On Sep 17, 7:59*pm, Grumpy The Mule wrote:
Howdy,

I found the URL for Grossner's book online.http://tinyurl.com/3z7mxv

It seems to me that using the inverter oven transformer
and IGBT with a flyback controller like UC3842 might work.

Just a straight enough, hard-switched, flyback with single
ended output. *You'd "only" get 1.5-2KV out less output power
maybe one half to three quarters as much... but that's not bad.

Mmm! *Old UPS's have lots of good parts in them, especially
the ones with big 60Hz transformers and big heatsinks. *Chuck
them into the trunk of your automobile.



My big problem at the moment is designinging a transformer. after much
reading in the last couple of days I am begining to think it is not
the big deal I thought it was. Since I am not trying to build 50k
units I dont have to use the cheapest thing I can get by with and can
overdesign a bit. I can see that just a few cores may take care of all
of my needs. Oh well its back to work so it will be a few days before
i get to piddle with this anymore. One of my jobs this week is to go
through all the old UPSs we have in the store room and find out which
ones are good and chunk the rest.

Jimmie- Hide quoted text -

- Show quoted text -



I was reading up on push-pull topology of switching power supplies
and see that they have problems with flux imbalance. I used to work on
some power supplies that were push pull when I was in the USAF and the
driver transistors were always failing, now I know why. I see that
this isnt as much of a problem for FETs, How about IGBTs.


Jimmie