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Portable Microphone Preamplifier
Parts:
P1______________2K2 Linear Potentiometer
R1,R2,R3______100K 1/4W Resistors R4______________8K2 1/4W Resistor R5_____________68R 1/4W Resistor R6...[Details]
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The AT89S51 microcontroller adopts a bus structure, which makes expansion easy to achieve. The AT89S51 microcontroller system expansion structure is shown in the figure below. As can be seen f...[Details]
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On September 26, the Shenzhen Development and Reform Commission issued the "Management Measures for New Energy Vehicle Charging and Replacement Facilities in Shenzhen", which clearly stated that ac...[Details]
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There are suspected new changes in the field of power batteries. On March 6, Gasgoo learned that there were media reports that some employees had resigned due to insufficient orders from China Airl...[Details]
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The Chinese power of power batteries is making a splash in the global market. Data shows that from January to August this year, global electric vehicle battery consumption was 287.6GWh, a year-on-...[Details]
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——Policy interpretation of the "Notice of the National Energy Administration on Promoting the Grid Connection and Dispatching of New Energy Storage"
China Southern Power Grid Corporation Power...[Details]
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On May 13, 2021, XINGHUAZHANG, a leading company in EDA (integrated circuit design tools) intelligent software and systems, announced today that it has completed a Pre-B round of financing of more th...[Details]
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The Netherlands Authority for Consumers and Markets (ACM) today announced an investigation into contactless platforms on smartphones and the access that payment apps have to NFC functionality. Acco...[Details]
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According to official news from Sanan Integrated Circuit, Sanan Integrated Circuit recently obtained a surface acoustic wave (SAW) filter order from FIH Mobile, a world-renowned mobile phone OEM manu...[Details]
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According to Windowslatest, Microsoft hasn't made many changes to the Android experience on the Surface Duo compared to the Nokia X series, but Microsoft is indeed making some useful adjustment...[Details]
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According to official news from Tyco Tianrun, on July 22, Tan Xiaoping, member of the Standing Committee of the Changsha Municipal Committee of the Communist Party of China and Minister of the Munici...[Details]
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As Apple's two-year transition period for Mac computers from Intel to its own chips is coming to an end, Intel has poached Apple's chief chip designer for the M1. Jeff Wilcox, Apple's former director...[Details]
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Reference sources are widely included in analog circuits and are key components in many system circuits. Their electrical characteristics will directly affect the electrical characteristics of...[Details]
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When it comes to small-signal modeling of the power stage, the boost regulator has two disadvantages compared to the buck regulator: first, it has a right-half-plane (RHP) zero that is determined b...[Details]
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A 4-phase, 300W boost power supply based on the TPS40090 multiphase buck controller is designed to handle the 500W peak bursts typically seen in audio applications. Typically, in a multiphase buck co...[Details]