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White light LED focusing system - Micro Lens
1. Design Objective:
With the development of light-emitting diodes, the luminous efficiency has also been greatly improved c...[Details]
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On October 19, the 2021 China Society of Automotive Engineers Annual Conference and Exhibition (SAECCE2021) officially opened at the Shanghai Automobile Exhibition Center. It is reported that SAECCE ...[Details]
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Denial of service is one of the common vulnerabilities in web servers, which may be caused by reasons such as overlong URLs or malformed HTTP Headers. If the web server handles these requests in an i...[Details]
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Recently, the authoritative market research organization IHS Markit issued the "2020 Global Household Energy Storage Market Share List", and Wotai Energy ranked in the top 5. This industry ranking ...[Details]
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Electronics companies have a tradition of launching any new type of product followed by a years-long battle in which customers pledge allegiance to a format or operating system or some other technica...[Details]
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On October 7, the Sichuan Provincial Department of Economics and Information Technology and 10 other departments issued the "Sichuan Province's Work Plan for Further Promoting the Comprehensive Uti...[Details]
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There are generally three methods for measuring leakage current: 1. Direct leakage current measurement 2. Differential leakage current measurement 3. Equivalent leakage current measurement However,...[Details]
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The nitrate nitrogen online analyzer is a new generation of fully automatic nitrate nitrogen online analyzer based on the Chinese national standard method redox photometry. The nitrate nitrogen in ...[Details]
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On July 15, the "6th Supply Chain Innovation Technology Exhibition" of China FAW was grandly held at the headquarters of China FAW in Changchun. It is reported that Lishen Battery was invited to at...[Details]
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PUX is a company that develops image recognition software for driver monitoring systems (DMS). Its system FaceU has been adopted by many automakers and auto parts suppliers for passenger car driver m...[Details]
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On August 7, Reuters reported that people familiar with the matter said that Samsung Electronics' fifth-generation 8-layer HBM3E product has passed Nvidia's test and can be used in the latter's art...[Details]
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There are two ways to operate stm32: using official library functions (see stm32 development environment MDK+ library file configuration ) and directly operating registers. The method of directly o...[Details]
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Solar photovoltaic power generation can directly convert solar energy into electrical energy. It is a new technology for obtaining clean and low-carbon electricity. It is also a very important and pro...[Details]
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Future Apple AR devices, such as "Apple Glasses," may incorporate holograms to make moving around in a virtual environment feel more natural. Apple already has a number of patents and patent ap...[Details]
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The basic working principle of PWM converter
The basic working principle of PWM converter
The working principle of PWM converter is shown in the figure. Due to the increase of switching freque...[Details]