AIC

Jan Wännman janne at navigate.se
Fri Jul 2 11:29:07 GMT 1999


Hi

The V/F converter does not usually change the pulswidth so the duyt cycle is normally
50 % , you probobly have to involve PWM (Pulse Width Modulator)
instead of an V/F..

/ Janne

>
>
> ------------------------------
>
> Date: Thu, 01 Jul 1999 22:02:21 -0400
> From: Joseph Franz Obernberger <joelori at earthlink.net>
> Subject: AIC
>
> Hi!
>         This is my first post.  I was looking through the
> archives about additional injector controllers, since I was curious about
> building one for my 1991 MR2 Turbo.  I was thinking about using a couple
> LM1949 chips from National Semiconductor.  These neato little guys take
> a duty cycle signal and drive an injector (using a trans ofcoarse).  What
> do anyone
> thinking about using a voltage to frequency converter to convert the boost
> signal from a pressure sensor to a freq. that the LM1949 could use.  As boost
> increases the duty cycle would increase and hence more fuel squirted.
> Thughts?  Is this how a V-F converter works?
> Thanks!
>                                                 JoeO
>
> ------------------------------





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