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1. Introduction In the SPWM full-bridge inverter, in order to achieve electrical isolation between input and output and obtain the appropriate voltage amplitude, a base frequency AC transformer is...[Details]
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•DRAM: Its basic components are small capacitors that can hold charge on two plates, but need to be recharged (refreshed) regularly, otherwise the data will be lost. Disadvantages: Slow access spee...[Details]
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The ground resistance tester is a commonly used instrument for testing and measuring ground resistance. It is also an indispensable tool for electrical safety inspection and grounding project complet...[Details]
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Reactive compensation is one of the effective measures to improve voltage quality and reduce network loss. The method is to connect capacitors in parallel to the inductors in the inductive cir...[Details]
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"Zheneng Automobile" and "2030 Mobility Research Laboratory" jointly track and analyze the development trends of the U.S. automobile and technology industries. With the implementation of policy sub...[Details]
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introduction
TI's C2000 series DSP is widely used in industrial automation, motor control, and industrial production with its excellent performance and rich on-chip peripherals. TMS320F...[Details]
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At present, the development of mobile phones has become the common focus of the global electronics industry. In addition to voice and camera functions, the next goal of mobile phones is obviously to i...[Details]
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Core board Exynos4412 has two packaging forms. The POP packaged chip contains 1GB of memory, so there is no need for external DDR expansion, which can greatly save PCB area and has better power cons...[Details]
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introduction
With the rapid development of embedded systems, the use of ARM as a hardware platform and Linux as a software platform has attracted widespread attention. Graphical user interface...[Details]
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A Hong Kong compatriot who has been working and living in Guangzhou for many years asked me a question. He said that he has two iPhones, one ID is registered in Hong Kong, and the other ID is regis...[Details]
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The servo drive system is an automatic control system that uses mechanical position or angle as the control object, such as CNC machine tools. The drive motor in the servo system is required to hav...[Details]
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Recently, foreign media exposed a set of renderings of Apple's second-generation iPhone XR, created by designer Hasan Kaymak (video). The new phone has five color schemes, among which the shiny...[Details]
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As one of the most important core components of the RF front end of wireless communication systems, the market demand for filters and duplexers continues to grow. As one of the domestic suppliers o...[Details]
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Currently, users have an increasing demand for front-facing camera functions in mobile terminals. As a result, single front cameras, dual front cameras and even more front cameras have appeared on sm...[Details]
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According to foreign media reports, an international research team led by chemists from the University of Glasgow in the UK and battery testing experts from the Helmholtz Institute Ulm in Germany h...[Details]