pulse and hold

[kleenair at ix.netcom.com]

Charles Napier wrote:
> 
> Hi,
> 
> I was wondering if anyone out there knows how to build a pulse and hold
> circuit for a chevrolet syle fuel injector?
> 
> Thanks in advance
> 
> Charlie

Hi Charlie,  

You can build it yourself, or you can buy the chip.  The driver is 
available from Cherry Semiconductors (CS453), Motorolla, and SGS (and 
probably others).  It has a ground, 5V signal input, 12 V in, injector 
coil- and injector coil+.

If you want to build your own driver instead of buying the chip (I can't 
see why other than for fun), write back and I'll find the circuit 
schematic.  Us non-electronics guys can't remember these things off the 
top of our heads!

Best Regards,
Mazda Ebrahimi