July 2022

What can semiconductor diodes be classified according to their construction?

The semiconductor diode mainly depends on the PN junction and work. The point contact type and Schottky type, which are inseparable from the PN junction, are also included in the range of general diodes. Crystal diodes can be divided into: ⒈ Dot contact diode Point contact diodes are formed by pressing a metal needle on …

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China Academy of Information and Communication Technology: The electronics manufacturing industry maintained stable growth in the first half of 2022

China Information and Communications Academy said that in the first half of 2022, driven by the weakening impact of the pandemic, the gradual recovery of logistics and consumption stimulus policies, the electronics manufacturing industry maintained a rapid growth trend, played an obvious role in driving the overall industry and became an important pillar of industrial …

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How to judge whether the capacitor is good or bad?

How to measure the quality of small capacitance? 1. Detect the small capacitor below 10pF. Because the capacity of the fixed capacitor below 10pF is too small, if the pointer type is measured with a multimeter, it can only be qualitatively checked whether there is leakage, internal short circuit or breakdown phenomenon. When measuring, the …

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Common-mode inductor

Working principle of common mode inductor Common mode inductance In a circuit, when a differential mode signal passes through a common mode inductor, the magnetic flux produced by the differential mode signal in the core is equal in magnitude and opposite in direction. The net flux is zero, so the common-mode inductance to the differential …

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The method of finding the equivalent resistance of mixed resistance

Hybrid equivalent circuit generally includes 1. Simple hybrid circuit, 2. Load hybrid circuit. The equivalent circuit can be calculated after the simple hybrid circuit can be directly connected in series and parallel. The circuit can be seen intuitively: R2 is connected in parallel with R3, then in series with R1, then in parallel with R4. …

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Huawei's Kirin 9000S chip has announced that the Mate 50 will be used to support 5G

This week, Huawei released the full chip configuration of huawei Mate 50, in which the RS version will use a 5G version of Kirin chip, combined with Hongmeng OS 3.0. The combination of Hongmeng OS 3.0+ Kylin 9000S+5G is worth looking forward to. According to the current progress, Huawei will officially release the official version …

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