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introduction
Software quality is the life of business. Software testing projects have become more complex and difficult than ever before. In 1979, Glenford Myers proposed the concept of "the purpos...[Details]
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New energy vehicles mainly rely on electric drive systems to control the vehicle motor and realize some auxiliary functions. The battery pack of new energy vehicles is the source of electric drive....[Details]
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At the 2019 CES Asia, technology and product displays in the automotive field occupied half of the exhibition, and the automobile exhibition hall was expanded to two. Some people even jokingly said t...[Details]
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Apple has formed a dedicated communications research team to work on new ways to beam data, such as internet connections, directly from satellites to user devices, Bloomberg's Mark Gurman repo...[Details]
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51 MCU: A/D analog-to-digital conversion experiment 1. Experimental Content Use the 0809 on the experimental table to do the A/D conversion experiment. The W1 potentiometer on the experimental table ...[Details]
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Quectel Communications announced that it has joined hands with Qualcomm Technologies to jointly support the innovation of the Hongqi E-HS9 model in the field of intelligent connected technology. The ...[Details]
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The 125W Class D subwoofer power amplifier circuit designed with the newly launched LM4651 and LM4652 of National Semiconductor is shown in the figure. The output power of the amplifier is 125W under...[Details]
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At 1:41 and 1:43 a.m. today, two strong earthquakes of magnitude 6 or above occurred in the waters off Hualien, Taiwan. In response, according to Taiwan media United Daily News, the wafer foundry Wor...[Details]
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An ammeter is connected in series to the circuit being measured to measure its current value. According to the properties of the measured current, it can be divided into DC ammeter, AC ammeter and AC...[Details]
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China Energy Storage Network:
Nowadays, more and more electric vehicles are appearing in people's daily lives, making green travel a reality. Electric vehicles are at the strategic forefront ...[Details]
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A frequency meter is an electronic instrument often used by electronic hardware engineers. It is an independent device used to measure signal period, frequency characteristics and other functions. It...[Details]
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Chapter 6 Acquisition Module Test Results This chapter mainly tests the designed NMR signal envelope acquisition module. First, the background noise test and sine signal test were carried out, an...[Details]
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China sells about 10 million US dollars of logic analyzers each year, but there are not many units that can fully measure the parameters of logic analyzers. General measurement units can only measure...[Details]
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Editor: Junfei
Xiaomi phones were so popular in the early days that they were often in short supply. Some products even had to be snapped up until they were discontinued. A major reason be...[Details]
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According to foreign media reports, Ford Motor Company has applied for a patent from the U.S. Patent and Trademark Office (USPTO) for an adaptive cruise control system that can be adjusted accordin...[Details]
Embedded System
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