circuit help needed

[Buchholz, Steven]

The simple solution is to use two voltage comparators, one for the idle and
the other for WOT.  I'm thinking that the more difficult switch to emulate
will be the idle swich, as these usually transition a few degrees from the
closed throttle stop.  WOT switches IME open quite some time before reaching
the other end of throttle travel.  Most comparators have an open-collector
output, which can easily be buffered to drive a relay if that is what you
need, or provide a logic level output ...

HTH!
Steve Buchholz
San Jose, CA (USA)

> -----Original Message-----
> 
> hi, I emailed the list earlier about my ford cfi throttle 
> position sensor.
> it appears that it does product a dc voltage to signify 
> precise throttle
> position. which is real nice, but the system I'm trying to 
> interface this to
> is expecting a switch closure at wot and idle.
> 
> does anyone have or know of a easy relay trigger system that 
> might work?,
> I'm stuck with this sensor, which mounts very nicely. the 
> other sensor from
> the bosch throttle body would take some engineering to fit, 
> as would some
> micro switches.
> 
> thanks Ted
> 
> 
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