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　　1. The performance indicators of the instrument must meet the requirements of the national metrological verification regulations. The instruments in use should be calibrated periodically. If necessa...[Details]

ARM programming, especially the writing of system initialization code, usually requires the implementation of interrupt response, parsing jump and return operations to support the development of upper...[Details]

Manufacturers of portable consumer electronic devices face many challenges. They must develop cost-effective, high-performance, and versatile audio solutions while extending battery life. On the othe...[Details]

Mask breathing resistance detector Product introduction The mask respiratory resistance tester is used to measure the inhalation and exhalation resistance of the mask under specified conditions. It i...[Details]

1 Introduction Power supply devices are an important field of power electronics technology application. Among them, high-frequency switching DC regulated power supplies h...[Details]

Fourth quarter net revenue was US$4.28 billion; gross profit margin was 45.5%; operating profit margin was 23.9%; net profit was US$1.08 billion Full-year net revenue was US$17.29 billion; gross pr...[Details]

Portable devices using LED-based solid-state lighting (SSL) require efficient driver circuits to extend battery life, and also require some method of dimming to adjust the light output to suit the ...[Details]

In the design of servo control systems or the selection of servo motors, inertia issues often need to be considered. Inertia is an important factor affecting the response speed and stability of ser...[Details]

1. Introduction With the advancement of wireless communication product technology in recent years, personalized wireless communication products can be said to be quite popular. In order to achieve a...[Details]

热阻(thermal resistance)，是物体对热量传导的阻碍效果。热阻的单位为℃/W，即物体持续传热功率为1W时，导热路径两端的温差。led的热阻是指LED点亮后，热量传导稳定时，芯片表面每1W耗散，PN结点的温外与连线的支加或散热基板之间的温度差就是LED的热阻Rth。热阻值一般常用θ或是R表示，其中Tj为接面位置的温度，Tx为热传到某点位置的温度，P为匯入的发热功率。热阻大表示热...[Details]

Common file systems under embedded Linux • RomFS: read-only file system, which can be placed in ROM space or in the RAM of the system. It is often used as the root file system in embedded Linux • Ra...[Details]

As we all know, as the core component of pure electric vehicles, the performance of power batteries in all aspects is closely related to the performance of the whole vehicle. Today we will talk abo...[Details]

       Last night, a blogger revealed that one of ZTE's latest flagships had obtained 3C certification. The specific model is ZTE A2023P, which shows that the phone will support 80W fast charging. 　　...[Details]

The MAX17116 includes two current-mode 1.4MHz switching active-matrix organic light-emitting diode (AMOLED) display power supplies (SMPS) regulators. The positive supply is provided by a boost regu...[Details]

Metal oxides and their composites with other materials (such as MXenes and metal chalcogenides) can be used to detect different gases or vapors, such as NO2, H2S, CO, C2H5OH, benzene, toluene, and ...[Details]