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Antenna testing technology has developed to the point where its measurement methods involve frequency domain, time domain, space domain and digital domain. However, the commonly used measurement metho...[Details]
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This is the design of the 51 single-chip basketball scorer I made before. It took me a week. The attachment includes the source code, PCB schematic, proteus simulation file and relevant documents of ...[Details]
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As the name implies, high-power LED street lights are street lights with a power of more than 30 watts and using new LED semiconductor light sources. At present, the standard for LED street lights ...[Details]
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1. Transformer tester: measures the error between the standard transformer and the transformer under test, and displays the working current.
2. Standard current transformer: used as a standard...[Details]
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The importance of low noise comes from the industry development trend of battery technology and low noise and low voltage applications. Low voltage must be truly achieved to keep the power in mobile ...[Details]
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MPEG-4 is an emerging video standard. Its flexible error correction capability and ability to support small screens have attracted wide attention in the mobile communication market. Almost all mobi...[Details]
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December 30 news, online shopping is always more expensive than others? Booking a hotel with a new number is cheaper than the old number? Taxi prices for the same route are getting higher and higher?...[Details]
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On June 30, the Shanghai Stock Exchange officially accepted the application for listing on the Science and Technology Innovation Board of Jiangsu Huasheng Lithium Battery Materials Co., Ltd. (hereina...[Details]
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1. Extended keyboard circuit
AT89C2051 is a 20-pin 8-bit single-chip microcomputer produced by ATMEL in the United States using CMOS technology. It has 2k bytes of flash ROM and 128 bytes of on...[Details]
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There are two main detection methods: The first is to use the ohmmeter test method, which is simple to operate and the test results can basically explain the problem; The second is to use the replace...[Details]
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On July 20, Lingyun announced that the company recently received a notice from a mainstream Chinese brand car company and officially obtained the battery shell lower shell project of the car company. ...[Details]
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introduction
Traditional relay detection and protection functions are mostly completed by electromagnetic devices, which have long action time and low protection accuracy, and can no longe...[Details]
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Electric vehicles (EVs) will account for 13% of global auto sales in 2022 and are expected to account for 30% of global auto sales by 2030. The industry needs to continue to increase research and dev...[Details]
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On March 10, Growatt Solar Summit held its first stop in Baoding, Hebei in 2017. The event was mainly a small professional meeting. We provided precise services and professional training to each cu...[Details]
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01. Introduction to vehicle-mounted thermal imaging
The vehicle-mounted thermal imaging system is an effective technology for enhancing the driver's vision. The thermal imaging system passivel...[Details]
PCB Design
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