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08-02-2013 07:55 AM
08-02-2013 07:55 AM
BladeSystem Power supply question
Ingbert had a customer question on power supply performance:
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I have a question about the reaction of a C7000 Powersupply, if the voltage slips for about 4 μs.
Can the powersupply compensate this?
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Reply from Chris:
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Do you mean input AC voltage?
If so, I believe that all modern switching power supplies will sustain their output for at least 1 ms upon the input power being removed. There is simply enough power stored in the internal componentry of the power supply to maintain the output power for a few milliseconds. This is 250 times longer than the 4 microsecond period you are concerned about.
However, your question seems to be a bit strange, as in practice it is nearly impossible in the industrial power infrastructure to suppress power for such a short period of 4 microseconds. Just the inductance of the wires will be enough to force the current to flow for longer period. In other words, 4 microsecond blackouts do not happen.
Perhaps I misunderstood your question.
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08-02-2013 07:58 AM
08-02-2013 07:58 AM
Re: BladeSystem Power supply question
Back from Ingbert:
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The customer wants to install a new UPS which is energy optimized. The supplier of this UPS states that if
There is a power outage the output of the UPS can have a 4 μs outage too and wants to know if this might give a problem to the C7000.
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