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(4) The equivalent average value Rc1 of Rc (ESR of capacitor C)
is known. The current iC flowing through capacitor C is the ripple component in the inductor current. As shown in the f...[Details]
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1.
History of
LED
50 years ago, people already knew
the basic knowledge that
semiconductor
materials can generate light. In 1962, Nick Holonyak Jr. of General Electric
...[Details]
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According to Taiwanese media reports, Chunghwa Picture Tubes, a subsidiary of Taiwan's Tatung Group, recently declared bankruptcy. The report said that Chunghwa Picture Tubes has not paid wages for A...[Details]
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In the past two years, a kind of transportation tool called a somatosensory vehicle (or a balancing electric vehicle) can often be seen in public places. Due to its convenience and flexibility, it is ...[Details]
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The various methods of using a multimeter to detect the polarity, tube type and performance of medium and low power transistors are basically applicable to the detection of high power transistors. Ho...[Details]
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Data released by the China Association of Automobile Manufacturers showed that domestic automobile production and sales in May were 2.04 million and 2.128 million units, down 8.7% and 5.5% month-on-m...[Details]
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1. SDK configuration mqtt_demo enable On the premise that the system can access the Internet through wifi (refer to "Lianshengde W801 Series 2-WIFI one-click network configuration, information preser...[Details]
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To understand the similarities and differences between single-chip microcomputers and PLCs, we must first clarify what single-chip microcomputers are and what PLCs are. To this end, it may be helpful ...[Details]
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Apple held a spring new product launch conference, bringing new colors for the iPhone 12 series, AirTag, iMac, iPad Pro and other new products. Image source: Apple official website The iPhone ...[Details]
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The 2019 Nobel Prize in Chemistry was awarded to American scientists John Goodenough, Stanley Whittingham and Japanese scientist Yoshino Akira for their contributions to the development of lithium-...[Details]
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At the AWE 2019 conference held in Shanghai not long ago, Huawei's consumer business CEO Yu Chengdong said that the sales target of Huawei + Honor in 2019 is 250-260 million units, becoming or approa...[Details]
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Overall, we can see the confrontation of several strategies: One is the previous European 48V+PHEV full-line promotion + a small amount of pure electric. This route has been discussed at the VDA be...[Details]
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1 Introduction Based on the discussion of the basic bandpass sampling theorem, this paper analyzes the spectrum shift characteristics of the bandpass signal sampling due to the undersampling rate...[Details]
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Air traffic controllers primarily use secondary radar to track the position of commercial aircraft, using real radar only if the transponder is not installed, is turned off, or is broken.
The se...[Details]
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TechInsights released the "Automotive Industry Outlook 2025" report, pointing out that the automotive industry will present several transformative trends next year, including the rise of electric v...[Details]
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