Re: 500 KV DC (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 22 Sep 2004 10:06:17 -0500
From: Bert Hickman <bert.hickman@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: 500 KV  DC (fwd)

Hi Colin,

OOPs - just noticed I neglected to add one more rectifier to the 
voltage doubler circuit - it SHOULD be:

      C1
      | |         |\ |
-----| |-----o---| .|----o-------- +
      | |     |   |/ |    |
              |           |
            -----       -----  C2
             /\         -----
            /__\          |
              |           |
              |           |
-------------o-----------o-------  -

-- Bert --

High Voltage list wrote:

> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Wed, 22 Sep 2004 09:26:34 -0400
> From: Colin Quinney <crquin@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: 500 KV  DC
> 
> Hi Chip !
> 
> I have on hand an old 250 KV  60 Hz  X-ray transformer. It was manufactured 
> with three windings connected in series and it  was designed to be run in 
> dielectric oil. I can remove the iron laminate core if necessary to run it 
> at higher frequency, but maximum output power is not a critical factor for 
> what I require,  and that is variable DC to 500 KV. Filtering not required.
> 
> I'm looking for ideas for best method of doubling to 500 KV while 
> minimizing complex solid state design. I have a 1 KV Variac, dozens of 20 
> KV diodes, enough for a full wave bridge if necessary. High power output is 
> not required.
> 
> Safety is top priority. Wire netting for Faraday cage has been purchased.
> 
> Suggestions welcomed  :-)
> 
> 
> Best Regards,
> Colin Quinney