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Twenty topology of switching power supply

Updated: 2022-03-17
Views: 5803

Switch and diode output

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10 Chinese Electric Sciences: PCBA Cold Welding Comprehensive Analysis

Updated: 2022-03-17
Views: 5884

I. Overview In the installation of electronic products, the phenomenon of virtual welding has always been the most prominent problem that plagues the reliability of the welding joint work. Especially in high -density assembly and lead -free welding, this phenomenon is even more prominent. Electronic products (including……

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Introduction to thyristor parameters and models_The Introduction of Common Singles and Bidirection Singles

Updated: 2022-03-17
Views: 5908

There is a very high degree of attention to electrical products, and today I want to introduce silicon models. As the use of electrical appliances is becoming more and more frequent, the number of electrical products in our lives also becomes more, and the use of electrical appliances is very harmful to our human body ……

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Causes and fault checking methods of components

Updated: 2022-03-17
Views: 6520

In the process of using electronic components, it often fails. Facding means that the circuit may fail, which will affect the normal work of the equipment. Here is an analysis of the failure and common failures of common components. Most of the faults in electronic devices are caused by the failure of electronic compon……

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IGBT chip brief history (2)

Updated: 2022-03-17
Views: 6434

Aluminum and copper's streaming capabilities and heat capacity are far better than aluminum, so IGBT5 allows higher working temperature and output current. At the same time, the chip structure is optimized, and the thickness of the chip has been further reduced. Skills: 175 ° C working temperature, 1.5V saturated volta……

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IGBT chip brief history (1)

Updated: 2022-03-17
Views: 5867

It is said that in 2018, the IgBT rivers and lakes have shocked the sixth and seventh -generation heads. They were in the limelight, and people eating melon all guessing the origin of the two heroes. Some good things have sorted out the several generations of the leaders of the Yingjia years, and the leaders of the lea……

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Driving Drive Circuit (MOC3040 Application Circle)

Updated: 2022-03-17
Views: 5942

Describe a component of a two -way thyroely zero -voltage trigger drive circuit (MOC3040 application circuit). It consists of two parts: input and output. The diode emits sufficient intensity infrared rays under the actual direction of 5 ~ 15ma to trigger output parts. The output part is a silicone light -sensitivity t……

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Grade 2021 Tsinghua University Electronic Information Welcome Conference was successfully held

Updated: 2022-03-17
Views: 6369

On the morning of September 3rd, the Electronic Information Welcome Conference of Tsinghua University in 2021 was held in Rom Tower. Wang Yu, chief professor of electronic information, director of the Department of Electronics, Wang Guangzhi, Director of the Department of Biomedical Engineering, Jin Depeng, Secretary o……

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Increase 12 times! Is the Japanese SIC technology opened again?

Updated: 2022-03-17
Views: 5903

According to Japanese scientific and technological media reports, AIST has developed a high -speed SIC chip polishing technology that can increase speed by 12 times and greatly reduce costs. This technology will soon introduce the integrated processing process of 6 -inch SIC wafers: ▲ Fast speed: Traditional speed spee……

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IP technology and its industrial development characteristics in integrated circuit design

Updated: 2022-03-17
Views: 6005

Abstract from the development trend of the integrated circuit design industry technology development, discussed the technologies of IP nuclear -related technology

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How to determine the root cause of PCB welding problem?

Updated: 2022-03-17
Views: 6137

In the process of printing circuit board manufacturing, the quality of welding quality will directly affect the quality of the entire machine's product. Common weldability problems are: poor wetness, monument, cracks, pores, fake welding, virtual welding, bad tin and slag defects. The reason, what causes the product to……

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Slice analysis technology in the micro structure of electronic products!

Updated: 2022-03-17
Views: 5953

The high integration and miniaturization of electronic products, the fine wires and tiny pore diameter brought by the high precision, miniaturization, and PCBA high -density interconnection of electronic packaging, have made stricter requirements for detection methods and technologies. Slice analysis technology is wide……

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