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Author Topic: How to connect external FET to stepper/p259??  (Read 8742 times)

Offline smurfinator

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How to connect external FET to stepper/p259??
« on: January 16, 2017, 03:43:23 pm »
Suggest sticky for this topic.  Is there a diagram somewhere showing how to drive an external FET for higher current duty than the stepper and p259 allow?  This is for safety with my ISV currently (pun!) on the stepper.  I am running full sequential V8 and have no extra FET.
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Audi ABZ 4.2 V8 in 1993 90 quattro
TTV 60-2 flywheel and cam sync
firmware: 1.2.20

Smurf blue (BMW Laguna Seca), hence the name!

Offline smurfinator

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Re: How to connect external FET to stepper/p259??
« Reply #1 on: January 16, 2017, 04:07:35 pm »
Or can I just put fets inside on ec18 pins 6 and 12? Still suggest sticky for others to build this hack :)
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Audi ABZ 4.2 V8 in 1993 90 quattro
TTV 60-2 flywheel and cam sync
firmware: 1.2.20

Smurf blue (BMW Laguna Seca), hence the name!

Offline wersch

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Re: How to connect external FET to stepper/p259??
« Reply #2 on: January 16, 2017, 07:17:11 pm »
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