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1 Introduction PLC is widely used in the control of mechanical manufacturing equipment, but in the CNC transformation of ordinary lathes, using PLC as the core component of the CNC system is s...[Details]

　　This system uses the MCU AT89C51 (＄3.7875)  as the control core and the computer as the host computer to realize the automatic control of the switch status of 8-way home appliances on the comput...[Details]

       On April 12, the China Academy of Information and Communications Technology released the domestic mobile phone market operation analysis report for March 2021. 　　Data shows that from January t...[Details]

1. Introduction The AC speed control system usually uses IGBT pulse width modulation drivers to control the execution motor to operate in four quadrants, so as to meet the high precision and high re...[Details]

Shanghai, China, December 12, 2023 - As a global company specializing in materials science and digital identification solutions , Avery Dennison announced the launch of the China for China (C4C) pro...[Details]

Tektronix joins hands with the Third Generation Semiconductor Industry Technology Innovation Strategic Alliance Standardization Committee (CASAS) Overcoming the challenges of third-generation semic...[Details]

Lithium-ion battery is a widely used rechargeable battery. It has the advantages of high single-cell working voltage , small size, light weight, high energy density, long cycle life, fast f...[Details]

　　1 Introduction 　　During the production process of quartz crystal sheets, they have to go through processes such as cutting and grinding. Some of the quartz crystal sheets will have physical defec...[Details]

What is the shortcut to learning MCU?         The so-called shortcut is to avoid detours. I took a lot of detours when I first started learning MCU. Many friends and I have similar experiences. When...[Details]

The main circuit simulation analysis methods include: state variable method, node analysis method, improved node analysis method, state space averaging method, etc. 1) Simulation technology ba...[Details]

1 The role of system calls The Linux kernel has a set of subroutines for implementing various system functions, called system calls, such as read, write, open, etc. Users can call them in their own a...[Details]

Sichuan Economic and Information Materials No. 64 To the Economic and Information Technology Bureau, Development and Reform Commission, Science and Technology Bureau, Natural Resources Depart...[Details]

Compared with the traditional hand-cranked ground resistance meter, this instrument has the following characteristics: It applies DC/AC conversion technology, integrates three-terminal and four-termi...[Details]

As we all know, the most important component of a frequency converter is the inverter. Early inverters, such as three-phase bridge inverters, often use a six-pulse operation mode, and their output ...[Details]

There are many analyzers available on the market, some with very specific professional uses, others with more general RF measurement capabilities; some are called spectrum analyzers, others a...[Details]