Top Uses of Burst Tester and Generator for Quality Assurance

The burst generator is also called burst tester, is a kind of EMI filter, and its name comes from the “Electrical Fast Transient/burst” (abbreviated as EFT) experiment.

The EFT experiment is an immunity test experiment, which is divided into four levels according to the IEC61000-4-4 standard. Different levels of EFT generators have different injection voltages or cargo coupling voltages to the equipment.

Since the pulse rising edge of the EFT generator is 5ns±30%, and the pulse width duration is 50ns±30%, it is determined to show a wide-band energy in the frequency domain, and the spectrum can exceed 100MHz, which is different. than usual EMI filters.

It is precisely because of this spectral characteristic that the pulse group generator is required to have a wide spectral absorption characteristic, which is the biggest difference between it and ordinary EMI filters.

Test purpose of fast transient burst:
In a circuit, the switching of an inductive load by a mechanical switch usually causes interference to other electrical and electronic devices in the same circuit.

The characteristics of this type of interference are: pulses appear in groups, the pulse repetition frequency is high, the rise time of the pulse waveform is short, and the energy of a single pulse is low.

In practice, the probability of equipment failure due to electrical fast transient bursts is relatively small, but it is often seen that equipment malfunctions, unless there are suitable countermeasures, otherwise it is difficult to pass.
The purpose of the EFT burst test is to establish a common basis for evaluating electrical and electronic equipment against EFT bursts.

The mechanism of the test is to use the accumulation effect of the pulse group on the distributed capacitance energy of the line. When the energy accumulates to a certain extent, it may cause the line (and even the equipment) to work incorrectly. Usually, once the circuit under test makes mistakes, it will continue to make mistakes. Even if the pulse voltage is slightly lowered, the mistakes will still continue.

Efficient application of fast transient burst generators in quality assurance:
In quality assurance, the fast transient burst generator is a very effective tool that can meet the quality inspection requirements of different products. Several pulses can be sent out in a short time, and the amplitude and frequency of each pulse can be controlled to provide accurate data while maintaining quality.

Fast transient burst generators are mostly used to detect and evaluate the electrical characteristics of various products, such as current, high voltage and linear power characteristics. It can measure the performance, resistance and durability of the product and is a very effective testing tool. This tool can provide key quality assurance data, which can measure the quality of the product and ensure the reliability of the product.

Fast transient burst generators can also be used to test the power consumption characteristics of electronic products, and to test and verify reconfigurable circuits. In addition, it can also be used for the detection of resistance to strong magnetic fields, and can detect the performance of products in a strong magnetic field environment. In addition, it can also be used to test the electromagnetic compatibility of the product and detect whether the product is affected by electromagnetic interference during the test.

Fast transient burst generators are widely used in quality assurance, which can ensure the quality of products, improve the accuracy of testing and inspection, and ensure the stability and reliability of product quality.

The EFT61000-4 EFT immunity tester is specially designed according to the characteristics and requirements of EFT measurement and it is an ideal disturbance source of EMS measurement. It has fine performance, such as high stability, high reliability, easy to use etc. It meets the standards requirements of IEC 61000-4-4, EN 61000-4-4, GB/T17215.301, GB/T17215.322 and GB/T17626.4. EFT61000-4 has LCD touch screen in both English and Chinese.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

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Tags：EFT61000-4