Wanted: Information on the Motorola MC3484 series FI driver

[Mazda Ebrahimi]

John Faubion wrote:
> 
> > your every day Honda or Kawasaki motorcycle?  If you try to read your
> > tach signal from one of the coils of your bike, you end up reading only
> > half of the RPM's!  I figure one must probably take it off the crank
> 
> Hmmm, why not take that reading and double it?
> 
> John Faubion
> jfaubion at beaches.net

I'm jumping in the middle of this (haven't tracked this specific 
conversation), but if you are trying to read RPM from coil signals on a 
two coil system, another way is to use two diodes to connect the two 
signals together.  If you put the diodes in right, the resulting signal 
is the combination of the signals to each coil and the output should be 
your desired signal.  

Best Regards, Mazda