[size=4]Circuit and working principle: [/size] [size=4]When the positive half cycle of the input voltage passes, the detector tube VU2 is turned on to charge the capacitors C1 and C2 until the peak va...
I made a stopwatch program for students to refer to. We have covered all the knowledge points involved in the program, including timers, digital tubes, interrupts, buttons, and other knowledge points....
Understanding and Optimizing Sampled Data Systems : https://training.eeworld.com.cn/course/4769Analog-to-digital (or digital-to-analog) data conversion is an important component in many forms of elect...
Although 40 Oceans was produced by someone else, I don’t think it’s that good. For example, Captain Marvel, I don’t know what the ending is, which makes me feel inexplicable....
The prosperity of China's automobile market has not been greatly affected by the rise in oil prices. According to media reports, there are currently 8,000 new cars added each month in Beijing alone, m...
Just like the 10086 system! How does it detect the key you press? How does it receive your command? [b][size=13px][color=#000000]Can Android phones achieve such a function? Can external hardware devic...
According to Qualcomm's naming rules, the next-generation flagship platform is expected to be named Snapdragon 865. On August 6, a mysterious device codenamed "Kona" appeared on the GeekBenc...[Details]
In recent years, especially with the continuous development of industrial automation, more and more industrial equipment has begun to use PLC for control, and variable frequency speed regulation de...[Details]
The materials used in OLED mainly include electrode materials, carrier transport materials and light-emitting materials.
1. Electrode Materials
1) Cathode material
In order to impro...[Details]
Researchers at Karlsruhe Institute of Technology (KIT) and partner institutions have studied structural changes during the synthesis of cathode materials for future high-energy lithium-ion batteries ...[Details]
Many quantities in reality are analog quantities, such as temperature, pressure, etc. To understand them, the microcontroller must first digitize these quantities. AD conversion is to convert analog ...[Details]
2024 is known as the first year of the development of super charging piles in China (hereinafter referred to as "super charging").
While the country is vigorously supporting the construction o...[Details]
According to foreign media XDA, after the initial reverse compilation analysis of Google Camera 7.3 found that Google was preparing to add support for 24fps video recording, XDA once again found evid...[Details]
Variable frequency operation has existed in the form of alternators since the advent of the automatic induction motor. Changing the speed of the generator changes its output frequency. Before the a...[Details]
The figure above shows a general block diagram of a variable frequency power analyzer. Depending on the technology used, not all components listed in the figure are indispensable. If necessar...[Details]
On July 29, some media reported that Meizu has been continuously closing offline stores in recent years, and now there are only five or six offline stores in each province; at the same time, Meizu ca...[Details]
Abstract: Aiming at the particularity of the doubly-fed motor excitation control technology, the control model of its excitation voltage and frequency was established, and a new doubly-fed motor exc...[Details]
This was the quick answer given by OPPO Vice President Shen Yiren in response to a series of questions from the author during the media interview session after the OPPO Reno series mobile phone launc...[Details]
LED switching power supplies will develop towards high frequency in the future, because high frequency promotes miniaturization and enables switching power supplies to enter a wider range of applicat...[Details]
Analysis of network design of TV station and theater lighting system
With the recent frequent construction and renovation of TV stations/theaters in China, the use of the powerful func...[Details]
GIC is a very important part of ARM architecture. This article is based on the public ARM corresponding data and the MTK development board. I record it after my personal understanding to consolidat...[Details]
Analogue and Mixed Signal
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