RE: Kickback suppression in twin coils

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Richter, Rick by way of Terry Fritz <teslalist-at-qwest-dot-net>" <rick.richter-at-hp-dot-com>

A little more research solved the problem! It looks like you added an
extra '3' to the part number. The one I found at the IR website is
designated: IRGS14C40L and it seems to match the parameters you
specified.

Thanks again,

Rick

-----Original Message-----
From: Richter, Rick
Sent: Thursday, May 22, 2003 7:35 PM
To: 'Tesla list'
Subject: RE: Kickback suppression in twin coils


Thanks for the information!! However, is it possible that you entered
the part number incorrectly? Or, for that matter, could it be an
unannounced new product? I went to www.irf-dot-com,
www.internationalrectifier-dot-com, and even did a Google search on the part
number without any hits. Just to be sure, I cut the number directly from
the email and pasted it into each search field!

Could you check the number to see if it is correct? I certainly would be
very interested in such a part!

I'd still be interested to know anyone has researched the kickback
effects in twin tesla coils.

Oh, and BTW, I'd really be purchasing one of the transformers you've
been mentioning.

Rick



-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Thursday, May 22, 2003 6:43 PM
To: tesla-at-pupman-dot-com
Subject: Re: Kickback suppression in twin coils

Original poster: "Dr. Resonance by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <resonance-at-jvlnet-dot-com>


International Rectifier has developed a special IC designed especially
to
drive ignition coils and other devices that present unique kickback
problems.

Their new IC, designated IRGS143C40L incorporates special clamping
diodes
and is designed to operate / switch capacitive loads into inductive
coils.
It includes on-chip voltage clamps between both gate-emitter and also
gate-collector.

It can dissipate an amazing 54 watt continuous (125 w. max) and can
operate
in the 15-20 Ampere range with heatsinks.  It's available in the
standard
TO-220AB package.

It sounds perfect for your work and is much better than a standard 555
driver.  The 555 must be clamped external and the lead inductance can
cause
oscillator ring problems.

You can  download the datasheet from their website.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
  >
  >          I'm new to the list and I've got a question about running
twin
  > coils. I'm thinking primarily of driving ignition coils or flybacks,