Dear forum friends, in the DCDC part of the above picture or the usual four-layer board, the middle layer of gray-yellow will be paved with copper to form a complete ground, but there is basically no ...
Hi, everyone~ Today I saw someone post a color PCB in the group chat, as shown below:Some netizens in the forum have shared the methods of importing pictures into PCB before, but those methods seem to...
What is a program? A program is a process. Many people don't know where to start when facing the protocol stack. Then they don't know how to fix the problem. When they raise questions, others explain ...
I encountered some problems when testing HID. I found a very good article on the official website. I forwarded it to you so that you can learn together.For USB devices, one of them is HID devices, nam...
[size=4] WEBENCH Power Designer is an online design tool that helps you select, design, and compare power supply designs as needed. Powerful and easy to use, WEBENCH Power Designer guides you through ...
Since Clark and Lyons proposed the concept of biosensors in 1962, they have received extensive attention and development in the past few decades due to their high specificity in the biorecognition ...[Details]
A radioactivity detector is an instrument for detecting radioactive substances. It can be seen that radioactive substances are very harmful to people. So what is the role of a radioactivity detector? ...[Details]
There are four main types of lightning strikes:
1. Direct lightning strike
Direct lightning contains huge energy, and the peak voltage can reach 5000kV. The lightning current entering the ground ...[Details]
The high-voltage isolated differential probe adopts a new circuit, high impedance and low capacitance input, and the collected data are processed by the integrated block, which can completely and t...[Details]
The automobile industry revolution is happening again a hundred years later. Who will take the lead? Change Maker No.20 A 315 gala has put Tesla in a Rashomon again. Tesla is the only one to becom...[Details]
According to foreign media reports, a three-year study found that Tesla has a 74% share of the US electric vehicle market. In the past three years, the study counted 568,881 electric vehicles sold in...[Details]
Batteries play an important role in modern life, powering laptops, phones, robot vacuum cleaners, hearing aids, pacemakers, and even electric cars. But they also pose safety risks and have an impact ...[Details]
GLOBALFOUNDRIES and Qualcomm collaborate on cutting-edge 5G solutions that deliver breakthrough coverage and exceptional mobility
SAN DIEGO, Sept. 15, 2021 – GLOBALFOUNDRIES (GF), ...[Details]
Production and use
The transistors in this circuit use silicon triodes. BG1 and BG2 have B values less than 100, and BG3 and BG4 have B values less than 30. The capacitors require low lea...[Details]
How to use a multimeter to troubleshoot circuit board failures The red test lead is grounded, the pins in the red circle are ground, and the negative pole of the capacitor is ground. The black te...[Details]
Take LM3S9B90 as an example. Startup.s file is the system startup file, which mainly includes the initialization configuration of the heap and stack, the configuration of the interrupt vector table, ...[Details]
Today's LED lighting has a variety of applications, from simple incandescent or cold cathode fluorescent lamp (CCFL) replacements to new architectural, industrial, medical and other applications. I...[Details]
In a 32-bit ARM system, a branch instruction or a PC register load instruction is usually placed in the interrupt vector table to implement the function of the program jumping to the interrupt serv...[Details]
Analog electronics
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