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Common problems with transient immunity

Release time:

2023-05-31 10:35

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Now there are a lot of people do not understand some basic information about transient immunity, so as a manufacturer, it is necessary for us to briefly explain, in fact, this transient immunity is also playing a very important role in the industrial field, so that we should timely understand the common problems of transient immunity, so that in the operation can be faster familiar with and use.

First of all, we know that in the definition of transient immunity, the transient pulse mentioned by electromagnetic compatibility means that the interference pulse is intermittent, usually with relatively high interference voltage, wide spectrum range and relatively fast pulse rise time. It also includes the electric fast transient pulse group, as well as electrostatic discharge and surge impact and other contents, so in the transient immunity test results of the judgment and suppression circuit will have relatively large common ground. It's also because they all have these characteristics in common. The common test results of transient immunity testing can also be classified according to the working conditions and functional specifications of this product according to the following contents, which are carried out for different test results. Such as the temporary reduction or loss of normal performance and function within the technical requirements, requiring operator intervention or system reset, and the ability to recover performance despite the temporary reduction or loss of function.

If the performance is normal within the range of technical requirements, the transient immunity test results will be judged as qualified, which means that the product functions normally during the whole test process, and its performance indicators are also in line with the technical requirements. When it meets the condition of temporary reduction or loss of function, but can recover performance by itself, its test results should be based on the product standard and the product instruction manual or test outline, then if some effects are not considered important, it can be judged to be qualified. Then if it is, you can restore the performance by yourself. In the case of products with normal performance within the scope of technical requirements, the results of the test will be judged as unqualified in most cases except in special circumstances and without causing harm. This is due to damage to equipment (components) or software or loss of data, resulting in irretrievable reduction or loss of function. So for those two conditions, the test report should say category B or category C and category B should say how long they lost function.

The content of the above article is to introduce common problems about transient immunity for you to understand the key points. See a friend can read carefully. Of course there's a lot more information about transient immunity. We will continue to update in the future. And do not understand the place can be consulted at any time.

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