This is my first time working on a switch project, so I don't know much about it. If I use an electromagnetic relay to control it, what model should I use? I use the STC89C52 microcontroller. If possi...
Siemens motor, 200kW, used in the crane industry. Under rated load, there is no problem with ascending; but under rated load, the inverter reports a fault (motor overcurrent) as soon as it descends. W...
How many electronic engineers are there in China? What kind of people are they? What are their preferences? Where do they buy electronic components? What kind of information services do they need? Whi...
Event details: https://www.eeworld.com.cn/zhuanti/20101201TI/index.htmlCongratulations to the winners. Please contact soso as soon as possible by email: tanghonglin@eeworld.com.cn Send your forum ID, ...
In the map.h file, there are two ways to set the base address of a peripheral, depending on whether it is debug mode or not. Take GPIOA as an example: #ifndef debug #ifdef _GPIOA #define GPIOA (GPIO_T...
[i=s]This post was last edited by qwqwqw2088 on 2021-2-7 22:09[/i]Balun (Balun: Balance-UnBalance) can achieve the conversion between single-ended and differential structures. However, the cheapest ba...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[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]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[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]
To differentiate their products in a crowded and competitive market, manufacturers of handheld devices often consider battery life and power management as key selling points for cell phones, PDAs, ...[Details]
July 11, 2012, Beijing - Altera Corporation (NASDAQ: ALTR) today announced the launch of 40-Gbps Ethernet (40GbE) and 100-Gbps Ethernet (100GbE) intellectual property (IP) core products. These core...[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]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
In the single-chip microcomputer system, in addition to display devices, sound devices are often used, and the most common sound device is the buzzer. Buzzers are generally used for some low-demand...[Details]
MCU
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