Electronic Ignition

[Bruce Bowling]

~ Might be easiest to try to find a datasheet for a "High
~ Energy Ignition Circuit" such as the Motorola MC3334P. (The
~ datasheet note "designed to serve the aftermarket Delco five
~ terminal ignition applications").  Hmm, not sure if that device
~ is being built anymore (it is listed in my '88 edition of the
~ Motorola Linear and Interface databook).
~ 
~ Tom Walter
~ Austin, TX.
~ 
~ 

I just "discovered" the National chip LM1815, which is an adaptive
reluctance amplifier.  The neat thing about this chip is it has
different triggering modes, one of which is the adaptive mode 
which requires the positive input spike to be at least 80% of
the preceeding pulse, in order to reduce fale triggerings.
The chip produces a pulse on zero-crossing (positive to negative)
and has an on-board triggered one-shot.  They cost around $3.50
and looks like it is available.

- Bruce

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               Bruce A. Bowling
  Staff Scientist - Instrumentation and Controls
 The Continuous Electron Beam Accelerator Facility
    12000 Jefferson Ave - Newport News, VA 23602
                 (804) 249-7240
                bowling at cebaf.gov  
        http://devserve.cebaf.gov/~bowling
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