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1.UV LED (Ultraviolet LED): (1) Low UV: 250nm-265nm-285nm-365nm, and now it can reach 250nm-410nm. These are INGaN/GaN material carbides. These UV rays can kill all bacteria in the water, and...[Details]
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The typical circuit of the switching power supply made of UC3842 is shown in Figure 1. Overload and short circuit protection is generally achieved by connecting a resistor (R4) in series with the s...[Details]
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According to the latest report from DigiTimes, the chips used in the next-generation iPhone will be based on the "4nm" process, which is more advanced than the 5nm process used by the iPhone 13. The...[Details]
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Recently, the Shenzhen Stock Exchange issued a document stating that based on in-depth research on industry characteristics and summary of regulatory experience, it has formulated and issued four ind...[Details]
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Netbooks continued to lead the trend last year and have become the latest development concept. New laptops and netbooks are moving towards being thin and light, and the backlight of their panels is...[Details]
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The password lock is based on the STC89C52 microcontroller, plus the necessary hardware parts, to achieve the setting, storage, and detection of passwords, thereby controlling the closing of the circ...[Details]
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1 Introduction
This article aims to study MPEG-4 video decoding technology based on ARM microprocessor, which is mainly used in handheld mobile devices. Using embedded systems to implement MPEG...[Details]
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1. Instrument Model Keysight Network Analyzer N5244A. 2. Fault phenomenon After the instrument is turned on, the baseline becomes chaotic and an error message is displayed. 3. Inspection and mainte...[Details]
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Low-noise, high-efficiency PWM step-down conversion power supply circuit made of MAX887H
As shown in the figure, this is an adjustable step-down power supply with a high-efficiency, low-noise PW...[Details]
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NVIDIA announced that it will hold the GTC 2024 conference in San Jose from March 18 to 21.
It is expected that more than 300,000 people will attend the conference in person or register onlin...[Details]
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In 2010, American automakers introduced a novel feature that allows car owners to control the locks and start the engine from anywhere in the world via a smartphone. This connectivity relies on the c...[Details]
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A spectrum analyzer, also called a spectrum analyzer, is an instrument used to study the spectrum characteristics of electrical signals. So what preparations do we need to make before operating a spe...[Details]
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A curve is a graphical display of a set of X and Y corresponding values. Usually, the Y value in the curve chart represents the data value, while the X value represents the time. The waveform chart...[Details]
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Dynamometer is a very important force measuring instrument for testing push and pull force. Many dynamometer users have more refined performance requirements for dynamometer products, so the structur...[Details]
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We all know that the three-phase stator winding of the motor generates a rotating magnetic field through electric current. According to the principle of magneto-electric induction, the motor casing...[Details]
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