I made a constant current source using a field effect tube (3DJ7H). The simulation passed, but the actual circuit does not produce constant current. I don't know why. Please give me some advice! Thank...
Everyone knows that iPod Touch does not have a phone or GPS module, so how does it achieve positioning?
In fact, it uses Wi-Fi positioning technology, and its principle is similar to base station posi...
Software used: proteus, SSCOM3.2, Driver XP5.1 Problem: The content of my simulation is to send data from PC to MCU, and then return the received data from MCU. When sending 00~7f (all hexadecimal num...
When the system starts, ARM reads the program from flashrom to sdram, and the program runs in sdram. Is there anything I need to pay attention to? How can I achieve this? Although I use a nor type fla...
[i=s]This post was last edited by lili0000 on 2017-3-29 22:04[/i] [align=left][b][size=5][color=#00ff00][font=宋体] Seeing everyone showing off their equipment and sharing their own experience, I also t...
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
Microcontrollers (MCUs), which are widely used in automotive electronics, are rapidly facing time and cost pressures. The main advantage of using MCUs has always been to create high-level system in...[Details]
With the continuous improvement of the requirements of intelligent building security systems and the continuous improvement of people's safety awareness, indoor anti-theft has gradually attracted peop...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[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]
LED technology has made rapid progress, and improvements in chip design and materials have promoted the development of brighter and more durable light sources, and the scope of light source applica...[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]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]
0 Introduction
In the design and construction of communication systems,
communication power supply
is called the heart of the communication system. The power supply system will dire...[Details]
Microcontrollers are something that many people want to learn about and are concerned about. In most websites, the hardware requirements are generally as follows:
1. You need a computer, prefer...[Details]
1. Introduction
Due to the good programmability and superior performance of FPGA, the number of embedded systems using FPGA chips in LCD splicing screens is increasing rapidly, especially in t...[Details]
O Introduction
Virtual instrument is a new type of instrument developed with
the development of
computer
technology, electronic measurement technology and communication technology. ...[Details]
In the industrial production process, flow measurement is a widely used measurement physical quantity. In special cases, such as vertical oil wells, when it is not easy to install probes outside the p...[Details]
: Ambiguous operators need parenthesesAmbiguous
symbol ``xxx``Argument
list syntax errorArray
bounds
missingArray
size
toolargeBad
character
in paramentersBad
file
name format in i...[Details]
With the development of my country's economy, environmental pollution caused by energy consumption is becoming more and more serious. Sulfur dioxide and nitrogen oxides emitted from coal-fired flue...[Details]
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