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How to detect the EMC reliability of the LED Flood Light

Time:2015-10-23 Views:716 Compile:SUNPER

Here are ways on how to detect the EMC reliability of LED flood light. To start with is how well the LED flood light devices and systems are compatible. The electromagnetic compatibility is the problem to these devices is defined as the systems, equipment and subsystems in an environment together with the respective functions. Thus, they are not due in the same electromagnetic environment but in the hopes of finding other devices that emit electromagnetic. However, the electromagnetic emissions that cause performance degradation are not allowed.


It is worth noting that the EMC includes two aspects; electromagnetic interference EMIC and electromagnetic tolerance EMS. The radiated interference is the interference signal which is usually generated by the electronic device coupled to the interference signal to space electric network or the electronic device. The electronic products are classified as industrial, commercial and military grade products. The different grades of products usually have different standards which meet the required criteria at a certain level known as electromagnetic compatibility. One requires a series of compatibility tests in order to determine whether the LED flood light electromagnetic is compatible or not?


The electromagnetic compatibility test system can be divided into EMI as well as EMS. This is in terms of both the particular use of several important steps for the LED flood light systems and devices. In order to detect the EMC reliability of the LED flood light, always check the following.


Conducted interference and radiation interference


The conducted interference is the LED lighting devices itself thereby performing electromagnetic interference conductor transport. The frequency range of this test is about 9KHz to 30MHz. The radiated interference is generated by the device itself through the space electromagnetic interference formation. The LED flood light internal is formed by the interference of the external radiation through the wire and cable products.


Harmonic current disturbance and ESD anti-jamming capability


The harmonic current disturbance causes current to be in non-linear loads and thus it affects the supply current waveform to distortion. Such interference causes pollution. The ESD anti-jamming capability is all about the human body with static electricity. This phenomenon is a bit serious during the dry winter. It is easier to get a body friction carry large amounts of static electricity.


EFT interference and Lighting Surge anti-jamming capability


Most products relays close and open and the same circuit can also interfere with other electronic devices. The lighting surge anti-jamming capability is about the great energy surge voltages and currents on the cable. This can easily lead to damage of the devices. In addition to this, large-scale switch momentary surge currents and voltages shall be formed on the supply line.


Frequency drop anti-jamming capability


Short interruptions, voltage variations and voltage dips are all known as frequency drop. The drop interference resistance index cycle assessment of the LED lighting device relies on if they have ability to work in unstable grid. The test should only be carried out on the input side rather than the rectification of the LED flood light. Therefore, it is good to test the input supporting the drive control as well as the output of the circuit of the LED flood light.





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