Groups > sci.electronics.design > #452775

Re: Make 2000V at 100uA

From	mike <ham789@netzero.net>
Newsgroups	sci.electronics.design
Subject	Re: Make 2000V at 100uA
Date	2017-03-20 13:27 -0700
Organization	A noiseless patient Spider
Message-ID	<oapdrv$5pn$1@dont-email.me> (permalink)
References	<YuqdndQnMeJxg1LFnZ2dnUU7-d3NnZ2d@giganews.com> <1LIzA.59309$u84.14944@fx35.iad> <BeqdnRenY7UtjU3FnZ2dnUU7-Vdh4p2d@giganews.com> <lJVzA.73525$ff2.54012@fx41.iad>

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On 3/20/2017 12:04 PM, bitrex wrote:
> On 03/20/2017 01:26 PM, Tim Wescott wrote:
>> On Sun, 19 Mar 2017 20:19:09 -0800, Robert Baer wrote:
>>
>>> Tim Wescott wrote:
>>>> Or more (volts that is).
>>>>
>>>> Any quick & dirty circuits that'll do this?  Something that self-limits
>>>> in current would be nice, but not necessary.  I want to test voltage
>>>> regulators.  Ideally it'd be battery powered, but that's not a
>>>> necessity.
>>>>
>>>> Just looking for a quickie one-off.
>>>>
>>>> Thanks.
>>>>
>>>    Steal the xfmr, cap and diode from a microwave oven; the maggie seems
>>> to get a regulated drive (but it also is the second diode in the DC
>>> scheme of things).
>>>    Or, a flyback xfmr in a joule thief configuration?
>>
>> I like the idea of something that's inherently low current.  500mA at
>> 2000V seems a lot scarier than 100uA at same.
>>
>
> Sure, if you decide to go the C-W route just do the calculations to use
> caps just large enough to provide the required 100uA output current
> without too severe a voltage drop, and if anything that draws more than
> a couple mA gets connected (ur hand) the calcs say that the output ends
> up crowbarred down into the dirt.
>
> Don't taze me, bro!
$10 on EBAY will get you a stun gun.
Point being that the high voltage stuff is done.  All you'd need to do is
design in some regulation.  Diode, cap, adjustable spark gap shunt 
regulator.

Thread

Make 2000V at 100uA Tim Wescott <seemywebsite@myfooter.really> - 2017-03-19 19:14 -0500
  Re: Make 2000V at 100uA John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-19 17:28 -0700
    Re: Make 2000V at 100uA Winfield Hill <hill@rowland.harvard.edu> - 2017-03-19 18:01 -0700
      Re: Make 2000V at 100uA bill.sloman@ieee.org - 2017-03-19 18:24 -0700
      Re: Make 2000V at 100uA Cursitor Doom <curd@notformail.com> - 2017-03-20 01:33 +0000
      Re: Make 2000V at 100uA John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-19 21:58 -0700
        Re: Make 2000V at 100uA pcdhobbs@gmail.com - 2017-03-20 04:35 -0700
          Re: Make 2000V at 100uA John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-20 09:17 -0700
      Re: Make 2000V at 100uA George Herold <gherold@teachspin.com> - 2017-03-20 06:18 -0700
        Re: Make 2000V at 100uA John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-20 09:31 -0700
          Re: Make 2000V at 100uA George Herold <gherold@teachspin.com> - 2017-03-20 09:50 -0700
            Re: Make 2000V at 100uA whit3rd <whit3rd@gmail.com> - 2017-03-20 16:10 -0700
              Re: Make 2000V at 100uA George Herold <gherold@teachspin.com> - 2017-03-20 17:35 -0700
                Re: Make 2000V at 100uA whit3rd <whit3rd@gmail.com> - 2017-03-20 22:50 -0700
                Re: Make 2000V at 100uA George Herold <gherold@teachspin.com> - 2017-03-21 11:54 -0700
                Re: Make 2000V at 100uA whit3rd <whit3rd@gmail.com> - 2017-03-21 16:20 -0700
          Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-20 13:57 -0400
            Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-20 14:00 -0400
        Re: Make 2000V at 100uA "Michael A. Terrell" <mike.terrell@earthlink.net> - 2017-03-23 21:26 -0400
  Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-19 23:41 -0400
  Re: Make 2000V at 100uA Robert Baer <robertbaer@localnet.com> - 2017-03-19 20:19 -0800
    Re: Make 2000V at 100uA Tim Wescott <seemywebsite@myfooter.really> - 2017-03-20 12:26 -0500
      Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-20 15:04 -0400
        Re: Make 2000V at 100uA mike <ham789@netzero.net> - 2017-03-20 13:27 -0700
          Re: Make 2000V at 100uA Tim Wescott <seemywebsite@myfooter.really> - 2017-03-20 17:17 -0500
            Re: Make 2000V at 100uA mike <ham789@netzero.net> - 2017-03-20 18:17 -0700
              Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 18:25 -0400
          Re: Make 2000V at 100uA Robert Baer <robertbaer@localnet.com> - 2017-03-21 00:04 -0800
  Re: Make 2000V at 100uA mike <ham789@netzero.net> - 2017-03-19 21:46 -0700
    Re: Make 2000V at 100uA whit3rd <whit3rd@gmail.com> - 2017-03-20 00:15 -0700
      Re: Make 2000V at 100uA mike <ham789@netzero.net> - 2017-03-20 10:03 -0700
  Re: Make 2000V at 100uA dagmargoodboat@yahoo.com - 2017-03-20 08:11 -0700
    Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-20 13:33 -0400
      Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-20 13:40 -0400
      Re: Make 2000V at 100uA dagmargoodboat@yahoo.com - 2017-03-21 12:47 -0700
        Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 16:49 -0400
          Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 17:30 -0400
            Re: Make 2000V at 100uA bill.sloman@ieee.org - 2017-03-21 21:43 -0700
          Re: Make 2000V at 100uA dagmargoodboat@yahoo.com - 2017-03-23 08:35 -0700
  Re: Make 2000V at 100uA oldschool@tubes.com - 2017-03-20 14:02 -0500
    Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-20 15:10 -0400
    Re: Make 2000V at 100uA Tim Wescott <seemywebsite@myfooter.really> - 2017-03-20 17:18 -0500
      Re: Make 2000V at 100uA Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-21 12:27 +0200
        Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 10:54 -0400
          Re: Make 2000V at 100uA Cursitor Doom <curd@notformail.com> - 2017-03-21 18:49 +0000
            Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 15:13 -0400
              Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 15:15 -0400
                Re: Make 2000V at 100uA dagmargoodboat@yahoo.com - 2017-03-21 12:29 -0700
                Re: Make 2000V at 100uA Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2017-03-21 22:37 +0200
                Re: Make 2000V at 100uA bitrex <bitrex@de.lete.earthlink.net> - 2017-03-21 17:00 -0400
              Re: Make 2000V at 100uA Julian Barnes <jb9889@notformail.com> - 2017-03-22 00:41 +0000
              Re: Make 2000V at 100uA krw@notreal.com - 2017-03-21 21:09 -0400
              Re: Make 2000V at 100uA Robert Baer <robertbaer@localnet.com> - 2017-03-21 22:51 -0800
  Re: Make 2000V at 100uA Jasen Betts <jasen@xnet.co.nz> - 2017-03-20 19:03 +0000
  Re: Make 2000V at 100uA Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-20 13:49 -0700
  Re: Make 2000V at 100uA o pere o <me@somewhere.net> - 2017-03-21 12:04 +0100

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