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As medical equipment develops towards intelligence, miniaturization, serialization, digitization, and multi-functions, the logic control devices in medical equipment have also evolved from medium- a...[Details]
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Conventional ECG recorders are one of the main means for doctors to diagnose heart diseases, but they can only record short heartbeats. In many cases, it is difficult to record ECG changes during a...[Details]
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DC regulated power supply is a commonly used electronic device, which can ensure stable output voltage when the grid voltage fluctuates or the load changes. A low ripple, high-precision regulated p...[Details]
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In the future, a complete automobile safety system must fully combine gyroscopes, accelerometers, steering wheel and brake pedal position detectors, and tire speed detection systems to accurately ...[Details]
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1 Introduction
In recent years, with the rapid growth of mobile phones and MP4 video players, it is estimated that the production of mobile phones this year will reach 1 billion units, and...[Details]
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In order to meet the requirements of video systems, industrial and medical display and video transmission applications such as eliminating the limitation of long connection cables, increasing data ...[Details]
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1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
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With a 31-step dimming range, existing LED drivers offer good dimming capabilities, providing smooth backlight boosting or dimming effects for LCD displays. However, when the end application involv...[Details]
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The growing global interest in green power has added new variables to the design of power supplies and power adapters. Designers must not only traditionally consider the design specifications requi...[Details]
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Femtocell is similar to Home Node B, a small, low-cost cellular access point used to improve network coverage in personal residences and small business buildings. Usually, it is directly connected ...[Details]
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With the popularity of 3G network, some new laptops have built-in 3G wireless network cards, namely G3 laptops. For most users of relatively old computers, if they have a 3G wireless network card, ...[Details]
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Designers have the most say, they believe that the most decisive integrated circuit technology in the 21st century is the field programmable gate array (FPGA), and traditional gate array and struct...[Details]
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0 Introduction
With the release of the "Elevator Supervision and Inspection Regulations", new requirements have been put forward for the inspection quality of elevators by inspection agenc...[Details]
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The relationship between time and frequency
There is no conceptual difficulty in understanding what happens when a steady-state DC signal is applied to a voltmeter. However, if the signal ...[Details]
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O Introduction
Semiconductor laser (LD) is a solid light source. It has been widely used due to its advantages such as good monochromaticity, small size, light weight, low price and low po...[Details]
Embedded System
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