[i=s]This post was last edited by yhyworld on 2020-10-9 14:50[/i]The arbitration result is out: not a penny of compensation was received!1. The hearing was held on September 21, 2020.2. The arbitratio...
1. What is the RS-485 interface? What are its characteristics compared with the RS-232-C interface?Answer: Since the RS-232-C interface standard appeared earlier, it is inevitable that there are some ...
When I was testing the ADM2483BRWZ circuit signal recently, I found the following waveform. The blue one is the RE/DE (together control) signal, the green one is the TXD waveform, and the yellow one i...
I haven’t visited this forum for a long time. Today, I logged in by chance and found that I haven’t posted for 7 years. Thinking about it, I was still in college seven years ago, and now...After gradu...
2 assigns data 3 to 2 at the rising edge of 1. However, when observing the waveform, it is found that 2 has a small jump at the rising edge. It should have changed from -1 to 0, but an irrelevant data...
[i=s]This post was last edited by littleshrimp on 2019-5-7 20:06[/i] My AD has not responded during the gerber to PCB conversion process. I have tried several times but it still doesn't work...
Abstract: In order to realize screen display functions such as data input, display and storage on the wireless alarm system, a design method of LCD display multi-screen menu based on 4*4 keyboard int...[Details]
One is the booming Chinese-made " Gree Electric", and the other is a veteran automaker that has been weak for many years and has no hope of turning losses into profits and is on the verge of delist...[Details]
In the first quarter of 2019, TCL Group achieved operating revenue of 29.6 billion yuan, a year-on-year increase of 15.5%; of which main business revenue was 29.33 billion yuan, a year-on-year increa...[Details]
The default crystal value in the STM32F407 library file is 25MHz. If the external crystal oscillator is 8MHz, the following places need to be modified:
1) Modify the value of HSE_VALUE
Will #define...[Details]
Ministry of Industry and Information Technology Electronics No. 452
To the competent departments of industry and information technology of each province, autonomous region, municipality direc...[Details]
0 Introduction In practical applications, the design of a boost circuit is often involved. For larger power outputs, such as DC/DC boost circuits above 70W, it is difficult to achieve high power du...[Details]
The following figure is a simple mobile phone battery charger circuit. The design is simple, easy to build and inexpensive. It uses a LM78xx regulator to make the output voltage steady and stable.
...[Details]
1 Introduction
In the past 30 years, major electronic component manufacturers in the world have launched their own unique microcontroller products. In the flourishing microcontroller family, the 80...[Details]
From January 9th to 12th local time, the 2024 Consumer Electronics Show (CES 2024) in Las Vegas, USA is in full swing. Cars are undoubtedly a beautiful landscape. From complete vehicles, to smart dri...[Details]
Low-speed electric motor, a rotating machine that converts electrical energy into mechanical energy. It mainly consists of an electromagnet winding or distributed stator winding to produce a magnet...[Details]
The intelligent connected vehicle industry is a new industry that deeply integrates the automotive, electronics, information and communications, road transportation and other industries. It is a glob...[Details]
Yesterday, at the Qualcomm Snapdragon Technology Summit, Qualcomm officially released its latest processors - Snapdragon 865 and Snapdragon 765/765G. OPPO, Vivo, Xiaomi and other major manufacturers ...[Details]
1. Development History and Application Potential of LED Since its birth, LED has developed rapidly according to the "Haitz" law that the brightness increases 30 times and the price decreases 10 times ...[Details]
Improving the optocoupler circuit can improve the accuracy of zero voltage measurement.
It may seem simple to use optocouplers to establish galvanic isolation in circuits with different potent...[Details]
In order to meet the cutting requirements of users and give full play to the cutting power of the spindle motor, the spindle speed is generally divided into several gears, and the gear conversion i...[Details]
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