555 EFI again...

[Bruce Plecan]

From: Walter Petermann <corsaro at brokersys.com>
Subject: Re: 555 EFI again...


>> >http://brokersys.com/~corsaro/wiring_diagrams/555fe.htm
>  It is for me..I haven't designed anything for a while and
>  enjoyed doing it. By the way, I have already made one correction:
>  The map was connected to the wrong side of the op-amp. 
>
>  I think so. The specs he and others gave me were 5v at
>  atmospheric pressure, decreasing voltage with increasing
 pressure and 40ma current draw at full boost.
>
>  The nice thing about the circuit (if it works) is that
>  only one op-amp is needed for each new function. It should
>  be easy to add engine temp, air temp etc.

If this converts voltage to PW, how would one stack Op-Amps 
together to add voltages?.  Or are we talking about something 
that would look like an audio mixer?.  Comments from the EE
challenged.
Bruce

 Maybe even an O2.
>  Also, you could put a shift register on the output and
>  have sequential injection!
>
>   Walter
>