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Talk:Power supply unit (computer)

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This is an old revision of this page, as edited by Hans Haase (talk | contribs) at 07:59, 3 December 2018 (→Protections). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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Label

Example ATX power supply label
AC Input 100–240 Vac — 10–5A 50–60Hz
DC Output +3.3V +5V +12V1 +12V2 +12V3 +12V4 −12V +5Vsb
Max Output Current 36A
(118.8 W) 		30A
(150 W) 		18A
(216 W) 		18A
(216 W) 		18A
(216 W) 		18A
(216 W) 		0.5A
(6 W) 		3.0A
(15 W)
Max Combined Power 155W 680W 20W
Total Power 700W

The link to http://www.hardwaresecrets.com/article/534 in the external links section is now dead. NotYourFathersOldsmobile (talk) 06:53, 9 December 2017 (UTC)[reply]

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A Tear Down of PSU Transformers and Chokes

Basics of the main transformer and chokes are missing in the article. --Hans Haase (有问题吗) 21:36, 24 November 2018 (UTC)[reply]

Protections

Hello. This article completely lacks info about Power Supply Units protections, like HIPOT, OVP (Over Voltage Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), etc . These are important info to look when buying PSUs, as the lack of those protections means the PSU doesn't have much quality and might damage the computer. They are, however, briefly mentioned at Power supply#Specification.--MisterSanderson (talk) 17:01, 30 November 2018 (UTC)[reply]

The truth is, in large, not special produced series, there are no dedicated components inside what care for this specifications. HIPOT is a 5kV insulation test of the transformers, before brought to the supply production. If the PSU is specified, the whole PSU is testet, before leaving the factory. OVP requires to monitor each output rail on voltage, which is generating a error signal to stop the smps-controller. SCP is not measured, the difference to a charger is to allow for a limited time not reaching the output voltage on full power, to make hard drives spin-up of peak power consuming operations of the CPU not to shutdown the psu immediately. Smps-controllers like the TL494 or KA7500 are made for one output voltage, only. But can be used for PSU by designing a circuit around it. The KA3511 supports 3.3, 5, and 12V rails. But there are still on the variants on the market. --Hans Haase (有问题吗) 07:59, 3 December 2018 (UTC)[reply]
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