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USB-PD (Power Delivery) is a power supply standard based on USB Type-C, with a maximum power of 100W. Although USB-PD fast charging is becoming more and more popular, there is no test tool for fast c...[Details]
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Recently, I have a project that requires me to use a PIC microcontroller for development (I have never used it before). I encountered many problems that I don't understand. Here I summarize the probl...[Details]
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summary:
This paper introduces the impact and evaluation of cosmic radiation on the reliability of high-voltage power semiconductor devices in automotive OBC and high-voltage to vo...[Details]
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On December 13, the research minutes released by Lianrui New Materials showed that the company's product shipments are generally stable and rising, with a positive trend. In terms of product sales ...[Details]
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Recently, OFILM announced that it has successfully developed the thinnest periscope continuous zoom module in history, with a thickness of only 5.9 mm. It is reported that after more than a ...[Details]
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Environmental conditions for use:
1. Air temperature: +45~-25℃
2.Relative humidity: no more than 90%
3. Dimensions: φ48×200mm
4. Working life: not less than 15,000 times
5. Power supply vol...[Details]
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Acoustic Emission Testing of Pressure Vessels with Insulation Layers
Taking a 1000m3 ethylene insulated spherical tank in an ethylene plant as an example, full waveform digital acquisition and patt...[Details]
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On January 24, 2022, Vivo founder, president and CEO Shen Wei delivered a 2022 New Year's speech entitled "Embrace Users, Pursue the Ultimate, Create Surprises". Shen Wei said that 2021 is a year of ...[Details]
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I often encounter some annoying pseudo instructions starting with ".", such as .globl _start .balign .align .data .text, etc. The most annoying one is as follows: _undefined_instruction: .word undefi...[Details]
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Recently, Tianfu Energy Storage's world-first 128kW vanadium battery super stack has passed the test and certification of the internationally authoritative organization SGS. In the rated power 128k...[Details]
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1. Hardware interface circuit between AT89S51 microcontroller and 81C55 AT89S51 microcontroller can be directly connected to 81C55 without any external logic devices. The interface circuit bet...[Details]
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Among many capacitors, there are many types of film capacitors. Among film capacitors, CBB capacitors are the most familiar to us and are often used in electronic products. In addition to CBB film ...[Details]
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1. The wall lamp wire must be inserted into the wall
Children are naturally lively and active, and they are full of curiosity about things, especially young children, but they lack the nec...[Details]
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Recently, foreign media reported that Ford has launched a new assisted driving technology to simplify rural driving. It is reported that this new "road edge detection" function can scan the road ahea...[Details]
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According to foreign media reports, car manufacturer Jaguar Land Rover (JLR) has applied for a patent to the World Intellectual Property Office, which mainly discusses conveying various information...[Details]