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Re: LF: A transductor for power regulation?

To: [email protected]
Subject: Re: LF: A transductor for power regulation?
From: DK7FC <[email protected]>
Date: Wed, 19 Apr 2017 14:41:35 +0200
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Hi Markus,

Am 19.04.2017 12:41, schrieb Markus Vester:
Hi Stefan,

I think you'd have to do it the other way round, i.e. place the saturable reactor in series with the load.

Without DC, the reactor will present high impedance, minimizing RF and supply current. You could use a small parallel C to tune out the large inductance.
Yes, right, that is what Andy means with tank circuit i what i mean with series resonance circuit :-)

But see that image: https://de.wikipedia.org/wiki/Datei:Kernanordnung_Transdunktor.jpg How should it work? I tried that circuit too, the results are similar, as expected.

What about the circuit from my attachment? The windings labeled with DC and switched anti-series, so that the AC voltage componsates. The AC output winding is switched in series, so that the voltage doubles. When the two other legs are saturated there is still a magnetic conductive leg in the center, like a rod. This could still provide enough L for the primary coil. The DC H fields compensate in the center leg. Could work, right?
A saturated leg acts as not present, not like short cut. Or we can see it as a DC current steerable air gap :-)
I'll try that in the evening...

73, Stefan

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