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This is my uboot environment variable setting. Under this setting, I can run the initram kernel (download from memory to nandflash and then run), but when running the nfs root file system, I keep g...[Details]
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1 Overview CAN timing analysis software is a plug-in that can automatically test the electrical characteristics of the CAN bus. It is suitable for hardware testing of all CAN bus products. The test s...[Details]
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Determining the type and pins of a transistor is a basic skill for beginners of electronic technology. In order to help readers quickly master the detection and judgment methods, the author summarize...[Details]
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According to Taiwan media Economic Daily, MediaTek recently conducted a technical test of four-carrier (4CC) uplink aggregation with Ericsson, setting an industry record for the highest transmission ...[Details]
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Vishay Siliconix's S121j o -48V to +5V or +3.3V converter designed for ISDN applications. Its included integrated ungrounded feedback error amplifier provides direct output voltage regulation. This a...[Details]
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Principles of Blanking and Synchronization
1. Blanking
In the television system, the image signal is transmitted during the forward scanning period, and the image signal is not transmitted du...[Details]
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ARM processor is a 32-bit reduced instruction set RISC microprocessor, which integrates rich hardware resources and is widely used in many embedded systems. S3C2440 is a 32-bit RISC embedded proc...[Details]
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NAND Flash is a non-volatile memory using NAND structure technology. It has the characteristics of ROM memory. The data stored in the chip can be maintained for 10 years without loss in the case of...[Details]
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Eight high-power charging piles stand side by side, capable of charging up to 60 kWh in 15 minutes... Early in the morning of July 19, a new energy vehicle equipped with a wireless charging system ...[Details]
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Correct use of the multimeter can not only quickly and accurately determine the fault location, but also prevent damage to electrical equipment and the multimeter itself. 1. Check the block before...[Details]
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September 23 (Reporter Wu Tao) Recently, the reporter learned from China Mobile that China Mobile's 5G commercial reservation activities will be fully launched from September 20. Customers can partic...[Details]
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On September 10, Huawei released a new smartwatch, Huawei Watch GT 2 Pro, which features a sapphire surface, a high-strength titanium case, and a precision ceramic back case, making it of higher qual...[Details]
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Abstract/Introduction
Plating affects the life and quality of a connector system, including corrosion resistance, conductivity, solderability, and of course, cost.
...[Details]
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1.
Basic requirements of
driving
circuit
An ideal
IGBT
drive circuit should have the following basic performances:
(1) Strong dynamic driving capability, capable of p...[Details]
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The most widely used scenario of inductors is power supply. Both boost circuits and buck circuits require an inductor to store and release energy. Many novice friends are too familiar with the prin...[Details]