[Diy_efi] 555 Timer controlled EFI

[ScottyGrover at aol.com]

In a message dated 1/21/06 7:13:58 A.M. Pacific Standard Time,  
kml_daniel at yahoo.com writes:

Hi 
The 555 timer could be used as frequency to voltage converter i   could send 
you a schematic of it, if you need 
Kamal Daniel




The F-to-V converter was my reply to the person wanting to use the  
Mitsubishi MAF device. I am using a Datsun Flap-type AFM which has an antilog  
CFM-to-Voltage curve; I am applying this to pin 5 of a 555 to linearize the  curve.  
Then processing this signal for Intake air temp. and engine  (cylinder heat) 
temp.; then passing this through a National Semi. A/D device;  hen with further 
processing, this is applied to the input of a programmable  8-bit counter 
which, through rotary counters, gates, and power transistors,  feeds the injectors.
Scotty
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.diy-efi.org/pipermail/diy_efi/attachments/20060121/b86076c5/attachment.html