Jiangsu Embedded Education and Training Center is recruiting for the July Embedded Summer Class. If you have a basic knowledge of C language and want to learn more about the development and applicatio...
[font=微软雅黑][size=3]While WeChat is gradually replacing SMS, it has also become an indispensable social tool for everyone. It has become a routine for new friends to add each other on WeChat. Do you al...
I encountered some problems when making a board, and I am quite confused... The problem is this: I made a board to control a servo motor (simulated steering gear). One path of power supply directly po...
Name: Guangzhou Baijiahui Technology R&D Center Workplace: Tianhe District, Guangzhou Introduction: This center is a research and development institution integrating the design and development of soft...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:46[/i][size=5] Traditional doorbells are wired doorbells, which are easy to use and greatly facilitate everyone's life. If you live in a weal...
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
The circuit has overcharge protection, over-discharge protection, over-current protection and short-circuit protection functions. Its working principle is analyzed as follows:
1 Normal state
...[Details]
The physical interference of dc/dc switching power converters is well known unless the system and circuit diagram are carefully designed. These converters can inject unwanted charge into the electr...[Details]
Abstract Aiming at the harm caused by mobile phone microwave radiation to human body and the incompatibility between mobile communication network and fixed-line network, a PSTN voice gateway using ...[Details]
New processors in laptops place higher demands on power supplies: higher current, faster response to load steps, and faster adjustment of output voltage after the voltage identification (VID) code ...[Details]
With the development of military equipment, its functions are becoming more and more powerful, the equipment is becoming more and more complex, and the requirements for test systems are becoming highe...[Details]
1 Introduction to Wireless Broadband Communications
Since the IEEE802 working group formulated the 802-11 wireless LAN standard in 1997, wireless broadband communication based on WLAN technolo...[Details]