I am making a circuit for forward and reverse rotation of a DC motor. Use DC voltage to modulate triangular wave to generate PWM. Potentiometer changes voltage to adjust duty cycle to achieve speed re...
[color=rgb(68, 68, 68)][font=Tahoma,]I am writing a program for STM8S207C8T6, and the development environment is IAR.[/font][/color] [color=rgb(68, 68, 68)][font=Tahoma,]But after a short simulation, ...
[size=4]Promiscuous mode is a term in computer networks. It means that a machine's network card can receive all data streams passing through it, regardless of whether the destination address is it. [/...
It is defined in several .s files: AREA |.constdata_div_s|, COMDEF, DATA, READONLY, ALIGN=2 I remember this is to define a local variable, right? But when compiling in wince, an error occurs: fatal er...
At the beginning of the year, I did a small-scale activity in the forum: Vote for reliable national chips - MCU: Test, test, test, which reliable national chips have the first-line forum friends detec...
DIY mobile phone + Blue Rain Night Time and calendar are indispensable! I am not very familiar with TIVA's HIBERNATE peripherals, and some data calculations still have bugs. First make the basics, the...
introduction
my country has a vast territory and a large population. The scale of housing construction is huge, and the amount of residential construction is large and wide. It is still on t...[Details]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
I. Introduction
In the field of power conversion, isolated converters (forward, flyback, and double-ended) with low output DC voltage all use MOSFET as the rectifier device. Since these devi...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1. With the development of modern industry and the continuous improvement of automation, some medium and large control systems have been greatly facilitated, which not only makes control easier, bu...[Details]
The potentiometer is an adjustable electronic component. The main functions of the potentiometer in the circuit are as follows:
1. Used as a voltage divider
A potentiometer is a continuou...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
introduction
At present, measuring instruments are developing towards networking, and each individual embedded instrument will become a node on the Internet. This system realizes the network...[Details]
Distributed Wireless Communication System (DWCS) uses distributed antennas, distributed processing control, joint signal processing and other technologies to improve the system's spectrum efficie...[Details]
For battery-powered portable devices, in addition to breaking through the limitations of processing power, the performance of portable system power supplies also needs to be continuously improved. ...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
introduction
Temperature and humidity are the main environmental parameters of industrial and agricultural production. It is of great significance to measure them accurately and timely. Using a s...[Details]
Current
measurement:
Magnetic balance Hall current
sensor
is used
. The sensor can measure AC from DC to 100kHz.
In automatic measurement and control systems, it is often nec...[Details]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]