The computer power supply is a closed independent component installed in the main box. Its function is to convert the AC power to different voltages, stable and reliable DC power, and supply the system board, various adapters and expansion cards, hard disk drives, and optical disks in the main box. System components such as drives and keyboard and mouse use. So, what test items need to be done for EMC testing of this product? Let's take a look together!
What is EMC testing?
EMC testing is also called electromagnetic compatibility (EMC). The full name is Electro Magnetic Compatibility, which refers to the comprehensive evaluation of the electromagnetic field interference (EMI) and anti-interference ability (EMS) of electronic products. It is one of the important indicators of product quality. The measurement of electromagnetic compatibility consists of a test site and a test instrument. The purpose of EMC testing is to detect the influence of electromagnetic radiation generated by electrical products on the human body, the public power grid and other electrical products that work normally.
Computer power supply EMC electromagnetic compatibility test project
1. Conducted interference voltage
2. Radiation field strength
3. Interference power
4. The antenna terminal interferes with the phone
5. Harmonic current
6. Fluctuating voltage
7. Radio frequency interference voltage
8. High and low frequency magnetic field
9. Intermittent interference
10. Electrostatic discharge
11. Transient pulse
12. Radio frequency continuous wave
13. Continuous wave conduction interference
14. Power frequency magnetic field
15. Electric fast pulse group
16. Power supply voltage transient
Information to be prepared for EMC testing of computer power supply
1. For the format of the electromagnetic compatibility certification application form, please refer to China EMC Certification Center: application materials;
2. A copy of the "Corporate Legal Person Business License" or the registration certificate of the application for certification;
3. Proof of stable product quality and mass production capacity;
4. The quality manual of the applicant enterprise;
5. An overview of the production process of the products applying for certification is in duplicate;
6. Product manual;
7. Product structure description is in duplicate;
8. Product electrical schematic diagram and printed circuit board diagram;
9. The list of key parts of product electromagnetic compatibility is in duplicate (with official seal);
10. Other relevant information as required when needed.
Computer power supply EMC test process
1. Specify the test program and test rules
2. Determine the standards based on
3. Exchange test interface information
4. Check the measuring instrument
5. Start sub-test
6. Issue a test report.
For computer power supply EMC testing, please contact our company ZRLK. We will provide you with professional and efficient testing and certification services with favorable prices and good service. If you provide us with product pictures and specifications, we will give you the corresponding cycle, quotation and specific plan according to your product, and you are welcome to inquire!
