In message <[email protected]>, dated Tue, 4 Nov 2014, Doug
Smith <[email protected]> writes:
Don't have a good explanation yet as I am hesitant to take apart one of
the supplies that is the worst offender as it is the supply for a
D-Link router I have. I am beginning to formulate possible mechanisms.
But from the point of view of equipment, supplies that do this should
not be used. I have been using a simple test setup (on a normal lab
bench, not a standards based setup) that would suffice for prescreening
supplies.
There is some sort of discharge happening and the delay could be the
time it takes for a discharge to form. I have been able to repeat the
results with ESD as the stimulus in three different labs using
different equipment.
Understood. I wonder if this effect may be involved in the power
supply/charger fires that seem to be increasing in number.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Quid faciamus nisi sit?
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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