How many Misunderstanding Of Power Supply do you know？

What is the main function of EMI circuit?

The function of EMI circuit is to filter out all kinds of interference signals from the power grid and prevent the high-frequency interference channeling power grid formed by the power switch circuit. EMI is an important part of the CCC certification.

Misunderstanding of power supply:

1: The rated power of the power supply should be small?The power consumption is determined by the power consumption of the platform, and has nothing to do with the power supply size.If the power supply is too small, it will Unable to start.

2: Power supply to choose the full module?The whole module group is only concerned with wire, more convenient line management, and good or bad have nothing to do.

3: Misunderstand conversion rate,Normal power supply, rated 450W. Can output 450W, 80% conversion rate means that the computer consumes 450W,the total power consumption of the home meter is 450÷80%=562W

4: Choose the maximum rated power of 2000W, small worry?There is no direct relationship between power supply and rated power.Power supply should be specific to a certain brand and a certain model, not by looking at the surface parameters.

Convert the higher input AC voltage (AC) into the lower direct current voltage (DC) required for, PC operation by running high frequency switching technology.

How much do you know about the working principle of power supply?

1:What is the basic working principle of power supply?

Convert the higher input AC voltage (AC) into the lower direct current voltage (DC) required for

PC operation by running high frequency switching technology.

2. What is the working process of power supply?

When the mains enters the power supply, it first passes through the choke coil and the capacitor filter to remove the high frequency clutter and interference signal, and then passes through the rectification and filtering to obtain the high voltage direct current. Then through the switching circuit to high frequency pulsating DC, and then send high frequency switching transformer step-down. The high-frequency AC part is then filtered out, so that the final output is relatively pure low-voltage DC power for the computer.

3. What is the main function of EMI circuit?

THE role of EMI circuit is to filter out all kinds of interference signals coming from the power grid, and prevent the high-frequency interference channeling power grid formed by the power switch circuit.

EMI is an important part of the CCC certification.