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Common AC/DC/AC inverters perform frequency conversion and voltage conversion on the output part. Among various inverter control technologies, the most widely used inverter control technology is sinu...[Details]
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On June 29, the official WeChat account of Yibin Economic and Information Technology Bureau released a message showing that the Academician Ouyang Minggao Workstation (Sichuan
New Energy Vehicl...[Details]
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Why are there two startup methods? This is determined by the different characteristics of the two types of FLASH. NAND FLASH has a large capacity and the cost of storing unit bit data is much lowe...[Details]
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The selection of power supplies is an old topic. For users who often pay attention to computer information, choosing a power supply is no longer a difficult task. For general computer users, even if ...[Details]
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During the MCU decryption process, general decryption companies have stated that they cannot guarantee the success of decryption 100%. MCU decryption will be affected by a variety of internal and ext...[Details]
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1. Initialization of SD card in uboot 2. Read sectors 3. Write variables to SD card 4. 1. Initialization of SD card in uboot 1.1 Hardware connection MMC0_CDN -- GPG6 -- SD card detection pin MM...[Details]
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1 Functional Overview
The bit processing unit (BMU) is mainly composed of instruction fetch circuit, shift data processing circuit, shift selection processing circuit, barrel shift circuit an...[Details]
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1 Design concept and solution
As the latest lighting technology, LED has the same advantages as its predecessors. Its advantages are not only reflected in the light quality, but also in produc...[Details]
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Maxim's MAX7219 chip is used for dynamic scanning display driver. The chip has 8x8 static RAM, dynamic scanning circuit, and segment and bit drivers that can store display information. It is connec...[Details]
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After overcoming the controversy over screen defects, Galaxy Fold has been sold in South Korea. Many consumers have received the physical phones. As media and consumers continue to upload reviews, th...[Details]
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As one of the key sensors indispensable for high-level self-driving cars, LiDAR has been too expensive for a long time, which has kept many players away, the most typical example being Tesla. Startin...[Details]
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This circuit diagram is equivalent to a coordinate diagram. Each key has a unique coordinate to determine which key is pressed. Method 1: Line-by-line scanning: The matrix keyboard is scanned line ...[Details]
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The fluctuations in the automotive terminal market are also having a profound impact on the core intelligent industry chain. The business performance of some leading suppliers in the first quarter ...[Details]
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There are too many uncertainties in sound. Despite this, engineers still try to set some rules. You should know that these "rules" are not very old and may not be as old as they used to be. Otherwi...[Details]
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Chromatographic conditions of Australian solanine: mobile phase: acetonitrile-0.05% heptafluorobutyric acid (30:70) system as mobile phase, flow rate of 1.0ml/min, detection wavelength of 210nm. Mel...[Details]
PCB Design
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