[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Help! Peak-hold injector driver design



Hello,

  Dose anyone have a good design for driving peak-hold Fuel injectors?
Is there any chips out there made specifically to do this? From what I
understand
the design of the peak-hold injector is such that it has a low impedance
(1-3ohms)
and therefore draws many (~4) amps, but, you cannot run this injector at
large duty
cycles if you sustain the 4ish amps it will draw short-circuited. Instead,
(if I understand
this...) the goal of a peak-and-hold driver is to initially draw
full-current to open the injector,
but then use  a FAST PWM scheme, or some other method, to current-limit the
overall
injector drive current to 1/3 or less of the short-circuit current that the
injector would normally
draw. Do i understand this? or am I just  a silly confused hot-rodder?



   any help or suggestions would be very much appreciated.

  ---Lou

  lfaustini@atlantech.net

----- End of forwarded message from owner-gmecm@diy-efi.org -----
----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org