VSS importance

[Bruce Plecan]

>From: T Hergen <thergen at svn.net>
>Subject: Re: VSS importance

Everything is running off a 7805 VR.  If I hook a v meter to the out
puts it reads 2.65v.
Cheers
Bruce

>These aren't the best of answers maybe some one can chime in, please..
>>The x2 or /2 is half the puzzle.  I'm don't know what the vss sensor
>>outputs or the ecm vss input expects.  Does anyone know what range of
voltages a vss sensor will produce?
>
>It's like a motor with a gear on the end, just a little A/C generator.
>As I recall they can light up a LED.  I think the words zero crossing
>was used.
>
> Does anyone know what the minimum AC
>>voltage swing is needed on the various vss inputs?
>
>The 730 type of ecm at 4000ppm is A/C. and the 2000ppm is
>a pulsed DC.
>>
>>These same questions will come up if a phase locked loop is used.
>>
>>Bruce, in your 555 thru a cap to vss experiment, was the 555 powered by
>>12v or 5v?
>
>Between my eyes, and lighting I'll have to look again in the am.
>There is a 78XX..
>Cheers
>Bruce
>>
>>Thanks,
>>Tom
>>
>>
>
>