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Vehicle recognition technology is an important research topic in the field of intelligent transportation. It is widely used in the fields of automatic toll collection at bridge intersections, unman...[Details]
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Apple announced that its chief designer Jony Ive will resign within the year. Ive has worked at Apple for more than 20 years and is regarded as one of the company's leading figures. He is responsible...[Details]
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Although new energy vehicles are developing rapidly in my country, especially in the past two years, they have entered a period of rapid development! However, there are still quite a few people who...[Details]
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On July 30, the 220 kV reinforcement project of Lishui Southwest Power Grid, undertaken by China Energy Construction East China Construction Investment Zhejiang Thermal Power, officially started.
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A global chip shortage has disrupted production in key industries from automobiles to smartphones. Samsung Electronics recently revealed plans to triple its foundry capacity by 2026, but the market i...[Details]
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Why did Huawei have such a dramatic plot in 2019? It all started when they became China's leading technology company. Did Huawei develop smoothly in 2019? Rather than saying it was smooth, it should ...[Details]
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The School of Materials and Engineering of Tianjin University has recently made a major breakthrough in green batteries, developing an aqueous zinc-based battery with high safety, high energy densi...[Details]
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LED lighting is the mainstream of energy saving in the world, and high-power LED lighting is the mainstream trend of lighting systems in the future. High-power LED has the characteristics of high b...[Details]
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Over the past decade, CMOS technology for microcontroller and microprocessor systems has undergone significant changes. Current demands for smaller systems, longer battery life, and overall bill of m...[Details]
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On September 14, MeiG Smart's official WeChat account announced that China Unicom, as a leading company in the operator's Internet of Things, has recently launched a bidding process for the Unicom In...[Details]
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The US Department of Energy (DOE) announced on Monday $3.1 billion (€2.9 billion) in funding to support the production and preparation of cells and components to cope with the rapid gro...[Details]
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1. What is a rack and pinion drive system?
The rack and pinion drive system consists of a rack (or "linear gear") and a pinion (or "circular gear"). The working principle is to convert the rot...[Details]
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On December 5, First Electric Network learned from foreign media that BMW's sixth-generation Gen6 lithium-ion battery pack will likely be unveiled together with the new Neue Klasse platform at CES (In...[Details]
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1. System clock of S3C2440 1.1、Several frequencies of 2440 Laptop CPU can be 1G 2G, memory 133M, etc. 2440CPU:400MHz -------FCLK-----CPU SDRAM: 100M/133M---- HCLK---- storage area controller,...[Details]
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LED aluminum substrate
Features, structure and function
led的散热问题是LED厂家最头痛的问题,不过可以采用铝基板,因为铝的导热係数高,散热好,可以有效的将内部热量导出。铝基板是一种独特的金属基覆铜板,具有良好的导热性、电气绝缘性能和机械加工性能。设计时也要儘量将PCB靠近铝底座,从而减少灌封胶...[Details]