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Circuit principle: AC220V mains is stepped down by transformer T1, and after full-wave rectification by D1-D4, it is supplied to the charging circuit. When the output end is connected to the set b...[Details]
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The picture is from Canva 据市场调查机构 Canalys 公布的最新报告显示,2020 年第一季度全球智能手表出货量为 1430 万块,同比增长 12%。其中,苹果依旧稳居第一的位置,而华为则逆势实现同比增长到 113%,市场份额为 14.9%,其智能手表出货量达到了 210 万块,超越三星成为全球第二。 这个成绩对华为而言,应该说是可喜可贺。毕竟,在过去的几...[Details]
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There are many flow meters used to measure the flow of dirty water, clean water and other liquids on large-diameter pipelines, but they still have their own advantages and disadvantages. During the me...[Details]
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Jiwei.com reported on April 17 that there will be a Mini model in the ASUS ZenFone 8 series, model number ASUS_I006D. ASUS ZenFone 8 Mini has appeared in the Geekbench database, equipped with a Snapd...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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Nowadays, more and more models are equipped with head-up display (HUD) systems as standard. HUD can project information such as current speed and navigation onto the photoelectric display device on t...[Details]
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I. Overview Database firewalls seem to be a new security device that has appeared in recent years, but in fact they have a long history. In 2010, Oracle acquired Secerno and officially released its...[Details]
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Temperature measurement is a common measurement method in environmental testing. Traditional temperature measurement equipment displays the sample temperature on the equipment box, and test personnel ...[Details]
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Code: /* The fourth example of C language Question: Enter a certain year, a certain month and a certain day, and determine what day of the year this day is? Program analysis: Taking March 5th as ...[Details]
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The MCS-51 microcontroller contains 2 timers/counters with 4 working modes. It has two working modes (counter mode and timer mode). The MCS-51 microcontroller contains 1 full-duplex serial port with ...[Details]
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Traditionally, computing tasks in cars are performed by microcontroller units ( MCUs ) and application processors (APs). A typical mid-range car can contain 25 to 35 MCUs/APs, while luxury cars may u...[Details]
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As supply chain bottlenecks and geopolitical threats continue, countries and regions are increasingly concerned about the security of the semiconductor supply chain. On June 19, the Wall Street Journ...[Details]
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1 Introduction
Insulated Gate Bipolar Tramistor (IGBT) is a composite device of MOSFET and GTR. Therefore, it has the advantages of MOSFET, such as fast working speed, high switching fre...[Details]
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We typically describe high-speed analog-to-digital converters (ADCs) and digital-to-analog converters (DACs) in terms of continuous wave (CW) signals. The reasons for this are: 1) in the case of AD...[Details]
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This application note provides design guidelines for the optomechanical part of the MAX25205 and MAX25405 gesture sensors. A key design issue in gesture detection systems based on infrared (IR) tec...[Details]