Electromagnetic CompaTIbility (EMC) is the science of studying that various electrical equipment can work together under the functional conditions of limited space, time and spectrum resources without degradation. Another explanation is that EMC is a technology. The purpose of this technology is to make electrical devices or systems in a common electromagnetic environment, neither affected by the electromagnetic environment, nor will it affect the environment. EMC means EMI and EMS. Including conducted interference and anti-interference, radiation interference and anti-interference, harmonics, static electricity, power frequency magnetic field, lightning and other test items. The laboratory is used to test these items. Components related to EMI, ESD, EFT, SURGE and other EMI and EMS-related countermeasure components are called EMC components. Such as beads, common chock, etc. 1. EMC is the abbreviation of "Electro MagneTIc CompaTIbility" in English, translated as "electromagnetic compatibility". It refers to the ability of a device or system to operate in compliance with the requirements in its electromagnetic environment and not produce intolerable electromagnetic interference to any device in its environment. EMC includes two requirements: on the one hand, the electromagnetic interference generated by the equipment in the normal operation process cannot exceed a certain limit; on the other hand, it means that the equipment has a certain degree of electromagnetic interference in the environment. Immunity, that is electromagnetic susceptibility. two. The components that meet the electromagnetic compatibility function are electromagnetic compatibility (EMC) components. Electromagnetic compatibility components are the key to solving electromagnetic interference emission and electromagnetic susceptibility. The correct selection and use of these components is a prerequisite for electromagnetic compatibility design. three. Commonly used EMC devices are: common mode inductors, magnetic beads, filter capacitors, etc. EMC is electromagnetic compatibility, which refers to EMI and EMS, that is, interference radiation intensity and anti-interference radiation intensity, which should be an evaluation index for radio wave interference. ESD is an electrostatic discharge test, which is a kind of anti-interference test. EMS is an anti-interference test, that is, an endurance test. ESD usually includes four levels, please see GB/T17626.2 for details, the highest level is 15kV ESD is to simulate the electrostatic interference of the outside world to the product in use, including direct discharge and indirect discharge. Direct discharge includes air discharge (for insulated enclosures) and direct contact discharge (for non-insulated enclosures). Indirect discharge includes HCP (coupled through horizontal coupling plate) and VCP (coupled through vertical coupling plate) ESD is a completely different content. It is called electrostatic damage. Generally, ESD devices refer to devices that prevent electrostatic damage to equipment. The current ESD product is a high-voltage absorber, and the structure is a forward and reverse electrostatic absorber composed of a Zener tube and a high-voltage triode. It is commonly used on hot plug interfaces such as USB. The buzzing incident of the INTEL motherboard burning South Bridge was caused by cutting corners and not installing ESD devices. It can be seen from the above that EMC is a performance standard, and ESD is a phenomenon that needs protection. Crystal Usb Flash Disk,Usb Flash Disk 32Gb 128Gb,Led Color Light Usb Flash Disk,Usb Flash Disk 2.0 64Gb MICROBITS TECHNOLOGY LIMITED , https://www.hkmicrobits.com
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What is the EMC experiment? What is the relationship between ESD and EMC of the emc device?
What is an EMC experiment