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Power supply
A power supply converts mains AC power to regulated low-voltage DC power that computers need to operate. There are two main types: AT and ATX. AT power supplies have a 6-pin connector while ATX has a 20-pin connector. The power supply filters voltages, adjusts them to levels components need, and prevents damaging power from reaching outputs. It provides 3.3V, 5V, and 12V that digital circuits and cooling fans use. Newer ATX 2.0 standards introduced a 24-pin connector. Components like capacitors, coils, and switches regulate input current and suppress noise. Popular brands include Corsair, Cooler Master, and Thermaltake. Power supply prices range
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Power supply
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- 3. Definition of PowerSupply A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a computer.
- 4. Power Supply Types AT= Advance Technology ATX = Advance Technology eXtended
- 5. How a powersupply works •The power supply converts AC from your homes outlet into DC which your computer needs to run. •It adjust the supplied voltage to the levels needed •It filters the voltages •Prevents any damaging power from reaching or take effect at the output.
- 6. How the computeruses the voltages • In the power supply the computer uses the 3.3 voltage and 5 volt to run the digital circuits. • The 12 volt is used to run motors like in the disk drive and the fan to keep the computer from over heating.
- 7. ATX Power Supply •ATX has a 20-pin connector for mainboard power • +12, -12, +5, -5, 3.3V output • The on/off switch of ATX units is controlled through the motherboard
- 8. AT Power Supply •There are 2- 6 pin connectors that supply power to the motherboard. • There are 4 voltages that AT supplies +5, -5 +12, -12.
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- 10. Difference between AT& ATX Power Supply
- 11. ATX 2.0 • 20pin connectors like the ATX power supply • ATX 2.0 has a 24 pin connector
- 12. How its convertedinto DC
- 13. Different Components ofPower Supply
- 14. Different Components ofPower Supply • Y type capacitor Which is connected between live and neutral ground and lead electrical shock to ground.
- 15. Different Components ofPower Supply • Manual power switch that is on the AT power supply models
- 16. Different Components ofPower Supply • Common mode choke coils are used to suppress common mode noise
- 17. Different Components ofPower Supply • Primary electrolytic capacitor controls the input current of the power supply and changes the phase shift between the current and voltage
- 18. Power Supply Brands •Samsung • Silen x • Cool master • Topower • Enhance • Hiper • Corsair
- 19. Power supply Pricing •Power supplies sell for as low as 45 dollars up to 500 dollars for the higher end kind that put out more voltage and have more protection from damage.
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Editor's Notes
- #4 A power supply is a device that supplies power to the computer from the outlet