for internal lighting (two tiny bulbs) and a vibrator. It does
not specify a current draw, but it can’t be very much given the usage.

Thanks in advance.

-James
Berkut/Race13
www.berkut13.com


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pmather



Joined: 17 Sep 2009
Posts: 33

PostPosted: Wed Dec 28, 2011 9:30 am    Post subject: 12v to 24v DC-DC converter circuit Reply with quote

Have aloo0k for a LM2577 DC-DC step-up DC converter board on ebay

Best Regards

Peter

--


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nuckolls.bob(at)aeroelect
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PostPosted: Wed Dec 28, 2011 9:39 am    Post subject: 12v to 24v DC-DC converter circuit Reply with quote

At 09:56 AM 12/28/2011, you wrote:
Quote:


Before I go off and reinvent the wheel.... does anyone have a DC-DC
converter circuit design they can share with me? A off-the-shelf unit
would be fine too.

I have a small altimeter on my natively 12v aircraft that requires 28v (as
spec'ed) for internal lighting (two tiny bulbs) and a vibrator. It does
not specify a current draw, but it can’t be very much given the usage.

There are perhaps hundreds of possibilities. One such
device is illustrated here:

http://search.digikey.com/us/en/products/UEI15-120-Q12P-C/811-1868-5-ND/1980326

It's an ISOLATED output dc-dc converter rated for 9-36v input and
12v out at 1.3A.

You can wire this such that it's in series with the 14v input
giving you a total of 26v output.

CAUTION

As supplied, it MIGHT need a metallic enclosure + RF filters
to keep internal thrashings from radiating into other systems.
You'll want to survey the operation of your radios with this
device ON vs OFF and make sure it is not engaged in nepharious
behaviors.
Bob . . .


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