[Diy_efi] injector current-feedback driver

[Adam Wade]

--- Marcell Gal <cell at x-dsl.hu> wrote:

> Are there people using feedback-ed injector current
> limiting setups?

Someone is.  I would presume that a goodly number of
high-end aftermarket ECU manufacturers do.

http://www.ife.tugraz.at/datashts/nsc/h5062.pdf

I am not sure if this is readily available any more,
but this is a neat little chip.  Has a timer in case
low voltage prevents ever reaching peak current, and
has current sensing and switching built in.  A
separate injector driver board would allow the ECU to
be "modular" in much the same way that the megasquirt
appears to be; build an ECU with a TTL PWM output, and
then build a driver board that changes that PWM output
into a useful driving signal for your injectors.  Yes?

I'm definitely intersted in learning more about the
electronics behind driving an injector.  Seems they
are sort of odd beasts to drive, electrically...

=====
| Adam Wade                       1990 Kwak Zephyr 550 (Daphne) |
|   http://y42.photos.yahoo.com/bc/espresso_doppio/lst?.dir=/   |
| "It was like an emergency ward after a great catastrophe; it  |
|   didn't matter what race or class the victims belonged to.   |
|  They were all given the same miracle drug, which was coffee. |
|   The catastrophe in this case, of course, was that the sun   |
|     had come up again."                    -Kurt Vonnegut     |

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