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This article introduces a pulse measuring instrument made of a single-chip microcomputer. Just put your finger in the sensor and you can quickly and accurately measure the pulse rate per minute. Th...[Details]
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2-1-1. Working principle of switching transformer Switching transformers generally work in a switching state; when the input voltage is a DC pulse voltage, it is called a unipolar pulse input, such a...[Details]
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From November 19th to 21st, China Mobile's Global Partner Conference, which has been held for eight consecutive years, opened as scheduled. In the past year, the construction of 5G networks has conti...[Details]
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It has been 10 days since I last wrote about my journey. It was the National Day holiday, so I gave myself a few days off - I played some games, chess, etc. In fact, it took a lot of time a...[Details]
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———————————————————————————————————————————— Matrix keyboard recognition method (row scanning method) Check the status of the column line: The column lines Y4~Y7 are set to high level, and the row...[Details]
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The development of LTE has brought many new challenges to capacity testing, requiring different testing methods and technologies from those used in 3G networks. The system architecture of LTE is flat...[Details]
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1) Open the Xiaoma software 2) Click OK 3) Set up the hardware, click SetupInterface Setup… 4) If you run it for the first time, you will see the interface shown in the figure below 5...[Details]
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1 Introduction
In recent years, power electronics technology has developed rapidly, and various high-power fully controlled devices have been introduced. Among them, power MOSFET is wi...[Details]
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OFweek Cup 2022 China
Robot
Industry Annual Awards (abbreviated as OFweek Robot Awards 2022) is jointly organized by OFweek, China's high-tech industry portal, and its authoritative robo...[Details]
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Chips are everywhere, from national defense to social production and life. As the global chip shortage continues, the US industry support policy is gaining support from all walks of life. A public op...[Details]
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According to a news report from Xinhuanet, on the 20th, 18 apps (mobile Internet applications) from 10 companies including UnionPay QuickPass, Suning.com, China Mobile, and Baidu Maps were awarded se...[Details]
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Calibration of the current probe requires a fixture consisting of two coaxial converter halves. When the current probe is assembled on it, a coaxial line is formed: the outer conductor surrounding...[Details]
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The well-known mobile phone review organization DXOMARK released the camera scores of the Samsung Galaxy S20+, with a photo score of 127, a video recording score of 100, and an overall score of 118. ...[Details]
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In the 1980s, digital circuits developed rapidly, and their test tools, digital oscilloscopes, also sprung up like mushrooms after rain. Since digital oscilloscopes are much more expensive than analog...[Details]
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The inverter is a power electronic device widely used in the field of industrial automation. Its main function is to convert the input AC power into AC power with adjustable frequency to achieve sp...[Details]