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Preface
When a car is driving at high speed, tire failure is the most worrying and difficult to prevent for drivers, and is also an important cause of sudden traffic accidents. Accordi...[Details]
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1 Introduction The lamp distribution photometer is a large-scale precision optical testing equipment and an important equipment for the measurement of lamp distribution photometry. The traditional di...[Details]
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Unigroup Guoxin released its 2020 interim performance report. During the reporting period, Unigroup Guoxin achieved revenue of 1.464 billion yuan, a year-on-year increase of 24.14%; net profit attrib...[Details]
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1. The concept of impedance
In a circuit with resistance, inductance and capacitance, the resistance to alternating current is called impedance. It is usually represented by Z, and its...[Details]
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On October 23, 2021, Silicon Micro released the millimeter wave sensor life presence sensing reference design XenD101Pro. With the highly integrated, low-power, and small-volume
millimeter wave...[Details]
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Last night, foreign media Winfuture released some news about Qualcomm's new generation of wearable processors, the Wear 5100 series. It is reported that the Wear 5100 series chips may be bu...[Details]
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1. Satellite tracks
There are 24 GPS satellites orbiting the Earth in six orbits (four in each group). Generally, no more than 12 satellites are on the same side of the Earth. Most GPS receiv...[Details]
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1 Sine wave distortion
Suppose the generated sine wave is A, its power is P, and the harmonic components it contains are A1, A2, ...An, and their corresponding powers are P1, P2, ...Pn, then t...[Details]
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According to the latest report from Counterpoint, thanks to the development of smartphones and enterprise IoT devices, eSIM-based device shipments will increase from 364 million units in 2018 to near...[Details]
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1. System working principle The following figure is a time controller with adjustable timing from 1 minute to 24 hours. Its printed circuit board is shown in the figure on the right. The contr...[Details]
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The 2019 China International Intelligent Industry Expo (hereinafter referred to as "CIIE") FPGA Intelligent Innovation International Competition Finals was held today. This top international event at...[Details]
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Overview
In some occasions where unmanned automatic monitoring is required, the use of conventional image monitoring systems has some inevitable disadvantages, such as: large equipment size, high p...[Details]
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1 Introduction
Lithium-ion batteries are widely used in GSM/CDMA and high-end portable products (such as digital cameras, camcorders, etc.) due to their advantages of small size, light weight and...[Details]
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The Florida Institute for Human & Machine Cognition (IHMC) is one of the world's leading research institutes for bipedal humanoid walking motion control. Since 2015, IHMC's research, including Bost...[Details]
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Converters and filters designed to meet DO-160G, Boeing and Airbus specifications | Single-phase and three-phase isolated power factor correction solutions for commercial aircraft
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