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Re: coil running of car battery(s)?

Original poster: "Bob (R.A.) Jones" <a1accounting@xxxxxxxxxxxxx>

Hi Derek,

I was curious about the circuit so I checked it out. I was initially
concerned because it has no snubber across the FET.  So I checked the data
sheet out for the device. I was impressed by its large safe operating area
and 0.5J single pulse avalanche energy capability. Truly a transistor that's
hard to kill. (but not impossible)


----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, January 24, 2005 7:01 AM
Subject: RE: coil running of car battery(s)?

> Original poster: "Derek Woodroffe" <tesla@xxxxxxxxxxxxxxx> > > >Do you wave a drawing of the driver circuit for ickle tess? this is exactly > what I was thinking of and I > >beleve that it is exactly what is needed.I don't mind using someone elses > brain work. I am just glad that my > >idea works even though I wasn't the first one to think of it! ;-) > > I don't have a circuit diagram for that coil drawn up but basically the > ignition coil driver(s) are very simple ones like this > http://www.okay.dyndns.org/okhp/electro/igncoildrv/ > > The output of each ignition coil is then rectified by a string of 4 x by8406 > diodes directly into the primary capacitance, then the usual spark gap, > primary, secondary and topload in a classic TC. > > Cheers > Derek > > >