On Mon, 1 Mar 2010, [iso-8859-1] Stefan SchДfer wrote:
>
> What i wanted to use as the PA is a prototype of a SMPS that was designed to
> operate at abt 50kHz. At 9kHz the ferrite core was already driven in
> saturation. By varying the driving f i found, where the saturation occurs.
> Then i have known how many primary turns i have to spend at 9kHz. After
> applying the new windings everything was right. But the time i had was gone
> and the wind was already to strong. So i told Markus to inform you...
>
> Now playing/increasing with the number of output windings of the SMPS
> transformer i applied the output voltage by a ordinary loudspeaker cable
> to the primary air coil that is inductive coupled to the HV coil. I got
> 1,6kV rms by applying 60W at the 12V DC input, really not much :-( But
> anyway it will be suitable for a first test if a apply 6dB more power or
> so.
Dear Stefan 3.2 kV (6 dB of 1.6 kV) is too low voltage. Expectations was
20 kV before. Is it any typo?
Regards,
Alexander
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