Key Features of ATX Power Supplies

September 10, 2024

ATX power supplies are a very important part of modern computers and home appliances, and their main function is to provide stable DC power to the equipment.ATX power supplies are manufactured by major brands such as Great Wall, Aircastle, and All Han, and are also available in a range of energy efficiency ratings such as White, Bronze, Silver, Gold, Platinum, Titanium, etc. The ATX Power Supply is made up of an AC input circuit, main power supply, auxiliary power supply, power-on signal circuit, and other parts.

ATX power supplies consist of an AC input circuit, main power supply, auxiliary power supply, power-on signal circuit and other components. The AC input circuit is responsible for converting utility power into stable DC power to supply the mainframe section. The main power supply uses a switching converter to convert AC to DC and provides various voltage outputs such as +3V, +5V, +12V, +33V, etc. to meet the needs of different devices. Among them, +3V is mainly used to drive chips on the motherboard, +5V is mainly used to drive hard discs, optical drives and other devices, +12V is mainly used to drive CPUs, graphics cards and other devices, and +33V is mainly used to drive high-power devices.

In addition, the ATX power supply also has a soft boot function, that is, when the computer is turned off, the power supply can be turned on by shorting the green and black wires of the ATX power supply plug, thus realising the soft boot of the computer.

The output terminals of the ATX power supply include +3V, +5SB and PS-ON, where +5SB is the standby voltage used to maintain the basic operation of the computer, and PS-ON is the power-on signal used to control the power on and off.

Common failures of ATX power supplies include blown switching power supply fuses, no output and 300V DC voltage from the power supply, and abnormal auxiliary power supplies. When assembling a computer, you need to choose the right size power supply according to the case size and pay attention to the energy efficiency rating of the power supply.

Overall, ATX power supplies are an integral part of modern computers and home appliances, and their main function is to provide stable DC power to the equipment with a soft boot function.

Author:

Mr. ken

E-mail:

ken@greenleaf-pc.com

Phone/WhatsApp:

+86 13713859947