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At 01:10 on January 18, 2020, with the No. 1 and No. 2 main transformers closing and charging normally, the first substation invested and constructed by Kunming Power Distribution Co., Ltd. (herein...[Details]
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This is the SCH library component of UC3842 that I drew while learning. There are two packages, 8-pin and 14-pin. It can be seen clearly when designing the schematic diagram to avoid mistakes. I ho...[Details]
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Recently, a friend asked me that he bought an oscilloscope with a nominal refresh rate of 200Kwfms/s. He was very curious and asked me if I could measure it. I told him that I could. Compared with th...[Details]
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Hand-operated self-generating flashlight
1. Energy-saving product, built-in micro power generation system using Faraday principle, just press the power generation handle lightly, it can power ...[Details]
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On October 12, Gasgoo learned that Haomo Zhixing released three intelligent assisted driving products, HP170, HP370 and HP570. It is reported that the above three products focus on "ultimate cost p...[Details]
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Samsung Electronics is expected to invest more than $30 billion in its semiconductor business for the first time in 2021 to stabilize its memory chip production capacity and expand its foundry busine...[Details]
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On March 30, the rumored foldable screen smartphone from Royole Technology has been "cooled down". Today, Liu Zihong, chairman and CEO of Royole Technology, said at an event that the phone is already...[Details]
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In the early morning of February 17th, Beijing time, Nvidia today announced the company's fourth quarter and full-year financial report for fiscal year 2022. The report shows that Nvidia's revenue in...[Details]
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On June 28, the Beijing Municipal Administration for Market Regulation issued an announcement regarding "Beijing Newman Jiy Technology Co., Ltd.'s voluntary recall of defective products (mobile ...[Details]
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Loop Resistance Tester Principle The loop resistance tester adopts the current-voltage test principle (also known as the four-wire method). The current source of the loop resistance tester load...[Details]
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On October 16, the 2020 Yangtze River Delta High-tech Audiovisual Expo kicked off in Nanjing, and the 9th Radio and Television Media Industry Forum and the 7th China Radio and Television Zijin Forum ...[Details]
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Let's take a look at the lcd.c file in 2440test static void PutPixel(U32 x,U32 y,U16 c) { if(x SCR_XSIZE && y SCR_YSIZE) LCD_BUFFER = c; } It is easy to find that the function of dis...[Details]
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1 Introduction The printed circuit board drilling machine is an important equipment in the production of printed circuit boards. With the improvement of electronic product processing requirements, lo...[Details]
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LG Energy has developed the NCMA quaternary lithium battery, which will be delivered in large quantities to Tesla cars in 2021. LG Energy said the battery will be delivered in the second half of 20...[Details]
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Auto-coupling step-down starting and soft starting are two common motor starting methods. They each have their own advantages and disadvantages and are suitable for different application scenarios....[Details]
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