Microcontrollers MCU are usually considered digital devices. By default, their output voltage level is either high or low, not a neutral value. To achieve the requirement of LED brightness control, th...
Using a 5V2A adapter, a lithium battery is fully charged to 4.1V, but the charging current is less than 200mA, the charging speed is too slow. See the picture, please improve...
[i=s] This post was last edited by dontium on 2015-1-23 11:31 [/i] [b]1. What is the function of adding a small resistor to the output of the op amp? [/b] Answer: The protection method for short-circu...
[i=s]This post was last edited by ohahaha on 2015-12-4 14:21[/i] [color=rgb(62,62,62)][align=left][Repost] If someone asks "Is there a universal grounding method that can be used as a reference?" I wi...
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[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]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[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]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
Today's automotive application developers face numerous design challenges as modern cars add more electronic functionality, while the need for lower power consumption and smaller printed circuit bo...[Details]
As the electromagnetic environment in space becomes increasingly complex, the shielded cables used to transmit weak signals in the test system are easily affected by external electromagnetic distur...[Details]
According to the National Shipbuilding Industry Economic Research Center, the total shipbuilding capacity in my country last year was about 9×106t. The new ship orders exceeded 17×106t, accounting ...[Details]
1. Introduction
Diesel engine test is the last key process in the diesel engine production process, which plays a very important role in the manufacturing quality of diesel engines. Its main c...[Details]
1 Introduction
In recent years, the application of LED display screens has developed rapidly, promoting the progress of LED driver ICs. Based on the high reliability of LEDs and the consistenc...[Details]
0 Introduction
In 2008, the Science and Technology Olympics is a very important aspect, and the timing and scoring system is of utmost importance in the competition. It can be said that a good...[Details]
Fast charging of batteries for electric vehicles is an important topic in the research and development of electric vehicles. Although many practical charging devices or commercial chargers have the...[Details]
With the development of communication technology, traditional analog walkie-talkies can no longer meet people's needs, and the digitization of walkie-talkies is imperative. The rapid development of...[Details]
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