555 EFI

[Bruce Plecan]

-----Original Message-----
From: Clarence L.Snyder <clare.snyder.on.ca at ibm.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, January 16, 1999 12:59 AM
Subject: Re: 555 EFI


snip

Try to find some of Forrest Mims III books, booklets are available from
Radio Shack
Bruce

>> >
>> What do I connect to pin 5, through what, to control this? On the info I
>> have, this is the BYPASS pin and is tied to ground through a small cap
>> to despike. How do I use it to control pulse width? What degree of
>> adjustment is possible from this pin?
>> 
>> Another question -
>> What percentage pulse width change would be required from the MAP or TPS
>> input? What percentage from  engine temperature, assuming these were the
>> only inputs you were going to use other than the trigger (tach sync)?
>
>The only other thing I have seen this pin used for is a very simple FM
>transmitter / signal generator where an audio signal is put onto an RF
>signal for tracing purposes. - FM radio then picks up the signal in an
>audible form. This is when used as astable.
>