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1 Introduction The power supply is the heart of all electronic devices, and its quality directly affects the reliability of electronic devices. Currently, various high-efficiency portable electronic ...[Details]

Source: CTIA report "A National Spectrum Strategy  to Lead in 5G》 China's lead in the 5G race is obvious to all. According to the latest news, at least 16 provinces, autonomous regions and mun...[Details]

Operators see enterprise and industrial Internet as growth engines   In the previous article "Digital Transformation Demand Creates New Space in the Core Network Market", Yang Guang, Director of Wi...[Details]

Battery run time is an important factor in mobile device design. Many mobile devices are adding more features that quickly reduce run time. Engineers must use sophisticated power managem...[Details]

This year, everyone is staying at home, and since it is the Spring Festival, there are fewer production tasks. Now Hyundai Motor has announced that it will stop production activities in South Korea d...[Details]

China Energy Storage Network News: On December 9, the Qinghai-Tibet Interconnection Project, Tibet’s first “power sky road”, was completed and put into operation for ten years. As of the en...[Details]

Recently, at the Advanced Packaging and Testing Forum held at the same time as ICCAD 2019, Natalian Der, business strategy director of Teradyne Co., Ltd., gave a keynote speech entitled "Testing - Br...[Details]

O Introduction In power production, there are two types of power output by the generator, namely active power and reactive power. In the process of AC power transmission and use, part of the en...[Details]

Intelligent network terminal is an embedded terminal device that realizes intelligent management. It usually has the basic functions of security access control system and automatic control. This artic...[Details]

According to the TechNews, Japan's tightening of export controls on three types of semiconductor materials to South Korea may severely damage South Korea's semiconductor and panel industries, which h...[Details]

　　More than half of 2017 has passed, and the hot search in the mobile phone circle in the first half of the year is full-screen . Since February, a large number of full-screen mobile phones have been...[Details]

On July 31, Luxshare Precision stated in an interaction with investors that the company's production capacity is flexible and adjustable, and the impact of the overseas epidemic on the company is lim...[Details]

　　0 Preface 　　After the PCB is welded, its components need to be tested. The traditional method is to test after welding it off the PCB board, but this method is not only troublesome and inefficien...[Details]

1. Conception of program design: 1)  Control principle of stepper motor The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear ...[Details]

Equivalent circuit of parallel resonant transformer Figure 1. Equivalent circuit of parallel resonant transformer The equivalent circuit of the parallel resonant transformer is shown in Figure...[Details]