Atx Pc Power Supply Circuit Diagram

By | May 27, 2023

The ATX power supply is a type of power supply unit (PSU) that is used in desktop computers. It is characterized by its 24-pin main power connector, which is used to connect the PSU to the motherboard. ATX power supplies also typically have a 4-pin auxiliary power connector, which is used to provide additional power to the CPU.

ATX power supplies are available in a variety of wattage ratings, from 300 watts to 1,000 watts or more. The wattage rating of a PSU is a measure of its maximum output power. The higher the wattage rating, the more powerful the PSU is and the more devices it can power.

ATX power supplies are also available in a variety of form factors. The most common form factor is the ATX12V form factor, which is used in most desktop computers. Other form factors include the SFX form factor, which is used in small form factor computers, and the TFX form factor, which is used in thin client computers.

The ATX power supply circuit diagram is a schematic representation of the electrical components and connections inside the PSU. The circuit diagram can be used to troubleshoot problems with the PSU or to modify the PSU to improve its performance.

The ATX power supply circuit diagram typically includes the following components:

  • A transformer to convert the AC input voltage to a lower DC voltage
  • A rectifier to convert the AC output voltage to a DC voltage
  • A filter to smooth out the DC output voltage
  • A voltage regulator to maintain the output voltage at a constant level
  • A fan to cool the PSU

The ATX power supply circuit diagram is a valuable resource for anyone who wants to understand how the ATX power supply works or who wants to troubleshoot problems with the PSU.


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