The figure below is the voltage isolation circuit of the linear optocoupler HCNR201. R1 and R2 in the figure are feedback resistors. If the resistance values are equal, the voltage changes on both sid...
MQTT is a publish and subscribe messaging protocol based on TCP/IP . It is lightweight, simple, open and easy to implement. It is actually a message broker. The device publishes a topic and subscribes...
[i=s] This post was last edited by lb8820265 on 2019-5-9 23:11 [/i] [align=left][font=微软雅黑] Previously, we introduced two ways to use VC6 to make serial port debugging tools: [url=https://home.eeworld...
[size=4]Gradual power optimization is no longer the rule of the game for ultra-low power MCUs, but a "leap forward" mode, with many indicators related to power consumption constantly breaking records....
[i=s]This post was last edited by roc2 on 2019-10-6 17:10[/i]The first line of JAVA code is
System.out.println("Hello, World!");PHP is
echo "Hello world";And Python is
print ("Hello, World")1. Tool ma...
Let's analyze the output current value of the PLC's own 24V power supply. The output current value of each brand of PLC's own 24V DC power supply is different. We can find out from the PLC manual t...[Details]
0 Introduction Energy issues are major issues related to the stability of the entire society and the healthy development of the national economy. With the current energy shortage situation, Chin...[Details]
The existing radar imaging super-resolution algorithm is based on the two-dimensional sinusoidal signal model of the target echo signal, so the model error, especially the range movement error, wil...[Details]
There are many ways to achieve frequency modulation, which can be roughly divided into two categories, one is direct frequency modulation and the other is indirect frequency modulation. Direct frequ...[Details]
On March 31, CINNO Research released the "China Smartphone SoC Ranking in February" report, which showed that China's smartphone sales in February shrank both year-on-year and month-on-month, and the...[Details]
15.1 Overview
I2C is a two-wire, bidirectional serial bus that provides a simple and efficient method for data communication between devices. Standard I2C is a multi-master bus that incl...[Details]
Common bus technologies: The use of serial bus technology can greatly simplify the hardware design of the system, reduce the size of the system, and improve reliability. At the same time, the syste...[Details]
Electronic systems such as field communication equipment must be able to work under various power conditions, such as the universal AC (85-264V rms) or car power. These systems also need backup pow...[Details]
As the automotive industry continues to develop, the evolution of the automotive electronics EE architecture itself has led to the improvement of regional computing power, and combined with cloud com...[Details]
Characteristics of ladder diagram of PLC control system
01. Input signal and output load of PLC control system
The AC contactors and solenoid valves in the relay circuit diagram are contr...[Details]
As the world's best smartwatch company, Apple released the seventh generation of Apple Watch in September this year. Unfortunately, due to insufficient production capacity and other issues, Apple did...[Details]
1 Introduction Inverter power supplies generally use instantaneous feedback control technology to improve the dynamic response speed of the inverter power supply, reduce the harmonic content of the ...[Details]
Passive voltage probes are the most commonly used type of oscilloscope probes today. Passive probes do not contain active devices such as transistors or amplifiers, so the probe does not need to be p...[Details]
1. Admittance Refers
to the ease with which current flows in a conductor in an AC circuit, which is the reciprocal of "impedance".
2. Aluminum Nitride (AIN) It
is a relatively new cer...[Details]
According to foreign media reports, British company Blackout Technologies has launched the industry's first mobile device blocking tool, which aims to significantly reduce traffic accidents caused ...[Details]
Analog electronics
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