Unlike a single-chip computer, the Linux system is not like a single-chip computer. After booting, finding the main function is the entire process of the program. The startup of Linux is very complica...
A forward switching power supply is a switching power supply that uses a forward high-frequency transformer to isolate coupled energy. The forward switching power supply has a relatively complex struc...
The Mi 10 series has been released for some time. As Xiaomi's first smartphone to enter the high-end flagship market, it has received mixed reviews from the outside world. Xiaomi CEO Lei Jun once res...[Details]
According to the latest report from market research firm Strategy Analytics, the global smartphone display panel market revenue was US$21 billion in the first half of 2021. Among them, Samsung Displa...[Details]
On November 7, the 2020 Tianyi Smart Ecosystem Expo opened grandly in Guangzhou. This is the 12th consecutive year that China Telecom and Qualcomm have jointly held this industry event. Today, Tianyi...[Details]
1. Working principle of gas flow meter The gas flow meter is a throttling differential pressure flow meter. It is based on the fluid flow continuity equation and the Bernoulli equation. When the ...[Details]
Last night, Huawei held a global online new product launch conference and officially launched the new generation of flagship mobile phones Mate 40 series. After the conference, Huawei Mate40 P...[Details]
1. Introduction With the continuous development of social economy, human beings' demand for energy is increasing day by day, which makes the supply of non-renewable energy such as oil, coal and n...[Details]
Embedded development learning is a process of continuous accumulation and summary. Here are thirteen rules for embedded development learning summarized by a senior embedded development engineer. Y...[Details]
The microcontroller source program is as follows: //Press the F key on the 4X4 keyboard to enter the setting state //ED key is the forward and backward movement key //C button is to adjust the value...[Details]
With the rapid development of modern electronic design methods, EDA simulation technology is increasingly used in actual circuit design. EDA technology first establishes a circuit model and then a...[Details]
You must know Wi-Fi, Bluetooth and 5G, but now, there is a new wireless communication term. Apple recently announced that iPhone 11 and iPhone 11 Pro have added ultra-wideband technology (UWB). So wh...[Details]
In your daily experiments, have you ever had similar questions: "There are so many oscilloscopes in the lab. Which one should I choose for this 400G test?" "Today I'm just checking the power supply o...[Details]
In October 1985, the ±500 kV Gezhouba-Shanghai DC transmission project started construction. This is my country's first ultra-high voltage DC transmission project. The monopole and bipole were put ...[Details]
There are two different opinions on whether alkaline batteries can be recharged. Some say they can be recharged and the effect is very good. Some say they absolutely cannot be recharged, and the ba...[Details]
China Mobile's Global Partner Conference was held in Guangzhou from November 14 to 16. With the official commercialization of 5G in China and the official release of 5G packages by operators, discuss...[Details]
October is the golden period for project construction. Damao Banner has sounded the charge for key project construction. With a running attitude, a competitive mentality, and a scrambling state, it is...[Details]