TU-TESL

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According to foreign media reports, Rohm, the semiconductor manufacturer, announced the development of ba8290xyxxx-c-series series grounding detection comparator. This series of comparators have excellent anti electromagnetic interference (anti noise) performance and are suitable for sensor applications in automotive systems, such as ECU and power system. (photo source: Official Website of Roma) the new progress of computerization and the increase of a large number of electronic equipment have increased the noise of electric vehicles and vehicles equipped with ADAS. However, in the development stage, it is difficult to evaluate the noise of the circuit board and the system separately and implement the measures against the noise. Evaluation and measurement can only be conducted after the whole vehicle is assembled. This makes the optimization process for noise very long and expensive, which may require multiple iterations. To this end, in 2017, Roma developed the use of emarour Gamma Operational amplifiers. EMARMOUR Gamma It is the patented technology of Roma, which has superior anti noise performance and helps to reduce the design resources needed for anti noise measures. In order to further meet the market demand, Roma launched the first ultra strong anti noise comparator adopting the same breakthrough technology. This series of comparators have excellent anti noise performance when used to determine the threshold value of the sensor output signal. When tested according to iso11452-2 standard, the output voltage fluctuation in all noise frequency bands is within ± 1%. Due to the influence of noise, the output voltage fluctuation of traditional comparator is usually as high as ± 20%, and even leads to failure (high / low inversion). In contrast, Roma's new range of products is not affected by noise and has higher reliability. In general, external filter is needed for noise evaluation and measurement, while this series of products reduces the time required for noise evaluation and measurement, thus reducing the system design man hour. Roma classifies its new comparator as emur Gamma Series. Roma is committed to using its anti noise technology in other power integrated circuits of the company to make the design of automobile system simpler and more reliable.