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If the power supply system cannot output the specified current, the voltage exceeds the allowable fluctuation range, and the noise voltage is higher than the allowable value for more than 10 second...[Details]
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Preface Because of the friendly arm we used, it completely solidified our boot loader. We cannot stop or interrupt its process. We cannot enter the boot loader and cannot modify it. Our normal boot s...[Details]
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IntroductionLED
dot matrix display screen can display changing numbers, text, graphics and images, with wide dynamic range, high brightness, long life, stable and reliable operation. It has bec...[Details]
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At the beginning of 2020, due to the large-scale outbreak of the novel coronavirus pneumonia, all walks of life suffered huge impacts and losses. In the semiconductor storage industry, due to the out...[Details]
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After multiple charge and discharge cycles, the capacity of lithium-ion batteries will decrease, shortening the battery life. According to foreign media reports, the Gwangju Institute of Science and ...[Details]
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1 Introduction
Phase failure and phase sequence protection is an indispensable part of the AC motor starting equipment in high-power three-phase AC motors and irreversible transmission equipm...[Details]
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According to people familiar with the matter, Baidu is considering producing its own electric vehicles and has been in talks with automakers. It has also held preliminary talks on joint venture proje...[Details]
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1. Capacitor charging and discharging circuit and its voltage and current waveforms
The basic principle of an LED charge pump driver, also known as a switched capacitor converter, is to us...[Details]
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AMD has revealed their new and upcoming Radeon RX 6000 series, utilizing the second generation architecture which they call RDNA2. This new GPU architecture will power both standalone PC graphics c...[Details]
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Samsung Electronics maintained its leading position in the European smartphone market in 2021, but it faced more intense competition from Apple in the United States and Xiaomi in China, losing its le...[Details]
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When reading routines, I often see such code before the main function starts, and I know it is used for debugging. But I am not very clear about it.
int main(void) {
#ifdef DEBUG debug();
#endi...[Details]
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Compared with the complete layout of NVIDIA Turing family, AMD Navi series still lacks a lot. Only the high-end RX 5700 series is supporting the scene. The RX 5500 series positioned in the mainstrea...[Details]
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LED lighting, or light-emitting diode lighting, is an original component that uses semiconductors to emit light. It has the advantages of high electro-optical efficiency, small size, long life, low...[Details]
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In mid-July this year, IKEA UK physical store began to set up a new area - "Solar Store", where photovoltaic inverters produced by Jiangsu GoodWe Power Technology Co., Ltd. were sold. "Today's sola...[Details]
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Last time I used the 89C51 microcontroller , the K1200 programmer had some problems. I didn't know whether it was the programmer or the microcontroller that had problems, so I made a simple 89C51 pro...[Details]