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The factory-preinstalled JZ2440 development board has already burned the bootloader, kernel and file system. However, during specific use, we found that the kernel partition divided on the board was ...[Details]
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1. Theoretical lifespan:
LED light source 100,000 hours, 5 hours a day, lifespan up to 55 years
Cold cathode light source 30,000 hours, 5 hours a day, lifespan up to 16 years
Conclusio...[Details]
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1 Introduction
As a semi-controlled power semiconductor device, the basic function of thyristor is to rectify, regulate and chop the voltage to meet the actual needs. At present, thyristor rec...[Details]
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Early this morning, Apple released its first quarter financial report for 2021, with revenue exceeding $100 billion for the first time. This quarter, sales of almost every Apple product increased by ...[Details]
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With the rapid development of the Internet, the demand for high-power UPS and generators in data centers has increased rapidly, which has also caused some new problems. This article conducts theore...[Details]
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Abstract: In order to realize the miniaturization of medical equipment and the wirelessization of medical monitoring , a medical monitoring system based on ZigBee wearable sensors is designed, w...[Details]
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Mathcad plays a very important role in our daily power supply design. Sometimes it is even called "office computing tool" by engineers. Mathcad has gradually become an indispensable tool that can i...[Details]
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Newark, a global distributor of electronic components and development services, announced the appointment of Huang Xuejian as General Manager of Sales for Newark Greater China , responsible for the d...[Details]
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Using the NI PXI platform, ALE Systems Integration developed a system that can test airborne communications equipment on Navy aircraft.
Author(s): Lawrence M. David Jr - ALE System In...[Details]
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Current mode control chip circuit diagram
Figure 1. Current-mode control chip circuit diagram
The circuit diagram is shown in Figure 3. The circuit works in the flyback mode, using a 0.2 oh...[Details]
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The microcontroller has limited external interrupts, only two, which may not be enough in some system designs. Here is a relatively simple method to expand external interrupts. The inspiration comes f...[Details]
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Redmi's official Weibo account released a poster tonight, suggesting that the three talented musical girls will endorse the Redmi Note 9 "Three Musketeers" mobile phone. It is inferred that the...[Details]
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With the rapid development of new energy vehicles, a large number of retired power batteries are bound to be brought in. Recently, a reporter from Securities Daily interviewed Liu Changlai, a deputy t...[Details]
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Opening remarks:
In the previous section, I demonstrated the programming framework that I commonly use in industrial control through a robot automatic control program, but I have never touched on the...[Details]
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OnePlus Technology CEO Pete Lau announced the launch information of the new generation flagship on Weibo as promised. According to Pete Lau, this launch will be the largest launch in OnePlus'...[Details]
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