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1 Introduction
An important direction of the development of modern switching power supplies is the high frequency of switches, because high frequency can greatly reduce the size and weight of ...[Details]
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What exactly is MP4? Just like people refer to MP3 players as MP3, MP4 portable video players are also referred to as MP4. Of course, just as MP3 is not MPEG3, MP4 is not MPEG4. The names they use ...[Details]
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According to a review report released by the White House on Tuesday (June 8), the US Department of Commerce pointed out that large-scale public investment in semiconductor manufacturing has enabled K...[Details]
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R1
1.5K ¼ W
R2,R3
0.1 Ohm 10 W
R4
270 Ohm ¼ W
R5
680 Ohm ¼ W
...[Details]
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Various media characteristics often encounter some special situations in the flow meter selection, such as dirty media, corrosive liquids, high temperature and high pressure steam, etc. These problem...[Details]
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In order to increase the safety of buses, a bus safety system based on STC89C52 single-chip microcomputer with anti-overload and anti-collision functions is proposed. By studying the ultrasonic rangi...[Details]
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At present, we usually use keil4 to write 51 programs, and many programs for STM32 and other microcontrollers use keil5. So how to make 51 and STM32 programs compatible in keil5, eliminating the tedi...[Details]
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On September 22, Li Yang Chip issued an announcement on the termination of listing of Guangdong Li Yang Chip Testing Co., Ltd.'s shares. The announcement shows that recently, Li Yang Chip submitted...[Details]
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Fluke Networks has introduced an economical entry-level copper cable certifier, the FLUKE DSX-600 CH, which can improve the productivity of small-scale cable installation work and increase the return...[Details]
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1. Introduction LED has developed rapidly in recent years due to its long service life, wide viewing angle, high brightness, and colorful features. It is the fourth generation of new energy afte...[Details]
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This year will be the first year for CATL’s Kirin battery to be put on the market. Judging from official news, the 2023 models of Ji Krypton and Wenjie will be equipped with this culmination of thr...[Details]
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Recently, many websites have been reporting on a "high-voltage LED", believing it to be a new type of LED with many advantages. Some even believe that it will make "today's low-voltage LEDs fade out ...[Details]
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With its stock price rising recently, NIO has clearly crossed the financial red line. And Li Bin, who seemed to have just taken a breath, immediately started the next stage of autonomous driving rese...[Details]
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There is still half a month before the release of the OnePlus 7 series. Liu Zuohu, CEO of OnePlus Technology and founder of OnePlus mobile phones, began to frequently preheat the new product on Weibo...[Details]
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Learning ARM assembly is very necessary. Learning ARM assembly is not to write programs in assembly in the future, but to understand and modify it. Because in the later projects related to the kern...[Details]
PCB Design
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