Min. injector off time

bruce plecan nacelp at bright.net
Fri Feb 6 20:38:04 GMT 1998


ref: John Dammeyer:
Then what about appling a pre current after the injector
turns off so that at the next on signal the is some current
and then there is less time needed for the full flow to 
take place??..
    One thing I'd played with some was a series of
three 555's and three FETs Two turning on at the
same time, one was across a resistor (current
limiter?), then after a period of time the one with
no resistor would open, so the only one on had 
the resistor 10 ohms, then would come the off
signal after a pause the thrird FETwould close 
inline with a 30 ohm resistor.  As the two turned 
on at the next injector pulse the first would turn
off, when the one with no resistor did.  But, I
had to quit not having a scope, and it got too
quick to "read" with LEDs.
  Or at high speed not enough time is available
for doing this, but by the same token wouldn't
it help to more accurattely control large
injectors at idle.
Bruce    Martha Stewart is supposedly
        holding out to get BClinton,Reno
        Nader,Claybrook,Starr, and
        Ginsburg before saying yes
        Hillary has supposedly said No



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