1. When you encounter a beggar: If you encounter one who asks for money, give him/her some food; if you encounter one who begs for food, give him/her some money. [/size][/font][/b] [/color] [url=http:...
There is a tab control in the dialog, and in each tab's dialog there is a group box, and in the group box there is a button. The actual result now is that the tab control and the group box are display...
The ripple rate R of the inductor in the switching power supply is generally recommended to be around 0.4 as the best value? Then I started to ask?When we design the inductance value, we set an empiri...
[font=新宋体]Today, in our group (group number: [size=3][color=#ff00ff][b]309018200[/b][/color][/size], everyone is welcome to join~[/font]{:1_124:}{:1_124:}{:1_124:}[font=新宋体]) we had a very lively disc...
Confused about WinCE5.0 mounting IDE hard disk? There is a project that wants to use IDE44pin interface to mount at least 64GB external storage. Now I have the following questions to discuss with you:...
[align=left]The Atmel SAMD21 Xplained Pro development board is a platform for evaluating the ATSAMD21J18A microcontroller. The ATSAMD21J18A is based on the ARM Cortex-M0+ core, with a maximum operatin...
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]
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
Talking
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