MS9354-04

Working principle of series motor speed regulation The principle of series motor speed regulation can be explained in the following steps: 1. Change the excitation current: By changing th...[Details]

      Apple iPhone SE 2nd generation has been available for pre-order since April 17. Previously, the delivery date of iPhone SE 2nd generation in the United States has been postponed to the first we...[Details]

In the coming years, automotive wiring harnesses will move from heterogeneous networks of different protocols to hierarchical homogeneous Ethernet networks. In this new scenario, laboratory test benc...[Details]

0 Preface 　　Ethernet is a computer LAN networking technology. In a LAN, multiple nodes share the transmission medium. This requires some mechanism to determine which device occupies the transmission ...[Details]

On the evening of March 29, Applied Materials announced that it had terminated its acquisition of Kokusai Electric from investment company KKR and would pay KKR a cash termination fee of US$154 milli...[Details]

  The transformer primary voltage is 220V, the secondary voltage is 16V, the secondary current is 1.5A, the primary current is about 350mA when the secondary is abnormal, and it should enter the prot...[Details]

Americans are very supportive of breaking up the tech giants, especially if it would stop companies like Amazon and Google from ranking search results that help them generate revenue at the top. 　　 N...[Details]

On March 22, BOE issued an announcement stating that in order to meet customer needs and enhance industry competitiveness, Wuhan BOE plans to expand production capacity in the existing Wuhan BOE fact...[Details]

Author: Xinggang Hu Localization and map building in visual SLAM in dynamic scenes face great challenges. In recent years, many excellent research works have proposed effective solutions to th...[Details]

May 20, 2022, Shenzhen, China - The new generation of OPPO Reno8 series is about to be released, and the series models are "double": Dimensity 8100-MAX and the world's first Snapdragon new platform ,...[Details]

Scan line, there is nothing on the screen. For digital oscilloscopes, you will not see waveform updates. If you don't understand this, you will often think that the signal is not connected or some ot...[Details]

With the popularization of new energy vehicles, the charging pile industry is regarded as a "blue ocean" by capital. Since the opening of the Chinese electric vehicle charging and swapping facilities...[Details]

An inductor, an IC, and a string of LEDs; this is the traditional way to build a boost LED driver for LCD display backlighting. While this is a very desirable solution for small LCD displays that r...[Details]

　　1 Introduction 　　Printed circuit board (PCB) signal integrity has been a hot topic in recent years. There have been many research reports in China that analyze the factors affecting PCB signal inte...[Details]

Control switch power on/off circuit Figure 2. Control switch power on/off circuit The circuit for controlling the on/off of the switch power supply by ON activation is shown in the figure. The...[Details]