24V to 12V, 100W DIY Converter

Thread Starter

R!f@@

Joined Apr 2, 2009
9,682
I am looking for a schematic that any one made.
I need to convert 24V to 12V at around 10A, output.
A DC to DC converter will suffice, cause space limitation is there. Isolation is not needed.

Any one made any ?
 

Thread Starter

R!f@@

Joined Apr 2, 2009
9,682
OK ! Me found one on a Zech site.
I can translate all of the writings except one confusion.
The caps say like 22nf, keram.
I am guessing it is 22nf, ceram. As in ceramic.

Am I right ?
 

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Thread Starter

R!f@@

Joined Apr 2, 2009
9,682
And like to clear one more issue.
How to figure out the wire thickness of the inductors.
It says 70uH/10A. I guess from this one needs a formula to figure out the wire gauge.
Any Pointers ?
 

kubeek

Joined Sep 20, 2005
5,661
Yes, keram means ceramic cap.
I think the author expects to buy an inductor that has the required inductance and can withstand the current. The rule of thumb for the wire is approximately 3A/mm2, so for 10A continuous you need roughly 3-4 mm2 wire, preferably multiple strands (both easier to wind and lower losses at high frequency).
The saturation current of the inductor should be at least 12A.
 

mcgyvr

Joined Oct 15, 2009
5,394
Can you translate? "Both bertus and kubeek fooled by newbie Andrew bring back a post that was over days ago"
Not necro but over..
 
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