Voltage Drift
Voltage Drift
(OP)
Hello,
I have a switching power supply that distributes voltage to numerous loads. I run a 10 hour test to verify the stability of it.
It fails 75% of the time. Besides a possible short or noise in one of the loads, what other factors can I consider the cause of this voltage drift?
I have a switching power supply that distributes voltage to numerous loads. I run a 10 hour test to verify the stability of it.
It fails 75% of the time. Besides a possible short or noise in one of the loads, what other factors can I consider the cause of this voltage drift?





RE: Voltage Drift
What specifically do you mean "it fails"??
RE: Voltage Drift
Did it meet the spec before some event in the past?
TTFN
RE: Voltage Drift
Try extending the test to 30 or 40 hours. Once the failure rate is closer to 100%, then the way forward might become more clear.
The 25% is perhaps just a distraction. (Or maybe not...)
RE: Voltage Drift
I have a switching power supply that outputs loads at:
24VDC @ 12A failed
8VDC @ 3.22A passed
15VDC @ 4.03A failed
-15VDC @ 3.22A failed
8VDC @ 830mA passed
8VDC @ 840mA failed
Maximum peak deviation is approximately .4%.Any output that falls out of this range is considered out of spec and faulty.
RE: Voltage Drift
TTFN
RE: Voltage Drift
RE: Voltage Drift
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