The working principle and wiring of the frequency-modulated series resonant high-voltage test equipment are shown in Figure 1. The AC 220V or 380V power supply is converted into a power supply with ad...
Control issues regarding the direction of the 485 serial port in embedded Linux :
For the 485 serial port, in the default mode, the A and B levels are equal and it is the receiving state. When sending...
How can I use the 51 single-chip microcomputer to collect data from the video module and transmit it through the network interface? I now only know that I need a large-capacity data storage device, a ...
When you hear the word digital TV, you may feel fresh and excited, but when it comes to what digital TV is and what it can bring us, you may still be confused. You must be very eager to understa...[Details]
introduction
Controller Area Network (CAN) is a bus standard proposed by Bosch of Germany to solve the information communication between automotive electronic control units. With its excel...[Details]
Preface
In recent years, many compact portable electronic products have been developed, such as mobile phones, digital cameras, MP3, MP4, PDA, GPS and DVD, etc. They are not only small in size...[Details]
In today's world, terrorism poses a severe challenge to social development, national stability and human progress. "Terrorism, political corruption and environmental pollution" are known as the thr...[Details]
The microwave multifunctional therapeutic device uses microwave radiation for heating treatment, which can achieve the effects of sterilization and blood circulation. Using microwaves to directly c...[Details]
Abstract: By controlling the supply voltage of the radio frequency (RF) power amplifier (PA) in a CDMA/WCDMA cellular phone, the PA efficiency can be improved, heat generation can be reduced, and t...[Details]
Abstract
Modbus protocol has become the first choice of communication protocol in the current industrial field due to its openness, transparency, low cost and easy development. This paper int...[Details]
Mesh network architecture and advantages
The Internet is a flat network. The routers that make up the Internet are on the same plane. The mesh network formed by multiple paths between ...[Details]
0 Introduction
Electric vehicles are high-tech products that integrate computer technology, communication technology, electronic technology, and new material technology. They have a complex ...[Details]
Today, many wireless devices combine GSM, WCDMA, Bluetooth, WLAN, GPS and FM technologies and support the high data rates required for mobile Internet. Moreover, as customers demand mobile wireless...[Details]
In the past one or two years, driven by Apple's iPhone, the smartphone market has expanded rapidly. An important feature of portable products such as smartphones is that they have more and more fun...[Details]
Future 4C products are characterized by low price, light weight and mobile Internet access, so their power supply design must break away from traditional limitations, including complicated external...[Details]
introduction
Laser Doppler displacement measurement technology has the characteristics of high precision, high signal-to-noise ratio, fast dynamic response, good linearity, strong anti-int...[Details]
Game console designers must find a balance between achieving system versatility, reliability, and low cost. Market pressures often force initial console prices to be below profitable levels. Howeve...[Details]
SiN is widely used in semiconductor technology. The main properties that make SiN an important dielectric are its low leakage current and high breakdown voltage. As ultra-large scale integration (U...[Details]
DIY/Open Source Hardware
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