peak and hold fuel injector driver

[arniepj]

Here's a link that might be of interest,its not a pic but has schematics and components.
http://www.bgsoflex.com/megasquirt.html

[Macgman2000]

There are other mcu's that you can use to do the precision timing. An SX chip (50 MIPS) bit banging with an interrupt can be used in conjunction with a PIC UART to update and control the SX . I am sure you have timing position sensors, feed those into the SX to trigger the next set of pulses. I have a brushless 3-Phase motor made up of the above mentioned, my motor spins at 30,000 rpm (variable speed) using zero crossing comparators for feedback.


Nick