hi,
I must say again, I'm not blaming lasorb's operation, I know this is a manipulation/construction fault from me
I was really curious of the reason the diodes are dead where the short-circuited lasorbs should have absorbed the surge by the short-circuit itself (if you follow me)
the lasorbs would surely have functioned at the start of the surge, where initial voltage has been rather huge (bad switching power supply discharging in a wrong path), then voltage would have dropped in an unsafe region for them with currents high enough to fry them in the remaining time of the surge (I don't know if this is realistic, it is just an assumption)
the diode blowout took place, for what I understand, somewhere between the moment the lasorbs began not to be able to sustain the discharge anymore and the time internal meltdown occurred
perhaps they would have survived if I had quickly powered off the supply instead of literally punching the psu away to break inopinous contact (really lasted less than one second, somewhere like 600ms or 700ms counting the time my brain reacted, impulse through my nerves actuated my arm and contact was broken... in that kind of moment you are not able to tell even if you feel you reacted in less than one second)
if pangolin in interested in investigating the internal meltdown process, I can ship the lasorbs, but I don't think there is any interest there... better feed them with rectified mains directly
for the flexmods now, they are blown, since the surge traveled from V+ to ground through all the circuit... initial impulse will have killed the opamp, then the rest will have killed the transistor and laser diode
sad thing, but no I have experienced that, every diode apparatus I'll design will be fully isolated and boxed... no question to play with bare apparatuses anymore
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Originally Posted by shrad
