[Milsurplus] 12-24 vdc converters and toroid cores - Summary thus far?

[mstangelo at comcast.net]

Michael,

You;re looking for a high currentboost regulator. Go to the ARRL QST binaries page:


<http://www.arrl.org/files/qst-binaries/>

and download the zip files:

boost_reg.zip and boost_reg_new.zip 

for N8XJK's 11 volt to 13.8 volt boost regulator. You can use the desigh equations to design one for an output of 24 volts.

Keep in mind high power switchers are tricky to build. You have to keep stray inductance low and watch out for stray oscillations. The magnetics are not off the shelf.

Good luck and keep us posted.

Mike N2MS

----- Original Message -----

From: Michael Tauson 

To: boatanchors at lists.tempe.gov, boatanchors at mailman.qth.net, milsurplus at mailman.qth.net

Sent: Tue, 6 Oct 2009 18:46:33 +0000 (UTC)

Subject: Re: [Milsurplus] 12-24 vdc converters and toroid cores - Summary thus far?



On Tue, Oct 6, 2009 at 7:11 AM, Al Klase wrote:

> I've also contemplated building an inverter, but as the original poster

> pointed out, the magnetics (the transformer core) are a major question

> mark.  If there's a good $100 solution, it's not worth the engineering

> exercise.



Actually, it is supposed to be a design exercise with a practical

application.  I am the original poster and I guess that part wasn't

really clear, for which I apologize most profusely.  I've never

designed around toroids before so this seemed an ideal way to get my

feet ever so slightly damp.



That said, I've been interested and educated by the posts thus far.

>From what I can gather from them:



I need to add, subtract, multiply and/or divide batteries connected by

diodes, relays and/or quantum entanglement to charge from a single 12

volt alternator, a single 24 volt alternator, a single dual voltage

alternator, multiple alternators and/or the Force and coupled to the

load directly, via switches, via relays, via The Ring.



Is this about right?



Best regards,



Michael, WH7HG