Fw: Types of Ignitions

[William Shurvinton]

US patent 5,456,241 covers something that should do it. Or search USPTO for
Michael A Ward. He spends a lot of time thinking about new ways to light
your fire.

Basically if you use an IGBT as the switching element, you can turn off
before you have fully discharged the capacitor and give it another kick. SCR
based switches don't turn off until the voltage has dropped to zero, hence
the 1ms recharge that most CDI offer.

Would build one, but have waaaay too many projects on the go right now.

Bill
----- Original Message -----
From: Tom Sharpe <twsharpe at dmz2.mtco.com>
.
> >
> Right on, The extra sparks are so late that they do little except keep the
> plugs clean. Retard your spark 10 deg. and see what happens to your power.
> I'd like to see someone build a CD that would "ring" the coil (set up a
> high frequency AC current) for about .005 sec. (5 deg. @ 6000 rpm).
> Probably take a lot of power, expensive components, and eat up those
> platinum plugs in 10K miles, but, hey, nothing's free.  Tom
> PS I want guarantees that the fire is lit.
>
>
>
>
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