1. Why is the starting condition of self-oscillation |AF|>1? How is it calculated? 2. Why is it easier to self-oscillate when the feedback depth is greater? Please answer this question, I don’t unders...
China introduced high-speed rail in 2008, and by the end of 2014 the network had grown to 16,000 km. It is the largest high-speed rail network in the world, carrying 2-3 million passengers per day. Th...
I am working on a product migration recently. The user data has 7 blocks of content. The old products all communicated using the EEPROM read and write method, and I am not familiar with the internal c...
[Ask if you don't understand] The TPS3802 chip is selected as the reset chip. The manual says that the reset time is 400ms (meets the requirement). But this 400ms is the delay implemented inside the c...
If it says that the dll file cannot be found, there are usually the following problems: 1. The dll file does not exist. 2. The dll file is abnormal, such as version incompatibility or file damage. san...
According to foreign media reports, high-performance specialty materials manufacturer Unifrax will showcase its latest product, SiFAB™ silicon fiber anode battery technology, at the Battery Show in N...[Details]
Float flowmeter is the most popular type of flowmeter products. For example, glass rotor flowmeter, plastic tube float flowmeter, traditional metal tube float flowmeter (Chengfeng Instrument's third-...[Details]
China Energy Storage Network:
Recently, the Tianhu switch station in Xiamen, Fujian Province has undergone a gorgeous transformation. The first "multi-station integration" power distribution ...[Details]
Previous leaks showed that Samsung's new Galaxy S21 series flagship phones are expected to be released in advance, and now the most critical release time information has been exposed. Today, whistleb...[Details]
According to financial reports, Huawei's 2019 Pollen Annual Meeting was officially held today. Huawei Consumer Business CEO Yu Chengdong attended the meeting and delivered a speech. Yu Chengdong sa...[Details]
With the improvement of industrial production automation level, various sensors are being used more and more. As a sensor for speed and displacement feedback, rotary encoders are mainly used in CNC m...[Details]
On August 8, at the launch ceremony of Sinopec's "Love Running Festival", a high-tech product was unveiled along with high-performance fuel products. The new generation of intelligent refueling
...[Details]
This project is more like a handmade work than an electronic production. Netizens without circuit knowledge can make it with confidence.
1 Tools and Materials
2 Schematic diagram
3 M...[Details]
The number of parallel I/O ports of a single-chip microcomputer is always limited. Sometimes the parallel ports need to be used for other more important purposes. Generally, a large number of paralle...[Details]
CAN (controller area network) is a serial data bus with strong real-time performance, good flexibility and high standardization. It is widely used in automotive electronics, industrial automation, sh...[Details]
Looking back at the previous programming tutorials, the first one is the I/O chapter. I/O mainly explains the pin characteristics of I/O and how to control the level input and output of I/O through C...[Details]
Today I will write a summary and analyze the s3c2410_nand_calc_rate function again. I finally know where the problem is. The previous print content is as follows:
plat- tacls:0
plat- twrph0:3
pla...[Details]
With the rapid development of my country's economy and society, the volume of railway passenger and freight transportation has continued to increase, and the speed of trains has continued to increa...[Details]
A new round of UHV construction under the “new infrastructure” is reversing the downward trend of power grid investment.
As the main force in power grid investment, State Grid Corporation of C...[Details]
The industrial robot control system is the core component of the industrial robot. It is responsible for receiving input signals, processing information, controlling the robot's movement and execut...[Details]
Analog electronics
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