[AMPS] Shunt regulated high voltage psu

[Radio WC6W]

On Sun, 27 Jan 2002 09:43:47 +0000 "Ian White, G3SEK" <G3SEK@ifwtech.com>
writes:

<snip>

> There are several downloadable articles at:
> http://www.ifwtech.com/g3sek/boards/tetrode/tetrode-3.htm
> MOSFETs are better than bipolars  for this application, because they 
> don't suffer from second breakdown under combinations of high  voltage 
> and high current. A single IRF840 will do the job, although the 
unregulated 
>650V input is higher than its breakdown voltage - you  should 
> reduce the input voltage if you can.
> 
> -- 
> 73 from Ian G3SEK          Editor, 'The VHF/UHF DX Book'

Hi Ian,
  The IRF840 should be fine in a properly designed shunt regulator at
350V, as the transistor should never see more than that voltage across it
-- discounting failures.

Good morning,
  Marv  WC6W










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