 EE question...D-Jet related |
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| Mueller |
 Dec 9 2004, 03:07 PM
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#1
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914 Freak!  Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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What I want to do is have 1 12vdc square wave input, with a "splitter" that will alternate between 2 outputs, I want to do this electronically, and not with a Hall type sensor going high or low to reset
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| bondo |
Dec 9 2004, 04:59 PM
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
I *THINK* he is trying to modify a basic tach signal to feed to the djet computer so he can run a non-stock distributor, or something like that. That would mean the frequency would vary from about 15hz to about 100hz. The issue of dwell is probably important, the ECU may not like it if one signal was always on, and just alternating. Pulling it off would require an intimate knowledge of the djet ECU. I don't even know what voltage the trigger points are switching. If dwell is important, then it could get complicated really fast. The on time would have to be adjusted based on frequency, which can change. I agree, more info is needed (IMG:style_emoticons/default/smile.gif)
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Posts in this topic
Mueller EE question...D-Jet related Dec 9 2004, 03:07 PM
Root_Werks I thought I knew the D-jet system pretty well, wha... Dec 9 2004, 03:53 PM lapuwali You trying to simulate trigger points? Sounds lik... Dec 9 2004, 04:02 PM bondo http://www.fairchildsemi.com/pf/MM/MM74C374.html
... Dec 9 2004, 04:37 PM davep This thread is useless without more data.
A squar... Dec 9 2004, 04:48 PM Mueller yes to a bunch of the questions :)
trying to elim... Dec 9 2004, 05:11 PM McMark I think there is a small amount of time when both ... Dec 9 2004, 06:19 PM lapuwali pbanders <... Dec 9 2004, 08:17 PM lapuwali QUOTE
davep The trigger points create a fairly short pulse. Sh... Dec 9 2004, 10:02 PM bondo Now that I think about it, the two trigger points ... Dec 9 2004, 10:49 PM bondo I know you wanted to avoid a hall type sensor, but... Dec 9 2004, 10:53 PM vsg914 Jeff Bowlsby The trigger points only tell the alternating pairs... Dec 9 2004, 10:56 PM bondo vsg914 Royce, I try not to think why. It just confuses me... Dec 9 2004, 11:05 PM Mueller James is correct...Mallory Unilite distributor, ha... Dec 9 2004, 11:36 PM scott thacher why not just put a pick up on the fly wheel to tri... Dec 9 2004, 11:59 PM McMark After thinking about this for awhile, I'll hav... Dec 10 2004, 01:35 AM DNHunt Mike
It looks to me like you need to find the rig... Dec 10 2004, 07:57 AM scott thacher mikerose Hi Mike, This is were I say :finger2: :finger2: ... Dec 10 2004, 10:05 AM McMark |
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