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Recently, an Amazon Alexa user said that when he asked the voice assistant Alexa about the heart cycle, he got the following answer: "Heartbeat is the worst process of the human body. People are livi...[Details]
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1 Composition and working principle of constant current source The constant current source circuit is shown in Figure 1. In the figure, A is a high-precision op amp, Q1 and Q2 are power MOSFETs, and ...[Details]
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As we all know, VRLA battery (valve-regulated sealed lead-acid battery) is also a lead-acid battery. Since it is a lead-acid battery, it should have the same working principle as the open lead-acid...[Details]
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After nearly 3 days of hard work, I finally succeeded in debugging. However, it is still an early stage and reliability, usability and security need to be strengthened in the future. At least now I ca...[Details]
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A model of the Beidou satellite navigation system was displayed at an exhibition in Hunan Province in April. According to the Nikkei, the United States has long been a leader in global satellite...[Details]
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As a new type of display material, LED dot matrix has developed rapidly in recent years and has a good market prospect. Among them, LED large-screen display screens are widely used in industries, tra...[Details]
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The theme of this issue is: How can traditional Chinese car companies ensure the security of the Internet of Vehicles in the tide of autonomous driving?
Editor's note: The rise of Int...[Details]
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The latest Internet Security Report shows that the gaming industry has developed into a very active and fast-growing underground economy, with data leaks and credential stuffing attacks being the mai...[Details]
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Air suspension is no longer exclusive to top luxury cars. At present, many domestic new energy vehicles worth 300,000 yuan are also equipped with air suspension systems. On the one hand, this is an...[Details]
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Hikvision issued an announcement stating that official directors Hu Yangzhong and Gong Hongjia received the "Investigation Notice" from the China Securities Regulatory Commission on November 11, 2019...[Details]
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Figure 2 Boost DC/DC Converter
When operating in external synchronization mode, the operating frequency is set by the clock, and the conversion cycle starts at the rising edge of the input clo...[Details]
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SysTick timing calculation (when the system clock is 72M) t = Reload * (1/Clk) When Clk = 72M, t = (72) * (1 / 72M) = 1 us When Clk = 72M, t = (72000) * (1 / 72M) = 1ms 1s = 1000ms = 1000 000 u...[Details]
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Bandwidth is the first parameter most engineers consider when choosing an oscilloscope. This article will provide you with some useful tips on how to choose the right oscilloscope bandwidth for your ...[Details]
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Many old AirPods users around me have given such comments on AirPods 3. However, as one of the benchmark products in the field of true wireless headphones, it still has a strong influence. In ...[Details]
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Recently,
WPG Holdings (hereinafter referred to as WPG),
a leading international semiconductor component distributor dedicated to the Asia-Pacific market
, announced that its subsi...[Details]
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