Abstract
In this paper, several aspects were studied, including the effect of an electromagnetic interference (EMI) noise interference strategy with High Definition Multimedia Interface (HDMI) 1.4, the analysis of a test on a printed circuit board (PCB) layout, and a comparison of the near field intensity radiation distribution between an EMI with a modified HDMI layout and an original layout. In this study, the near field detection instrument of APREL EM-ISight was employed to analyze the distribution of the strength of an electromagnetic noise field. After the practical validation, we found that the PCB layout complies with the standards after the modifications. Meanwhile, the PCB layout satisfies the requirements of most laptop HDMI-related products for EMI.
Highlights
At present, electromagnetic compatibility has attracted much attention from the science and technology industry
During thedevelopment developmentof an of electronic an electronic product, when the electrical engineer or the engineer lacks the relevant knowledge of electromagnetic compatibility (EMC), a (EMC), flawed design is mechanical engineer lacks the relevant knowledge of electromagnetic compatibility a flawed unavoidable in the initial research and development stage
When whenthethe electronic circuits are designed, engineers take into only signal integrity (SI), power integrity andintegrity impedance matching accuracy (IMA), which means consideration only signal integrity (SI), (PI), power (PI), and impedance matching accuracy the poor design of conducting wires in is ignored, causing an (IMA), which means the poor design of conducting wires in printed circuit board (PCB) is ignored, causing an most mechanical engineers only give consideration the give stackconsideration structure andtothe minimum line-to-line problem
Summary
Electromagnetic compatibility has attracted much attention from the science and technology industry. Electronics 2020, 9, 426 worse, in some cases, it is necessary to redesign the product, which is not desired by the company This problem arises from the design stage. In impact of electromagnetic interference, and the choice of countermeasure is unavailable Addition, these problems result from the design flaws and from the countermeasure selection. Combined with the test errors, as mentioned above, there is a there is a difference of up to 9 dB This is a significant topic for engineers [7,8,9]. This paper presents a a printed circuit board (PCB) layout based on satisfying customers’ requirements for HDMI noise. Practical study of a printed circuit board (PCB) layout based on satisfying customers’ requirements for HDMI noise
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