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| PC Power Supply Discussion Troubleshooting and discussion of computer power supplies |
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Thread Tools | Display Modes |
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#11
07-16-2012
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^That would be indeed a welcomed feature.
^^I see your point TT.
__________________
"Sometimes a cigar is just a cigar" - Unknown (but sometimes attributed to Sigmund Freud) 
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#12
07-16-2012
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This is a place where some tight UVP would be good.
Though, I could still see that annoying folks. Then again, the best way to get around something like that is to have some form of PSU diagnostic tool available; like Thermaltake's units with the S.P.T. indicator. Though, Thermaltake's solution only shows Overheated, 5vSB issue, or PG Signal issues. If you could implement possibly 5 LED's for UVP, OCP/OPP, OTP, OVP, & SCP triggers; then you could have tighter control without users getting frustrated. As they'd see that the UVP light triggered and the system shut down; then they could go read the manual and it would say "UVP triggers during periods of low AC Voltage Input. This protects your Power Supply from damage that could occur during a brown out." Like wise, you could just beef up the primary side, as this unit probably had a component die on the APFC stage. But we won't know unless Gabe shows/tells us.
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#13
07-16-2012
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Couldn't the PFC controller be engineered to provide this sort of protection?.. as in shut the unit down if the input voltage leaves the 108VAC - 242VAC area (or along those lines)?
__________________
"Sometimes a cigar is just a cigar" - Unknown (but sometimes attributed to Sigmund Freud)
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#14
07-16-2012
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Could implement OCP in the PFC circuit. Though that might hurt efficiency.
__________________
It's my PSU in a box! Ooo-ooh, My PSU in a box, baby!
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#15
07-16-2012
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Quote:
But you're looking at a 90vAC, not 105vAC.
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#16
07-16-2012
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The UVP point on primary side needs to be related to the load condition. e.g. shut down under 100V@full load and 90V@half load or so.
I don't like to see my computer shut down for a accidental V drop during 50w loading on a 500w unit. 
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#17
07-16-2012
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I'm not sure if the controller would let you do so.
I'd say 105vAC at full load on this unit. (Since that'd be 1050w AC / 840w DC, just so the numbers are rounded off evenly.) 90vAC at half load may be too low but I couldn't say for certain.
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