Driving Injectors

[Dale Ulan]

> 
> What is the best (or most often-used) FET transistors
> for driving 2 ohm fuel injectors?  I have used the Motorola
> injector driver chip in the past, but these are hard to get.

Use an MTP3055EL, clamp zener, and a big resistor.
The resistor is necessary. Otherwise, you'll roast the
injectors.
There's a National Semi chip that drives a bipolar transistor
(the older GM ECMs use this). I don't remember the number
offhand, but it's in the National Semi Linear 3 book, or in
'Special Functions'.

-Dale