These special transformers need the magnetic bypass because a magnetron looks
(as a load) like a Z diode.
So they are powered, more or less, with a constant current source rather than a
constant voltage source.
In other words, the "generator" (transformer) must have a large source
impedance, and that's what the magnetic bypass in the 'former does.
Cheers,
Wolf .
----- original Nachricht --------
Betreff: Re: LF: Microwave oven transformers
Gesendet: Mi 15 Jul 2009 15:23:54 CEST
Von: "Ken"<[email protected]>
> Hi.
> Not sure what they do, this was info from the person who sold them to me, he
>
> seemed to know a lot about themand using them in PSUs. Maybe someone in this
>
> forum can write a short explanation for us.
>
> Ken
>
> 73deM0KHW
>
> ----- Original Message -----
> From: "Alberto di Bene" <[email protected]>
> To: <[email protected]>
> Sent: Wednesday, July 15, 2009 2:08 PM
> Subject: Re: LF: Microwave oven transformers
>
>
> > Ken wrote:
> >
> >> I was informed that as they stand the voltage regulation is poor, to
> >> improve this the 'Core Shunts' should be removed, (these are laminations
>
> >> between the two stacks), removal of these 'shunts' also has the effect of
>
> >> considerably increasing the magnetisation current.
> >
> > Just out of curiosity, what is the purpose of those magnetic shunts when
> > the
> > microwave oven transformers are used for their intended application ?
> >
> > 73 Alberto I2PHD
> >
> >
>
>
>
--- original Nachricht Ende ----
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