Paul,

 Go to www.ahv.com.  They are manufactureres / distributors of potted
high voltage modules.
 They have several varieties, and I'm sure there will be one that you
can use.  They are easy
 to use too.  You put into the input of the module a DC voltage between
say 0 and 12 volts.
 And you get out from 0 to say 5000 volts.  We used these in a
development kit for a product=20
 a number of years ago, and they work very well.  Not real cheap, but
very reliable and predictable.
 Check them out.  It may save you some time and trouble.


 Regards,

 Jim

> -------- Original Message --------
> Subject: [EE] Very High Voltage DC Step-Up (Paul Haggard)
> From: Paul Haggard <paulhaggard@gmail.com>
> Date: Wed, February 02, 2011 7:33 am
> To: piclist@mit.edu
>=20
>=20
> I'm researching a project right now that requires a step-up converter for=
 DC
> ~3v to DC 1kV and the load consumes about 1mW.  I'm a mechanical engineer
> with limited knowledge about EE and microcontrollers, but I've never deal=
t
> with a step up converter before.  I know that this converter is (somehow)
> possible to build because my research shows that this has been done, but =
I
> do not know if a flyback transformer or switching transistor would be abl=
e
> to accomplish this without significant power loss.  The intended power
> source is a pair of AA alkaline batteries.  I have never dealt with such
> high voltage potentials before and I'm wary to being any testing before I
> come up with a strict safety guidelines and a sure way to keep the curren=
t
> in the nanoamp range.  If anyone can suggest potential resources for
> obtaining any relevant information, I'd be glad to do more reading; I sim=
ply
> don't know where to start yet.  Thanks!  -Paul
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