Reply to "Weak DCS signals, Failed TIU Output Drivers, and Design Solutions devloped under collaboration between AGHR and MTH"

Adrian!OGR Forum Member

RWDeano posted:
Yes I have been following both, this thread, the tester thread(I have one on the way) and the TMCC Buffer, as I would like to have all the above protected and functioning. Just thought I had read something about fast trip protection.
Thanks again Deano

Hey,

It's not about "too much current" so fast breakers, or super fast breakers, or fuses won't do anything on this issue. The issue is the very very high di/dt voltage (inductive kickback) that's generated from current discontinuities the layout inductance, wiring inductance, and explicit signal transfromer inductance which zaps the existing TVS and eventually ACT244 drivers.

This fun thing describes it well.

9/3/1812:26 PM

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