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Abstract: The reasons of low power factor in the electronic and power equipments are simply analyzed in this paper. A high frequency charge pump power-factor-correction(PFC) AC/DC converter is prop...[Details]
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1 Introduction to AD7674 and C8051060
1.1 Introduction to AD7674
AD7674 is a high-precision 18-bit successive approximation (SAR) ADC with the characteristics of high sampling rate, high ...[Details]
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Many people don't know that in the daily production process of power transformers, the choice of materials determines the quality of the transformer. We should not only look at the low price, but i...[Details]
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ARM startup code is very important code, directly related to the stability and reliability of the system (here we mainly discuss arm7, arm9; cortex series will be discussed in subsequent articles). La...[Details]
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Recently, the national finals of the 5th (2022) National Undergraduate Embedded Chip and System Design Competition, supported by STMicroelectronics (ST), came to a successful conclusion. The competit...[Details]
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Tesla CEO Elon Musk has repeatedly said he would open up its Supercharging network to other competitors, but the company has never done so in the U.S. market, according to foreign media reports. Now M...[Details]
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Clamp-on ultrasonic flowmeters can only measure liquids, such as tap water, sewage, seawater, pure water, reclaimed water and other relatively clean liquids. If the liquid contains a lot of lumpy dir...[Details]
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Have you seen the disassembly of Xiaomi 11 and iQOO7? As fast charging is about to become the standard for mobile phones, the adapter naturally needs to be upgraded. When Xiaomi 11 was released, t...[Details]
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Previously, DxOMark announced that Huawei P30 Pro ranked first in DxOMark rear camera with an overall score of 112 points. Now DxOMark has also announced the score of Huawei P30 Pro front camera: 89 ...[Details]
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Why do electric car fires happen so frequently?
1. The use of ternary lithium batteries is the technical reason for frequent car burns
Tesla uses ternary lithium-ion batteries. Before...[Details]
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This is a very small electronic product, but it is very powerful. It can be easily embedded and installed on the instrument panel. It is suitable for enthusiasts to make or modify old instruments. ...[Details]
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Minimizing output ripple and switching transients is very important for some applications, especially for noise-sensitive devices such as high-resolution ADCs. When a switching regulator is used as a...[Details]
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As the novel coronavirus outbreak sweeps across the globe, tech giants are fighting an entirely different battle. Samsung's Gumi smartphone factory w...[Details]
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This section describes the instruction execution and memory access timing. The AVR CPU is driven by the system clock clkCPU. This clock is directly generated by an external crystal. There is no clock...[Details]
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Touch screen technology has been around for more than 30 years, and people are no longer new to pointing and drawing on the screen. But just when people were tired of the touch screen, the iPhone c...[Details]