[align=left][color=#ff0000]Datang Telecom DTT written test questions[/color][/align][align=left]1. The sequence is 6, 10, 18, 32, "?", what is "?"? 2. Someone buys x at 70, sells it at 80, buys it bac...
I am developing an electronic design that can continuously drive the motor to rotate (about 10S); however, due to battery power supply (4.5-6V), the battery voltage drops and seriously affects the mot...
[i=s]This post was last edited by Aragorn on 2015-5-7 19:26[/i] [media=x,500,375]http://video.weibo.com/show?fid=1034:9a21b8cdd267e3763e8f53a69fe3afff[/media]...
[table=98%,rgb(238, 238, 238)] [tr][td]Use STM32F407 series MCU to drive OV2640Camera, read out 320*240 JPG picture array, now want to put time information on it, how to do it? I have never done pictu...
I have written some simulation models, and now I hope to turn them into callable modules so that I don’t have to copy them every time I use them.
Please let me know if anyone has done this before, cou...
1. What modules does an embedded system generally contain? What functions does the software generally perform? Why should we use an embedded real-time operating system? What are the benefits? 2. List ...
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]
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]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[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]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[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]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
The DisplayPort interface standard is approved by the Video Electronics Standards Association (VESA) to provide an open, scalable standard for the entire industry. The development of DisplayPort ca...[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 supply is often the most easily overlooked link in the circuit design process. In fact, as an excellent design, power supply design should be very important, which greatly affects the perfor...[Details]
DigRF
is
poised to replace the two main forms of data communication paths between RF and baseband semiconductor devices:
analog
signaling, and proprietary digital signaling (paralle...[Details]