In actual circuits, the magnetic field strength is generated by the excitation current passing through the primary coil of the transformer. The so-called excitation current is the current that magneti...
[i=s]This post was last edited by ylyfxzsx on 2019-5-20 12:21[/i] Recently, a Japanese-made Deshi power supply (formerly Kenwood power supply) that has been in use has failed and reported the error AD...
I was quite interested in M7 before, but after getting it, I felt that it was not much more advanced than stm32F429, except for the higher main frequency and QSPI, which seemed to be the only feature....
[i=s]This post was last edited by flashtt on 2015-6-12 19:51[/i] I use 51 MCU to drive stepper motor through ULN2803. The stepper motor only vibrates. When I apply force with my hand, it will rotate. ...
Our company is engaged in chips, and I am a newcomer. I am not very familiar with these chips. I want to learn, but I don't know where to start. Please recommend some good books for me to learn, prefe...
I have a USB printer. There is only one "XX Inc. Color Printer." under "Universal Serial Bus Controllers". This device is not found under other nodes. What kind of USB device does this device belong t...
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]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
Power technology
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