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LED stroboscopic effect refers to two concepts. One is stroboscopic: that is, the depth of the fluctuation of the luminous flux of the electric light source. The greater the fluctuation depth, the ...[Details]
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With the launch of the "12th Five-Year Plan", urban construction planning has risen from safe cities to smart city development planning, and intelligent transportation will also become a related in...[Details]
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0 Introduction
电源装置是电子电气设备中所不可缺少的部件,开关电源以其效率高、体积小、重量轻、电压适应性好等优点,受到相关行业的青睐。但目前存在的缺陷是电磁骚扰大,对环境或对其他设备造成不利影响。目前对于可变负载的开关电源,笔者所了解到的产品最低输出噪声电压也在70 mV以上。设计低电磁骚扰的开关电源,也就成了许多设计人员的希望,为此提出了种种方法。本例设计要点不同于...[Details]
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In the past 2021, the entire Chinese mobile phone market has undergone a dramatic change. The original "Huawei, Xiaomi, OPPO, Vivo and Apple" five-legged tripod collapsed with a ban, and the power of...[Details]
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1. Experimental tasks As shown in Figure 4.13.1, the P0 port of the AT89S51 microcontroller is connected to the font code pen segment of the dynamic digital tube, the P2 port is connected to ...[Details]
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According to Nikkei, China's second-largest mobile chip developer Unisoc is ready to launch 5G chipsets in 2020, much earlier than previously planned. This will allow it to catch up with the world's ...[Details]
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Gas supplied by manufacturers to some of TSMC's plants in South Taiwan Science Park is suspected to be contaminated, and the impact has attracted much attention from the market. TSMC said today (31st...[Details]
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The microcontroller source program is as follows: //////////////////////////////////////////////////////////////////////////////// // // PIC16F877 + HC-SR04 + LCD03 example // Written Octobe...[Details]
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“It’s time to rewrite the rules of the game.”
Just now, the king of cockpit chips for smart cars launched the latest smart car chip platform - it can capture both cockpit and driving sim...[Details]
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Because the ARM server I worked on at my internship company required scheduled restarts, I looked up some relevant information today. I found that there was no specific method for my current develo...[Details]
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Ford plans to make its new hands-free highway driver assistance system BlueCruise available to consumers later this year after spending 500,000 miles developing and testing the system in the U.S. an...[Details]
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Use of AVR serial port getchar(), getchar(), printf() and other functions
AVR microcontrollers can use getchar(), getchar(), printf() and other functions, and their operations are connected to t...[Details]
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Heart sound identification refers to a technology that uses human heart sound signals for identity identification. Heart sound is a reflection of the mechanical movement of the heart and cardiova...[Details]
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Currently, more than 500 operators in more than 170 countries hold spectrum licenses for low-band LTE or 5G Nearly 400 operators are known to have launched LTE or 5G networks using low-band spectru...[Details]
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1 Introduction
The core is an important part of the electromagnetic component in the power supply and plays an important role in its performance. The design of the core of the electromagnetic ...[Details]