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1 Introduction   There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have sin...[Details]

China Unicom has officially announced the final prices of six 5G mobile phones, including Huawei Mate 20 X 5G and ZTE Axon 10 Pro 5G, as well as a number of 5G CPE terminal products.       Accordin...[Details]

When compared to voltage-mode switching power supplies, current-mode switching power supplies have several advantages: (1) High reliability with fast, cycle-by-cycle current sensing and protection ca...[Details]

Introduction 　　EP7209 is the world's first digital audio decoder system-on-chip that supports both the popular MP3 standard and rapidly emerging Internet audio compression standards such as Microsof...[Details]

Supercritical fluid chromatography is generally divided into three parts, namely the mobile phase system, separation system and detection system.  　　The mobile phase system mainly includes the mobile...[Details]

       On March 17, Redmi announced that the K30 Pro will be officially released on March 24. 　　According to the information that has been disclosed, Redmi K30 Pro has two versions: standard version ...[Details]

Frost & Sullivan Names HID a Leader in Biometrics In Frost Radar™’s 2022 Annual Biometric Report, HID ranks first in growth index and third in innovation index 　　Austin, Texas, February 15, 2023 ...[Details]

Before reading the content here, you have already installed the environment and can do a basic experiment. That is the content of the following three links. https://blog.csdn.net/x1131230123/article...[Details]

Step 1: First, adjust the ohmmeter to the appropriate position. Generally, the device with a capacity below 1uf should be tested with the "20k" position. For capacitors between 1uf and 100uf, use the...[Details]

1. The concept of interruption     When the CPU is processing an event A, another event B occurs, requiring the CPU to process it quickly (an interrupt occurs);     The CPU temporarily interrupts...[Details]

Abstract: Intelligent circuit breakers have digital interfaces that can transmit location information, status information, and opening and closing commands through the network. This article introdu...[Details]

Preface Portable electronic products all use batteries as power sources. With the rapid development of portable products, the use of various batteries has increased significantly, and many new ba...[Details]

The automated operation of equipment and instruments cannot be separated from SCPI. SCPI (Standard Commands for Programmable Instruments) is a standardized instrument programming language based on th...[Details]

The U.S. government is stepping up efforts to gain access to minerals vital to modern technology but whose supply is dominated by China, with mining companies warning the "monopoly" could take years ...[Details]

A soft starter is an electrical device used to start a motor. It can effectively reduce the current impact when the motor starts and reduce the impact on the power grid and the motor. However, in p...[Details]