Re: Predictive failures

Don Y wrote:

Is there a general rule of thumb for signalling the likelihood of
an "imminent" (for some value of "imminent") hardware failure?
>
I suspect most would involve *relative* changes that would be
suggestive of changing conditions in the components (and not
directly related to environmental influences).
>
So, perhaps, a good strategy is to just "watch" everything and
notice the sorts of changes you "typically" encounter in the hope
that something of greater magnitude would be a harbinger...

A singular speculative spitball - the capacitive marker:

    In-situ Prognostic Method of Power MOSFET Based on Miller Effect

    ... This paper presents a new in-situ prognosis method for
    MOSFET based on miller effect. According to the theory
    analysis, simulation and experiment results, the miller
    platform voltage is identified as a new degradation
    precursor ...

    (10.1109/PHM.2017.8079139)

Danke,

--
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.