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In electronic production and design, inductor coils with different parameters are often used. The inductance of these coils is not as easy to measure as resistance. Although some digital multimeter...[Details]
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The novel coronavirus epidemic in Wuhan is still raging, and the long-awaited turning point is still to be waited for. At this moment, "When will work resume?" "Do I need to go to the company?" "Is i...[Details]
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The STM32F103xx series is called the enhanced product, and the maximum clock frequency of the enhanced product can reach 72MHz. The English name of the enhanced product is Performance Line.
The STM32...[Details]
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Recently, Hangzhou City released the "Hangzhou City 2019 Digital Economy Shortage Professional Talent Demand Catalog" (hereinafter referred to as the "Catalog"), which counted the talent needs of ent...[Details]
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Fraunhofer ISE recently used Rasirc's steam generator in the production process of back-contact solar cells, and the efficiency of the cells exceeded 20.2%. Fraunhofer has already used the company's h...[Details]
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Traditional boost LED driver The traditional LED driver uses a boost circuit, and the simplified circuit form is shown in Figure 1. Figure 1 The input voltage VIN of the boost type LED backligh...[Details]
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More and more consumers are choosing new energy pure electric vehicles, but many car owners have ignored the maintenance of electric vehicles. We all know the routine maintenance of fuel vehicles, ...[Details]
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Intel released its Q1 2020 financial report on its official account. The report shows that Intel's revenue in the first quarter of 2020 was $19.8 billion, a year-on-year increase of 23%. Among them, ...[Details]
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802.11ac technology is being deployed at a rate unprecedented for any previous WLAN standard. Consumers' appetite for high-bandwidth video content continues to drive demand for the 1 Gbps data link...[Details]
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1 Circuit structure and working principle The main circuit structure of the new variable frequency power supply is shown in Figure 1. D1~D4 are conventional rectifiers, S1~S4 are conventional invert...[Details]
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Introduction Embedded systems are professional computer systems that focus on practical applications and have strict requirements on functionality, reliability, cost, volume, and power consumption. W...[Details]
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The second generation of blade batteries does bring many new features in design and performance.
首先,它显著提高了低温性能。采用了新的电解液配方,有效降低了电池的内阻,使其在低温环境下也能保持出色的放电能力。这在实际使用中意味着,无论是在寒冷的冬季还...[Details]
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In mechanical engineering, due to production needs, motors are frequently in the process of starting, braking, and reversing, so the starting and braking time of the motors largel...[Details]
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A busy tone is a tone that appears when a single tone of a certain frequency and silence interact, usually used to indicate that the phone is busy. In some practical applications, this busy tone need...[Details]
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In the previous section, we talked about how to implement the tasklet mechanism
http://blog.csdn.NET/morixinguan/article/details/69666935
In this section, we will implement th...[Details]