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From: Joseph Legris
X-Mailer: Mozilla 4.77 [en]C-SYMPA (Win95; U)
Subject: Re: HELP WITH INDUCTION SETUP
Date: Fri, 15 Nov 2002 21:49:24 -0500
NNTP-Posting-Date: Fri, 15 Nov 2002 21:49:23 EST
Organization: Bell Sympatico
Gene De Guzman wrote:
> Dear Joseph,
> Many thanks to your suggestion.
> Could you let me know how I coulb make or to buy a precisely timed
> pulse controller?
> I will try to answer your questions to the best of my untechnical
> 1) Is the core saturating magnetically?
> ---> There is a very strong magnetism on the core whenever the switch
> is turned ON.
> 2) Are the resistances of the coils low enough?
> --->I use a 1 millimeter wire with a lot of turns and another 3
> millimeter with with fewer turns. The wires don't heat-up when I turn
> the switch on/of.
> Could you explain what you mean by:
> 12 Volts/55 Amps = 0.22 Ohms or less (unlikely).
> 1.2Volts/550 Amps = 0.0022 Ohms or less (forget it).
> A car ignition coil can induce 12,000 DC Volts with a very low current
> so if I use your formula ... 12,000 Volts / say 1 Amp = 1 Ohm ... this
> is a high resistance but the coils does not burn ... am I wrong?
> Please be gentle ... I really don't know much.
> 3) How are you measuring the pulsed voltages and currents?
> ---> I am using an oridinary Voltmeter and an Ampmeter. How much does
> an oscilloscope and a current probe cost and what size to I need?
> Does an oscilloscope work with DC?
> As I understand it, I need an oscilloscope to that I will know
> prescisely when to turn off the switch ... and this is when the
> current reaches its peak which the oscilloscope will display ... is
> this right?
> Thanks again.
Excuse the double post.
If you really want to build a high-powered pulse transformer you had
better find someone experienced in electronics who can supervise you
directly - it is much too complicated for a beginner.
What is the intended application? There may be a simpler route.
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