The power supply of a computer is an indispensable part of the computer, which is used to provide power to various parts of the computer. Among them, 12V output is a more common output voltage. So the question is, what is the range of A for the 12V output of a computer power supply? What is the qualified range of the 12V output voltage of a computer power supply?
Range of 12V output of a computer power supply
In computer use, the greater the total power of the power supply, the more 12V outputs there will be in its circuit. For example, the current computer power supply generally has a minimum power of more than 300W, so there will generally be at least one 12V output, and larger power will also be configured with 2 or more 12V outputs.
For home computers, the range of 12V output is roughly between 18A and 25A. If it is a gaming computer, especially those high-performance gaming computers, the 12V output will be more.
Regulations on 12V output of computer power supplies
In my country, there are relevant regulations for the output voltage range of computer power supplies. The national standard for computer power supplies is GB/T 19827. Among them, the 12V output voltage range of the computer power supply is +11.4V ~ +12.6V, and the relative error shall not exceed ±5%. In other words, the maximum deviation of the voltage range of the 12V output of the computer power supply should be controlled within 0.6V, so that it is qualified.
Generally speaking, for a qualified computer power supply, its 12V output voltage will not fluctuate greatly even under high load. Therefore, when purchasing a power supply, the compliance of the 12V output voltage can also be ensured by the choice of power supply.
Regarding the regulations of computer power supplies, it is also necessary to note that the traditional AT power supply is no longer used, and most power supplies have now turned to ATX power supplies. Therefore, when purchasing a power supply, it is also necessary to pay attention to whether it is an ATX power supply, otherwise it may not be compatible with the computer circuit board, resulting in failure to start normally.
Summary
The power supply of the computer is one of the indispensable components of the computer, and its 12V output range and regulations also need our attention. For general home computers, the range of 12V output is roughly between 18A and 25A; for high-performance gaming computers, it will be more. According to the standards in my country, the 12V output voltage range of a computer power supply is +11.4V ~ +12.6V, and the relative error shall not exceed ±5%. Therefore, when purchasing a power supply, you need to pay attention to these regulations to ensure the effectiveness and safety of the power supply. At the same time, when purchasing a power supply, you also need to pay attention to whether it is an ATX power supply, otherwise it may not be compatible with the computer circuit board, resulting in failure to start normally.
