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A few days ago, I saw a set of statistics: the total amount of data of the State Grid has reached about 5PB. If it is stored in ordinary DVD discs, the stacking height exceeds 1,500 meters, includi...[Details]
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The three commonly used isolation technologies are photoelectric isolation, electromagnetic isolation and capacitive isolation. The three usually cannot achieve the best in terms of power consumpti...[Details]
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As electronic components become more numerous and more expensive, more fuses and relays are needed in the system to protect the system from shocks. However, the reliability of mechanical components i...[Details]
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The PN junction inside the LED is inevitably affected by electrostatic induction and generates induced charge when it is used in the manufacturing, assembly screening, testing, packaging, storage, t...[Details]
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As an important accessory of modern technology equipment, wireless chargers have gradually become standard configurations for smartphones and other portable electronic devices. However, during use,...[Details]
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From nickel-metal hydride batteries to lithium batteries and lithium polymer batteries , the battery life of digital products such as mobile phones may not be satisfactory, but we also need to look...[Details]
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Early stage investment in photovoltaics is a very interesting topic. Here are some of our thoughts:
Similar to lithium batteries, photovoltaics are not a new thing. The entire industry has bee...[Details]
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introduction In the process control of modern process industry, analytical detection has the characteristics of online, multi-component and real-time detection, and has strict requirements on a...[Details]
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With the rapid development of modern communication technology and positioning technology, especially the increasing popularity of wireless mobile communications and global satellite positioning GPS...[Details]
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51 microcontroller is the collective name for all microcontrollers compatible with the Intel 8031 instruction system. The ancestor of this series of microcontrollers is Intel's 8004 microcontroller...[Details]
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According to foreign media 91mobiles, the real photos of AirPods 3 may have been exposed recently. From the photos, AirPods 3 adopts a design similar to AirPods Pro. According to previous repo...[Details]
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introduction
Time delays for audio are traditionally implemented using delay lines or charge-coupled devices, which are widely used in consumer equipment. The most common is the reverberation sy...[Details]
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In recent years, the high brightness light emitting diode (HB-LED) market has developed rapidly. The LED light efficiency has been increasing, and the average cost per lumen of light output has con...[Details]
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Model building background
The three-phase permanent magnet synchronous motor (PMSM) is a widely used motor. The motor body is also a strongly coupled, complex nonlinear system. The MATLAB powe...[Details]
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CNC machine tools are highly automated machine tools that can automatically complete various complex processing tasks according to preset programs. In the programming of CNC machine tools, M codes ...[Details]
Power technology
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