On Sep 12, 9:49*pm, Grumpy The Mule wrote:
wrote :





Yeah, I was planning on using pretty much the whole input section to
the PC power supply. The one I am looking at I think I can cut out the
whole circuit with a coping saw and mount it on some standoffs. This
would put the rectifiers and caps on a seperate little chassis and I
wont have to shoehorn in the 'lytics on to the inverter board.

I was noticing that the schematic for the 120VAC uwave inverters is
pretty much the same as the 240VAC inverter. I was expecting mains
input to be different. What I was expecting was a voltage doubler on
the 120VAC board since the 240VAC board used a bridge. This would mean
that the inverter section is designed to run off of anything from
150VDC to 300VDC . I need to take a closer look at just what are the
differences in the 120 and 240 inverters.

Jimmie

Jimmie

Frankenstein style construction. *Hopefully you'll be tempted to
shout "IT'S ALIVE!" but without the arcs and sparks.

A 2:1 input range is a piece of cake for a flyback. *An 8:1
range isn't unheard of in commodity products. *Not being
strictly bounded by the transformer (coupled inductor) turns
ratio can be handy!

There need not be any differences in the power components.
The control parameters important to operation of the oven
might need adjustment though.

That said, optimization for each range could save a few coins.
Make a million ovens or two and it adds up.- Hide quoted text -

- Show quoted text -

I went through the parts list for each power supply and their are some
different part #s for the 120vac
compared to the 240vac unit and the wiring is a little different.

Grumpy, did you want a detailed schematic or did I already give you
one?
Send me an email and I will get one to you.

There are part#s for everything. Maybe you could order just the
transformer if you wanted.

Jimmie