Not sure how to do that or if it's even necessary. Do you mind sharing how?
Here's what I'm kind of working with right now.
http://tinyurl.com/l6rq8y6
My goal is to practice and try to figure out the relationship between
transient peaks (current & voltage at the die & at the Source) of a hot
swap event and the frequency domain Z of the PDN of a host and module. It'd
be interesting to me if there are even some analytical equations.
On Wed, May 10, 2017 at 6:54 PM, Aubrey Sparkman <
asparky@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:
Did you consider modeling the switch like a mechanical switch without a
denouncing circuit?
Aubrey
Sent from my iPhone
On May 9, 2017, at 5:27 PM, SI Guy <silistguy@xxxxxxxxx> wrote:a
Hi all,
Wondering if anyone has any good tips on modeling the transient event of
pluggable module. The circuit I've made so far composes of a 3.3V DCSource
feeding a simplified PDN which feeds the load. Between the load and theopen.
PDN, I have a simple switch, which at the start of the transient, is
I setup the simulation so that the switch closes a long time after thePDN
caps and components have charged and stabilized. The switch closes, and*just
there flows the inrush current. This is what I'm trying to simulate.
This may be a silly question but my thoughts are with the switch. In the
simulation, I believe the switch is an instantaneous step, which imo
doesn't seem real... It may be just fine but my gut tells me I might be
missing something. Elaborating, my gut also says that there should be a
certain rise time of the "plug" event but what could it be? Not sure.
brainstorming here*on
This whole problem is important to me because the inrush current depends
the dV/dt so my results may be coming in higher than they really shouldbe,
given that I am in fact correct about there being something missing inthe
model. I'm tempted to start playing with components, but I'm afraid of a)
not knowing exactly what I'm doing and b) creating something that will
interfere with the original circuit.
I'd appreciate any help on this one.
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