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This article takes an incorrect design scheme as an example, deeply analyzes the charging and discharging, polarization and dynamic changes of polarization voltage of lead-acid batteries, deduce th...[Details]
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PIC microcontrollers are becoming increasingly popular in China. This article introduces some experiences and techniques in software and hardware design during the development of MicroChipPIC series ...[Details]
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For detailed information on the connection between the I/O interface and the LCD pins, see the source code comments. 12864 source code //12864LCD display program with Chinese character library #in...[Details]
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STMicroelectronics (ST) recently released its first quarter 2024 financial report, with revenue of US$3.47 billion, gross profit margin of 41.7%, operating profit margin of 15.9%, and net profit of...[Details]
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Liquid crystal display
(LCD)
panels have been popular since the early 1990s. Their main application products have expanded from notebook computers to desktop computer screens since the second hal...[Details]
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1 Introduction
The National College Students "Freescale Cup" Intelligent Car Competition, held in China since 2006, integrates science, fun and appreciation. It is a scientific and technolog...[Details]
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Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[Details]
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introduction 为了以更低的功耗获得更高的速度和更佳的性能,要求 电源 电压越来越低,瞬态性能指标越来越高,因此对 开关电源 提出了越来越高的要求。用原有的电路拓扑及整流方式已不能满足现在的要求,为了适应IC芯片发展的需要,人们开始研究新的电路拓扑。因为输出电压很低,所以,同步整流自然成为这种低压大电流电源的必然选择,考滤到产品的复杂程度及产品可靠性,同步整流一般选择自驱动同步整流,...[Details]
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Today's vehicle electrical system engineering is becoming increasingly complex due to electrification and autonomous driving features. Electric powertrains (EPTs) generate high levels of broadband ...[Details]
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Hongli Zhihui recently issued an announcement stating that its subsidiary Guangzhou Laidiya Lighting Co., Ltd. has recently been granted two invention patents and obtained relevant patent certificate...[Details]
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With the development of the new four trends in automobiles (intelligence, electrification, networking, and sharing), intelligent driving of automobiles is gradually entering the popularization stag...[Details]
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1. Introduction
The piezoelectric effect and inverse piezoelectric effect of piezoelectric crystals have been widely used in the field of science and technology. The surface acoustic wave device pr...[Details]
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Digital filters are used in discrete systems; analog filters are used in continuous-time systems and can also be used in discrete-time systems, such as SC (switched capacitor) filters.
A digit...[Details]
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Huawei was caught up in the Sino-US trade conflict, and US President Trump issued a ban on Huawei. But Eman Liu, president of Huawei's global transportation business unit, said the company's aviation...[Details]
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On October 26, the JinkoSolar Hainan 200,000-kilowatt integrated source-grid-load-storage project undertaken by China Energy Construction Jiangsu Electric Power Construction No. 1 Company was conne...[Details]