How an PSU actually works

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franches

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Nov 11, 2014
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Alright hello, I am aware that this might not be the excellent place to ask this question, however I would like a detailed or perhaps not so detailed explanation of how a PSU works.

Currently I am aware that there is a Transformer inside of it and that it converts AC electricity to DC.

Can anybody tell me how it actually works e.g How it delivers electricity from the socket to the GPU or CPU etc?

Thanks!
 
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Dunlop0078
A PSU takes the voltage from your wall outlet and converts it to a bunch of different voltages that run your computer. So if you get 120v from the wall, the psu will take that and convert it to the different voltages a computer needs such as 12v, 3.3v, etc. How it does that can get complicated and I am certainly not knowledgeable enough to give you a good short explanation, if that is even possible. The article linked above looks like a good read, lots of reading is likely the only way you will get a good understanding.
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franches

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Alright I see thanks, I will be taking my time reading that, however would you be able to provide me with maybe a short version of how it works? Thanks!
 
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shrapnel_indie

shrapnel_indie

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The current PC power supply tech uses a switching power supply. it rectifies AC to DC, runs it through a PWM type process (power switches on and off very fast), charging the system to its rated voltage, it's filtered to cut down on the noise from switching and is then supplied to your parts.
 
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Dunlop0078

Dunlop0078

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A PSU takes the voltage from your wall outlet and converts it to a bunch of different voltages that run your computer. So if you get 120v from the wall, the psu will take that and convert it to the different voltages a computer needs such as 12v, 3.3v, etc. How it does that can get complicated and I am certainly not knowledgeable enough to give you a good short explanation, if that is even possible. The article linked above looks like a good read, lots of reading is likely the only way you will get a good understanding.
 
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