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Re: 5 to 10kV rated gate transformers

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From	Winfield Hill <hill@rowland.harvard.edu>
Newsgroups	sci.electronics.design
Subject	Re: 5 to 10kV rated gate transformers
Date	2 Jun 2017 14:02:05 -0700
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John Larkin wrote...
> Joerg wrote:
>> John Larkin wrote:
>>>
>>> I like the idea of drum cores or pot cores on opposite
>>> sides of a PCB, but nobody else seems interested.
>>> Imagine just a couple of cheap pick-and-place
>>> inductors doing the job.
>>
>> AFAIK you can't buy an open half pot core as a
>> standard part.  I'd be all ears if you could.
>
> They come in pairs, and the circuit would need two.
> Using pot core halves on opposite sides of the board
> does require terminating windings manually, and
> securing the cores to the board somehow. 

 Yes, but interesting idea, I like it.  Epoxy.

> Some standard surface-mount inductors would be
> a lot better for production.
>
>> Upright unshielded rod inductors, yes, but their
>> spew around EMI to no end.  They are like a dirt
>> bike with the muffler sawed off.

 Eww!

> I designed one electric meter for a giant northeast
> utility. It had to be read out without line power
> (this was to go into a country where the power was
> erratic) so the readout wand used magnetic coupling
> for data and to briefly power up the meter. I used
> flat rod-type inductors on both ends, resonated,
> which gave pretty good coupling when they were
> parallel, maybe an inch apart.

 What kind of power-coupling did you get?

 "flat rod-type" what does that mean?  I couldn't
 find available ferrite shapes for the HV design
 concepts I played with.  "bar and frame" sounded
 good, but I couldn't find inventory given that
 CCFL went out of flavor.  Not even on Alibaba.


-- 
 Thanks,
    - Win

Thread

5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-05-17 14:33 -0700
  Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-05-17 15:09 -0700
    Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-05-31 07:39 -0700
  Re: 5 to 10kV rated gate transformers "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-05-18 01:21 -0500
    Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-05-31 07:30 -0700
  Re: 5 to 10kV rated gate transformers oldschool@tubes.com - 2017-05-18 08:34 -0400
    Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-05-18 10:07 -0700
      Re: 5 to 10kV rated gate transformers Klaus Kragelund <klauskvik@hotmail.com> - 2017-05-18 10:53 -0700
        Re: 5 to 10kV rated gate transformers speff <spehro@gmail.com> - 2017-05-18 12:59 -0700
        Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-05-31 22:03 +0200
          Re: 5 to 10kV rated gate transformers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-05-31 13:22 -0700
            Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-05-31 23:04 +0200
              Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-05-31 15:57 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 07:47 +0000
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-01 07:13 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 14:28 +0000
                Re: 5 to 10kV rated gate transformers Klaus Kragelund <klauskvik@hotmail.com> - 2017-06-01 07:42 -0700
                Re: 5 to 10kV rated gate transformers Klaus Kragelund <klauskvik@hotmail.com> - 2017-06-01 07:43 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-01 08:47 -0700
                Re: 5 to 10kV rated gate transformers klaus.kragelund@gmail.com - 2017-06-02 01:25 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-02 07:59 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 09:21 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-02 09:32 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 10:08 -0700
                Re: 5 to 10kV rated gate transformers Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-06-02 10:21 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 10:46 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-02 17:54 +0000
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 11:02 -0700
                Re: 5 to 10kV rated gate transformers Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> - 2017-06-02 11:05 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-02 18:16 +0000
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 11:32 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 12:15 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 12:43 -0700
                Re: 5 to 10kV rated gate transformers klaus.kragelund@gmail.com - 2017-06-02 10:04 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 10:54 -0700
                Re: 5 to 10kV rated gate transformers "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-06-02 17:35 -0500
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 15:56 -0700
                Re: 5 to 10kV rated gate transformers upsidedown@downunder.com - 2017-06-01 17:44 +0300
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 14:57 +0000
                Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-06-01 08:05 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-01 08:45 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 16:07 +0000
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 11:08 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 11:37 -0700
                Re: 5 to 10kV rated gate transformers Klaus Kragelund <klauskvik@hotmail.com> - 2017-06-01 07:33 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-01 14:56 +0000
        Re: 5 to 10kV rated gate transformers upsidedown@downunder.com - 2017-06-01 12:08 +0300
          Re: 5 to 10kV rated gate transformers habib.bouaziz@gmail.com - 2017-06-01 04:12 -0700
          Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-01 07:15 -0700
      Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-18 20:08 +0000
      Re: 5 to 10kV rated gate transformers upsidedown@downunder.com - 2017-05-19 00:03 +0300
      Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-05-18 14:12 -0700
  Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-05-31 10:48 -0700
  Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-05-31 21:50 +0200
    Re: 5 to 10kV rated gate transformers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-05-31 12:57 -0700
      Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-05-31 22:10 +0200
        Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-01 13:09 -0700
          Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-06-01 23:17 +0200
            Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-01 14:35 -0700
              Re: 5 to 10kV rated gate transformers habib.bouaziz@gmail.com - 2017-06-02 07:01 -0700
                Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-06-02 08:44 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 09:19 -0700
                Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-06-02 11:18 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highlandtechnology.com> - 2017-06-02 09:28 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 09:35 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 11:16 -0700
                Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-06-02 14:02 -0700
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 14:36 -0700
                Re: 5 to 10kV rated gate transformers John Larkin <jjlarkin@highland_snip_technology.com> - 2017-06-02 16:08 -0700
                Re: 5 to 10kV rated gate transformers Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-06-02 16:46 +0000
                Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-06-02 23:13 +0200
                Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 14:39 -0700
                Re: 5 to 10kV rated gate transformers habib <h.bouazizviallet@free.fr> - 2017-06-03 09:47 +0200
                Re: 5 to 10kV rated gate transformers klaus.kragelund@gmail.com - 2017-06-03 04:28 -0700
                Re: 5 to 10kV rated gate transformers Jasen Betts <jasen@xnet.co.nz> - 2017-06-07 20:03 +0000
                Re: 5 to 10kV rated gate transformers Winfield Hill <hill@rowland.harvard.edu> - 2017-06-08 10:12 -0700
                Re: 5 to 10kV rated gate transformers dagmargoodboat@yahoo.com - 2017-07-13 07:35 -0700
  Re: 5 to 10kV rated gate transformers Terry <respect__privacy@hotmail.com> - 2017-06-02 06:06 -0700
    Re: 5 to 10kV rated gate transformers Joerg <news@analogconsultants.com> - 2017-06-02 09:27 -0700
  Re: 5 to 10kV rated gate transformers bloggs.fredbloggs.fred@gmail.com - 2017-07-13 07:43 -0700

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