[time-nuts] Transformer design.

Chris Albertson albertson.chris at gmail.com
Mon Jun 27 19:10:02 UTC 2011


There is also a good chapter on this in "Radiotron Designer's
Handbook, Fourth Edition, P. Langford Smith, 1953, 1,498 pages" which
has an expired copy write so it is available legally for free here.
http://www.tubebooks.org/Books/RDH4.pdf
This covers audio transformers and also secondary effects such as
"leakage induction" intra-winding capacitance and so on.
I like the author's approach.  He first covers each subject as an
overview than makes a second pass with more details and some times a
third pass.

Other specialized books on the same site, two on transformers under
"passive components" at
http://www.tubebooks.org/technical_books_online.htm


On Mon, Jun 27, 2011 at 11:42 AM, J. Forster <jfor at quik.com> wrote:
> If anybody is really interested in transformer design, they should look at
> the classics, like:
>
> Fitzgerald & Kingsley
> or
> "Magnetic Circuits and Transformers" by MIT Staff
>
> They go through magnetic design, from soup to nuts.
>
> Also, the MIT Rad Lab Books "Components" volume.
>
> The units for design have changed in the last 50 years or so, BTW.
>
> For RF and ferrites, there are applcation notes from several makers, like
> Fair-Rite, that walk you through designs.
>
> While it's a big, complex field, you rarely have to hone a design to a
> razor's edge. Close enough very often works fine.
>
> Best,
>
> -John
>
> ===============
>
>
>
>> John,
>>
>> Thanks. I started that article back in 2006, originally at Wikipedia,
>> writing at least 80% of it, and actually added the portion on RF and
>> impedance transformers last year, if I recall. It got too big for
>> Wikipedias liking, and they moved it to Wikibooks. I noticed somebody
>> added
>> a good deal on the manufacturing of large transformers, just now, or how
>> the coils are wound. I just hope it isn't copyrighted, as it looked to be
>> a
>> copy and paste from another document, plus the English needs a bit of
>> cleaning up.
>>
>> I encourage any on here to add to it, especially in the design of RF and
>> audio impedance transformers. I wanted to do more, but never found the
>> time
>> to set down and do it, plus I never really designed that many of them,
>> only
>> power transformers. What I wrote was the basics, but didn't get into any
>> formulae, etc, which I would have liked to have seen included. Any help
>> would be appreciated, not just by me, but our entire electrical and
>> electronics community as a whole, especially any students who read it. I
>> even found a link on Google, from a Russian university, who had their
>> students read it at one time.
>>
>> Thanks,
>>
>> Will
>>
>> *********** REPLY SEPARATOR  ***********
>>
>> On 6/27/2011 at 10:59 AM J. Forster wrote:
>>
>>>A good article, IMO.
>>>
>>>-John
>>>
>>>================
>>>
>>>
>>>> For any interested in the link for the Wikibooks article on transformer
>>>> design, the link is below.
>>>>
>>>> http://en.wikibooks.org/wiki/Electronics/Transformer_Design
>>>>
>>>> Best,
>>>>
>>>> Will
>>>>
>>>>
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-- 

Chris Albertson
Redondo Beach, California



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