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This is a very simple LED flash light with only three components: the flash IC LM3909, the LED indicator, and the electrolytic capacitor.
The power supply voltage is 1.5V, so it can be p...[Details]
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Introduction: In recent years, solid-state LED lighting fixtures have become widely popular. The author here attempts to analyze the complexity of LED color technology and how to control it. In recen...[Details]
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Car alarms, access control systems, automated production lines, material management systems, large supermarkets... Today, radio frequency identification (RFID) is almost everywhere, marking the ac...[Details]
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The so-called copper coating is to use the idle space on the PCB as the reference surface and then fill it with solid copper. These copper areas are also called copper filling. The significance of ...[Details]
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In 2010, Chimei Electronics merged with Innolux Corporation and Toppoly Optoelectronics and changed its name to Chimei Electronics. Since then, the company's products have spanned various LCD panel m...[Details]
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Nuvoton's N76E003 can replace STM8S003F3P6 pin-for-pin, and it is very cheap, so it is the best time to use it as a replacement. Let's start preparing materials and building the environment: 1. Go ...[Details]
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Porsche, a premium sports car manufacturer, has launched the small SUV "Macan". The company has taken advantage of its position as a subsidiary of the Volkswagen Group and adopted the chassis ...[Details]
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1 Introduction
Heat flow, also known as heat flux density, refers to the amount of heat (vector) transferred per unit area per unit time. Its characterization is the amount of heat transfe...[Details]
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Silicon Labs (also known as "Silicon Technology") recently expanded the Si539x jitter attenuator series, and its new device models have a fully integrated reference clock, enhanced system reliability...[Details]
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IntroductionUWB
is a carrier-free communication technology that uses nanosecond to sub-nanosecond non-sinusoidal narrow pulses to transmit data. It occupies a wide spectrum range and is suita...[Details]
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On February 16, technology media Android Police brought a hands-on review of the Samsung Galaxy S22 Ultra, saying that "the Galaxy S22 Ultra is a universal phone." Android Police pointed ou...[Details]
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With the increasing application of electronic technology and computer technology in automotive electronics, traditional mechanical instruments have been gradually replaced by electronic instruments...[Details]
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Recently, the Chinese Academy of Sciences announced that Chinese scientists have developed a new type of vertical nano-ring gate transistor, which is considered to be the main technical candidate for...[Details]
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Since Tesla was localized, the price has been dropping, which has made many old car owners dissatisfied. However, it now seems that the previous price reduction is not the bottom, and the price of do...[Details]
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0 Introduction
According to the principle of aerodynamics, when an object moves at supersonic speed, shock waves will be generated because the speed of movement is greater than the local ...[Details]
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