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[DPRG] Shocking

Subject: [DPRG] Shocking
From: Kipton Moravec (SPEC Manufacturing) kip.moravec at specmanufacturing.com
Date: Thu May 11 09:01:12 CDT 2006

The simplest way is to alternate the current across a transformer, and have
a few windings on the primary side, and a lot of windings on the secondary
shock side. (Step up transformer.)

Kip
  -----Original Message-----
  From: dprglist-bounces at dprg.org [mailto:dprglist-bounces at dprg.org]On
Behalf Of Pay_the_Piper
  Sent: Wednesday, May 10, 2006 7:40 PM
  To: Dennis Draheim; kip at kdream.com
  Cc: hutchison_effect at yahoogroups.com; dprglist
  Subject: Re: [DPRG] Shocking


  How do tasers jump from 6 or 9 volts to 100,000+?

  PtP
    ----- Original Message -----
    From: Dennis Draheim
    To: kip at kdream.com
    Cc: dprglist
    Sent: Wednesday, May 10, 2006 5:26 PM
    Subject: Re: [DPRG] Shocking


    I would respectfully say that they don't know what they're talking
about.  It's not the voltage, it's the amperage that must be limited to
prevent injury.

    I have owned a shock collar for a dog.  When it activates, a spark will
arc at least a quarter inch from its terminals.  There is no way that a 2-6v
charge could ionize the air to create such a spark.  While I haven't
measured it, I would guess that the voltage is at least 500-1000v.

    I also have played with fencing transformers (I grew up on a farm -- I
used one as the primary stage of a Tesla coil once).  Their output voltage
is in the 1000-4000v range.  I believe their frequency is the same as that
of the power line, that is, 60Hz.

    Tesla coils avoid injury by having a very high frequency and very low
current.  If you take the frequency up into the radio range (~50Khz or
better), then the current travels over the surface of the skin instead of
penetrating it.  I had a Tesla coil that generated 80000+ volts, and I could
hold a wrench in my hand and let the Tesla coil hit it with an 8" spark
without sustaining injury.  (Without the wrench, I would end up with a burn
where the spark touched my skin, more from the heat of the ionized air than
the current.)

    Dennis


    On 5/10/06, Kipton Moravec <kip at kdream.com> wrote:
      I have a project where I have to incorporate a shocking system into a
      dog collar for training. (Long story)

      I have been doing some reading and one person says that the voltage
      should be between 2V and 6V! And that 6V is too high for a horse!

      I know I do not get a shock from a 9V battery (except when I put my
      tongue on it) or even a 12V car battery, and I have not gotten one
      working with 24V either.

      I have gotten one from the ringer of a telephone which I believe is
48V.
      And of course good old 120VAC.

      I was looking at shocking system (like electric fence) and they say
      1000V or 2000V or even 20,000V All are pulsing at 3 to 30 times per
      second.

      Can someone explain why someone would say 2-6V is what is needed?

      Kip
      --
      Kipton Moravec <kip at kdream.com>

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    --
    Dennis


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