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Today's portable medical devices allow patients to diagnose and treat themselves, move around freely, and even use the devices when they are out and about. To achieve the "easy to carry" feature, po...[Details]
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Embedded systems are the replacement products of computer technology, communication technology, semiconductor technology, microelectronics technology, voice and image data transmission technology, and...[Details]
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introduction
Oxygen is an important substance for human metabolism. Brain tissue has a high metabolic rate and consumes about 20% of the total oxygen in the body. In the clinical rescue and ...[Details]
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At present, the global medical electronics industry is gradually showing attractive development prospects, and the speed of product replacement is constantly increasing. At the same time, due to the p...[Details]
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This article introduces a miniature home electrocardiograph. The instrument has powerful functions: display monitoring, storage, playback, printing, record management, power alarm, telephone or Intern...[Details]
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Today, as network technology becomes more and more popular, industrial field instruments, data acquisition and control equipment are becoming more and more networked, and the combination of industr...[Details]
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Signal sources have developed to a very wide range today. We can classify them according to the frequency range: ultra-low frequency (0.1m～1kHz), audio (20Hz～20kHz), video (20kHz～10MHz), radio fre...[Details]
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0 Introduction
SAA7111 is a programmable video processor produced by Philips. The chip integrates A/D and decoding functions. It has phase lock, automatic clamp, automatic gain control, cl...[Details]
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introduction
Mobile phones, MP3 players, hard disk players, digital cameras, PDAs and other devices are all controlled by navigation keys. Currently, the more popular navigation key contro...[Details]
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introduction
The fall detector is suitable for elderly people and children with poor self-care and self-protection abilities. It senses changes in the body posture of the individual wearing th...[Details]
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MOSFETs are widely used as power switching elements in regulators and motor controllers. They are available as discrete devices or integrated into ICs in various H-bridge configurations.
A hig...[Details]
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1 Introduction
Reliability research originated from weapon systems. After nearly half a century of development, it has become an engineering discipline that covers all disciplines and industri...[Details]
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Introduction: Generally speaking, the power supplies used to drive today's high-resolution analog/digital converters have AC or DC loads of hundreds of ohms or more. Therefore, an operational ampli...[Details]
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1. Basic circuit characteristics of power amplifier
The basic circuit of the complementary symmetrical OTL power amplifier is shown in Figure ①. Among them: C1 is the signal input coupling ele...[Details]
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introduction
Traditional electric actuators are easy to use and save investment, and have been widely used in production process control systems in the fields of electricity, metallurgy, petro...[Details]
Microcontroller MCU
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