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generate 1vAC pulse

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jmarkm

New Member
I have some limited electronics experience...I wish to create a 1vAC current from a 12 vDC supply. The power requirement is small. it is to create a control current to fool my car computer into thinking that the engine is turning.
Thanks
Mark
 

k7elp60

Active Member
What frequency of AC. Is it a sine wave, a square wave.....what kind of AC wave? Is the voltage RMS or peak to peak.
 

MikeMl

Well-Known Member
Most Helpful Member
...it is to create a control current to fool my car computer into thinking that the engine is turning.
Mark,

you might get some ideas by reading this entire thread.

Your requirement could be accomplished with just the oscillator part of this design. Reducing the voltage after you have the pulse generator is trivial...
 

jmarkm

New Member
i guess that I need a square wave of 1/2 to 1 v peak. Normally this is generated by small metal bars passing magnet and creating a pulse to show that flywheel is turning. Just need enough to tell computer that something is happening. Thanks
 

MikeMl

Well-Known Member
Most Helpful Member
Did you read the link? There are two different methods of producing varying frequency pulses which would emulate the speed pick-up from a distributor in the circuits I posted.
 
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