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Even before the threat of terrorism gained worldwide attention, many public and private organizations began installing video security systems in critical infrastructure. Video secur...[Details]
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With the global advocacy of green lighting and the urgent need for energy saving, more and more lighting products are entering the era of LED light sources. As the core component of LED lamps, LED dr...[Details]
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1. LED light source has high luminous efficiency
Comparison of luminous efficiency: Incandescent lamps and halogen lamps have a luminous efficiency of 12-24 lumens/watt, fluorescent lamps have...[Details]
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I encountered some problems when I was learning to use the STM32 board. I struggled for a long time and finally solved them by reading the blogs of the masters on the Internet. I also want to ...[Details]
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//Eight-digit stopwatch based on 51 single-chip microcomputer //Development language: C51 //Selected chip: AT89S51 #include reg51.h #include intrins.h #define DIG_NONE 0xff; #define DIG_1 0x7f #...[Details]
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As a DIYer, it is very necessary to have a reliable voltage stabilizer. However, as an advanced DIYer, a voltage stabilizer that can be easily purchased from the electronics market is obviously not...[Details]
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In the spring of 2022, the "Core Power" competition once again became popular in the semiconductor circle! 8 closed-door roadshows, 32 participating projects, 24 senior commentators... Since its offi...[Details]
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How to use the simplest solution to form a network monitoring transmission system is the most urgent problem that security engineering companies need to solve in the process of building network high-...[Details]
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According to foreign media reports, the US Patent and Trademark Office recently granted Apple 59 new patents, including two patents for the Titan project, namely road stability and the next-generatio...[Details]
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In recent years, modern spectrum analyzers have made great improvements in low-frequency analog accuracy and digital signal processing (DSP) devices, especially front-end intermediate frequency (IF) f...[Details]
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According to Tianyancha, Huawei recently announced 50 patents, of which three are clearly related to the automotive field. Among these three patents, one is related to autonomous driving, and the oth...[Details]
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GPIO (General Purpose I/O Ports) is a general purpose input/output port. In layman's terms, it is a pin that can output high or low levels or read the pin's status through it - whether it is high or ...[Details]
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Oslo, Norway – December 19 , 2023 – The Board of Directors of Nordic Semiconductor has appointed Vegard Wollan as the new CEO of Nordic Semiconductor ASA. Svenn-Tore Larsen, who has led the com...[Details]
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1. Hardware Solution This design uses the 51 single-chip microcomputer principle and control theory to design the hardware circuit of the music performance controller, and uses C language for program...[Details]
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Single-phase full-bridge PWM rectifier circuit
Figure 1 Single-phase full-bridge PWM rectifier circuit
The figure shows the principle block diagram of the single-phase PWM rectifier circuit. I...[Details]
MEMS sensors
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