[align=left][color=rgb(65, 68, 70)][font=微软雅黑, Arial, 宋体][size=12px]Efficiency Technology has spent 10 years developing a set of fully functional, mature and customized MES system. Efficiency Technolo...
I designed my own board with reference to the Ti development board. When testing the AD module, the fluctuation was very large and it could not be used. The analog ground and digital ground of the boa...
[i=s]This post was last edited by chen8710 on 2014-3-11 15:48[/i] [size=6][color=#4b0082]"ADI Simulation University" 2013 Full Year Information Collection[/color][/size][size=6][color=#4b0082] [/color...
41: What should be noted when making direct access to I/O? It should be noted that in an S7-300 configuration, if direct read access to I/O across modules is made (using this command to read several...
Characteristics and applications of STM32F0xx ADC Characteristics and applications of STM32F0xx ADC The ADC of STM32F0xx is a successive approximation type, 12 bits, with the fastest conversion time o...
I use keil uv3 programming, and #include a stdio.h mainly for using printf. It worked before, but it doesn't work these days. I didn't make any wrong operation.
The compile-time error message is as fo...
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]
Nippon Electric Works and Volvo Technology Japan have developed a wireless power supply system for electric vehicles (EVs). Using this system, the two companies have successfully conducted an exper...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[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]
0 Introduction
Wireless Sensor Network (WSN) monitors the target by deploying a large number of sensor nodes in the target area. WSN realizes the positioning and tracking of the target, determi...[Details]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]
Movpower is a portable power bank. It can charge most mobile phones and digital products, such as digital cameras, PDAs, and mobile phones such as Apple, iPod, Blackberry, Motorola, Samsung, Nokia,...[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]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[Details]
1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[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]
1 Causes of problems with electric vehicle batteries
1.1 Caused by the battery itself
Why do we say that? In the previous issue, we learned about the working princi...[Details]
Lithium iron phosphate batteries are used as lithium-ion secondary batteries. Their main application is now in power batteries, which have great advantages over NI-H and Ni-Cd batteries.
Lithi...[Details]
With the continuous development of integrated circuit technology, integrated circuits have developed from thousands of gates to the current level of millions and tens of millions of gates. The applica...[Details]
1 Theoretical Analysis
Ultrasonic waves
When propagating in a suspension, the ultrasonic waves that encounter the suspended particles are scattered and attenuated at the interface, an...[Details]
Test/Measurement
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