[i=s]This post was last edited by 574433742 on 2016-2-26 08:08[/i] [font=微软雅黑][size=4]I found something interesting. Wow, come and guess what it is. . . PS: I am just a tinkerer, please don't laugh at...
I am a novice reading books and encountered a problem. I would like to ask for your advice. When I saw the transistor current source in the early days of op amps, I had a question. In the basic BJT mi...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:38[/i] Are there any papers from previous electronic competitions here? Urgently needed! ! ! ! ! ! ! ! ! !...
root@ubuntu:~/workspace/s3c-linux.jyx# make ARCH=arm CROSS_COMPILE=arm-linux-zImange make: arm-linux-zImangegcc: command not found CHK include/linux/version.h CHK include/generated/utsrelease.h make[1...
[b]Event details>>[/b][url=https://www.eeworld.com.cn/huodong/Mentor_20190116/][b][color=blue]Quiz draw: Mentor Tessent Automotive related test solutions[/color][/b][/url] The electronic content in pa...
In this circuit, the cathode potential of diode D2 is lower than that of diode D1, so D2 is turned on first. At this time, the potential of the anode of D1 is the turn-on voltage of D2, 0.7 volts, and...
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
With the advocacy and implementation of the government's Safe City Plan, the security market has increasingly higher requirements for the clarity of surveillance images. Imagine that after a case o...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
The future energy storage hotspot is not coal or iron ore, but lithium. This lightest metal in nature may be the heaviest resource in the future energy landscape. China launched an ambitious electr...[Details]
In order to prevent the lithium battery from being damaged by abnormal conditions such as overcharge, over discharge, and overcurrent, a lithium battery protection device is usually used to prevent...[Details]
The overall operating performance of an electric car depends first on its battery system and motor drive system. The drive system of an electric car is generally composed of three main parts: a con...[Details]
0 Introduction
With the rapid development of modern power electronics technology, various power electronic devices have been widely used in various fields such as power systems, industry, an...[Details]
introduction
The Steyr diesel engine produced by Weifang Diesel Engine Factory has huge power and is one of the main power models widely used in China's heavy machinery and large trucks. In ...[Details]
Stepper motors, also called steppers, use the principles of electromagnetism to convert electrical energy into mechanical energy and have been used since the 1920s. With the increasing popularity o...[Details]