When the input voltage Ui0, making D1 conductive and D2 cut off. The textbook says that the current on Rf is 0 at this time, so the voltage Uo is 0. But why is the current on Rf zero? I can't figure i...
[align=left][color=rgb(70, 70, 70)][font=simsun]I won't say anything more. Here is the program: [/font][/color][/align][align=left][color=rgb(70, 70, 70)][font=simsun]//Detect the internal temperature...
Anyone want to apply for Huaqing Yuanjian's Linux employment training class in September? If you join us, you can enjoy a 10% discount and then another 10% discount. If you are a friend in this field,...
Dear heroes: I need to use SD card to store data under S3C44B0X processor. Considering that S3C44B0X does not have its own SPI bus, and SPI mode may cause slow reading and writing of SD card, hero rea...
The LMR24220 module I applied for last time was used in my DIY QQ smart lock. The lock was bought from Taobao. It is a motor-controlled control signal. It is open when 9V is supplied and closed when n...
At present, the development of wireless power supply technology for electric vehicles (EVs) is becoming more and more active. In 2012, Volvo of Sweden established Volvo Technology Japan in Tokyo as...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
Automotive applications are particularly sensitive to EMI events, which are unavoidable in a noisy electrical environment consisting of a central battery, bundled wiring harnesses, various inductiv...[Details]
In order to highlight the concept of "energy saving and environmental protection" of intelligent buildings, solar street lights are designed for intelligent communities. The inclination and capacit...[Details]
Although it is relatively easy to check the stability of a simple amplifier at lower frequencies, it may be much more difficult to evaluate the stability of a more complex circuit. This artic...[Details]
Continuity test
A variety of devices need to be checked for continuity, including cable assemblies, printed circuit boards, and connectors to ensure that these components have the expected contin...[Details]
Abstract: With the development and construction of BeiDou II system, China will shift from the situation dominated by GPS to the situation dominated by BeiDou II global navigation system independen...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
Based on the actual situation, a remote intelligent anti-theft alarm device for home use, connected to the telephone line, simple to operate, and stable and reliable in operation is designed. When ...[Details]
introduction
Belt drive is a common transmission device used in industrial production. Its commonly used speed detection device is a photoelectric encoder installed at the rotating end of th...[Details]
1. Introduction
Modern modular machine tools are equipped with a large number of electronic devices to meet the requirements of processing accuracy, processing speed, etc. If the conventional ...[Details]
The NCL30051 from On Semi is a peak current controlled fixed off time buck controller designed for LED driver applications. It has adjustable off time, 250mA source/500mA sink peak drive capability, ±...[Details]
Introduction
The LED market has seen tremendous growth over the past few years. Advances in thermal dissipation, packaging, and processing have resulted in higher brightness, higher efficien...[Details]
Introduction
With the development of economic level, people's demand for cars is increasing. While cars bring great convenience to our travel, they also pose challenges to the health of d...[Details]
Today, drivers and passengers expect to enjoy the same technological comforts on the road as they do at home. Consumer demand for traditional in-car infotainment systems, such as CD players, is giv...[Details]
Analog electronics
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