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Sina Digital News reported on the morning of May 23rd that a new document from the Federal Communications Commission (FCC) this week revealed a new "network adapter" product from Apple that runs i...[Details]
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The starting performance of the medium frequency power supply is the most important performance indicator, and its quality directly affects the quality and performance of the equipment. Therefore, ...[Details]
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The S3C2440A has five 16-bit timers. Timers 0, 1, 2, and 3 have pulse width modulation (PWM) capabilities. Timer 4 is an internal timer with no output pins. Timer 0 also contains a dead zone generato...[Details]
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This design idea shows a new method to drive six LEDs using only two MCU I/O lines. This method is especially suitable for any chip with limited pins. This method uses two I/O lines and a pair of co...[Details]
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VOD (Video on Demand) is a hot technology in contemporary multimedia application technology. It uses intelligent two-way networks to achieve interactive high-speed digital image transmission, which gr...[Details]
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很多初学示波器的工程师最关心的是“怎么让波形出来”,这时候我们一般都被教会了要用“AutoSet”键。 但如果AutoSet之后波形还是出不来,我们往往不知所措了; 或者是即使Auto Set能使波形出来,就可以往下进行测量和分析了吗? 只有很初级的工程师会用AutoSet,所以我们很低端示波器WaveJet系列设计的AutoSet反应速度全世界最快,按一下Auto Set,1秒左右就有波形...[Details]
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The latest report released by market research firm Counterpoint Research shows that iPhone XR is the world's best-selling smartphone in the third quarter, with a market share of 3%. So far, iPhone XR...[Details]
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Last month, vivo announced that it will hold a new product launch conference on April 11 to officially launch its first foldable screen mobile phone vivo X Fold. Recently, some netizens have posted o...[Details]
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The float level gauge is a continuous level measuring instrument with simple installation and reliable operation. It has a wide range of applications and is widely used in the level measurement of va...[Details]
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In the smart cockpit, everyone knows that Qualcomm chips are currently mainstream, such as Qualcomm 8155 and Qualcomm 8295. The continuous publicity of car companies makes us know the importance of c...[Details]
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The penetration rate of flat wire motors was approximately 27% in 2021, and it is expected to reach 40% this year. With the maturity of flat wire technology, usage will grow rapidly in the future.
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Charging is indeed a headache for electric car owners. Either they can't find a suitable charging station, or the charging time of the electric car is too long. If they encounter a "power shortage" d...[Details]
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FPT (Fiat Powertrain Technologies) launched the all-electronic valve technology MultiAir as early as 2011, and used it in the Alfa Romeo Mito 1.4T model. However, this advanced technology was no...[Details]
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The washing machines currently sold on the market are mainly divided into two types: drum washing machines and pulsator washing machines. Although the sales of drum washing machines have increased...[Details]
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Electronic switch arc extinguishing circuit
Figure 1. Electronic switch arc extinguishing circuit
On the basis of thyristor V1 bypass arc extinguishing, a thyristor V2 is connected in serie...[Details]