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Q: When measuring a device under test (DUT) with a vector network analyzer, what is the uncertainty in the impedance and return loss (S11) measurements if the input impedance is approximately 3 ohms ...[Details]
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On November 17, 2022, the "Automotive Security Chip Trusted Safety HS Certification" was held at the China Automotive Research Institute (China Automotive Technology Research Center Co., Ltd.) Automo...[Details]
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According to foreign media AppleInsider, accessory manufacturers have begun selling protective cases for the fourth-generation iPad Air, and the rumored release date on Tuesday is very close. As ru...[Details]
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Debugging environment
Software: RealView MDK 4.03q
Hardware: JLINK v7, TQ2440 development board
When I first started learning ARM OS-free programming, I used Tianqian's TQ2440_Test project, which i...[Details]
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1. Overview
With the development of science and technology, PLC is increasingly used in industrial control. The reliability of PLC control systems directly affects the safe production and econo...[Details]
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Fault phenomenon Self-check error 704 Testing process After testing, it was found that the reason for the instrument's self-test error was that the frequency synthesis control board was damaged. ...[Details]
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In recent years, the overall process of domestic substitution of lithium battery production lines has accelerated. Domestic equipment has not only achieved a penetration rate of over 95% in domesti...[Details]
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Aixin Yuanzhi CEO Qiu Xiaoxin attended the WAIC2022 chip theme forum to discuss the "differentiated value" of AI chips To create a truly persistent and immersive metaverse space, what upgrades do e...[Details]
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China Energy Storage Network News:
On May 6, in Temuli Town, Butuo County, Liangshan Yi Autonomous Prefecture, the world's largest ultra-high voltage converter station, the ±800 kV Butuo Co...[Details]
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The National Space Science Center of the Chinese Academy of Sciences organized a summary and review meeting for the in-orbit test experiment of my country's first space gravitational wave detection t...[Details]
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STM8L ADC /*********************************************************************************** *Name: Hal_Comm_GetBatADC *Function: Get battery power information *Entry parameters: None *Export pa...[Details]
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According to foreign media reports, sensor software company Spartan announced a partnership with 4D digital imaging radar technology company Uhnder, Inc. to transform the safety systems of the ADAS (...[Details]
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2.4GHz is a commonly used frequency for cellular phones, WiFi, industrial communications, etc. In such high-precision applications, one of the challenges faced by products is how to protect the signa...[Details]
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Taycan four-point headlights Porsche's first pure electric sports car Taycan has revealed a detailed sketch of the mass-produced model. In an interview, Porsche's chief designer Michael Mauer explain...[Details]
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1 Introduction
The design and research of high-performance, high-precision microprocessors (MPUs) suitable for national defense and civilian needs has become extremely important and urgent. ...[Details]