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With the rapid increase of electronic modules, the massive data interaction and real-time requirements brought by ADAS and unmanned driving scenarios, and the information security challenges brough...[Details]
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What are harmonics? How to calculate? How to interpret the results? There are so many harmonic algorithms, what’s the difference? Which one should I use? How to judge harmonic power flow? What are ...[Details]
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Three-way speakers
Three-way speakers are generally divided into speakers with more than three units, including tweeters, mid-range units and woofers. There is a crossover inside the box, whic...[Details]
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Overview
As digital audio and video provide consumers with a stereo, high-definition audio experience, testing has shifted from traditional static, single-frame analysis to dynamic testing, picture...[Details]
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Motor loads such as hand tools, inkjet printers and hard disk drives require a higher starting current at the moment of starting. Faced with such a wide range of power requirements, if the transfor...[Details]
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September 12, 2023, Beijing - Qualcomm Incorporated donated RMB 8 million to the China Rural Development Foundation through Qualcomm Wireless Communications Technology (China) Co., Ltd. to support th...[Details]
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According to Jiwei.com, according to GSMA industry analysis released by Reuters, if Europe decides to ban the purchase of telecommunications equipment produced in China, it will increase the cost of ...[Details]
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Since the opening of the first commercial telegraph line in 1844, the global telecommunications industry has been demonstrating the most advanced technical and economic progress to the world. All a...[Details]
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From December 19 to 21, the first "China Automotive Charging and Swapping Ecosystem Conference" was held in Fuyang, Hangzhou. With the theme of "Meeting New Challenges and Promoting the High-Qualit...[Details]
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Fingerprint sensor (also known as fingerprint sensor) is a key device for automatic fingerprint collection. The earliest fingerprint recognition technology is an optical recognition system based on op...[Details]
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First, let's look at the pin connections between DM9000 and MINI2440.
DM9000 MINI2440 Functional Description
SD0 DATA0 data signal
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SD15 DATA15 data signal ...[Details]
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Don't underestimate the small capacitor. It has a great effect. Have you ever used it in an electronic product? It is everywhere. If it is not used properly, it will cause an ugly death. So first...[Details]
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As the SWITCH switches on and off, the current in the inductor L also fluctuates around the effective value of the output current. Therefore, a ripple with the same frequency as the SWITCH will als...[Details]
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Hardware platform: stm32F407Zet6 Software platform: stm32cubeMX 4.7+MDK5.14 Circuit connection: PE8-LED0, PE9-LED1, PE10-LED2, PE11-LED3 Step 1: Create a project using stm32cubeMX 1. Start the soft...[Details]
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Thyristor soft start and voltage reduction principle is a technology that uses thyristors to achieve soft start and voltage reduction of motors or other loads. In this article, we will introduce th...[Details]
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