Jia Junpeng did not return home despite repeated calls from many netizens and “relatives”. The real reason was that he had run out of internet fees and was selling his internet number. [img]http://i3....
[font=楷体_GB2312][size=7][color=darkorange][b]I have been drawing PCB for many years and have experience in EMC testing. I am looking for a part-time job here. If anyone needs it, please contact me on ...
Input voltage range: AC110-220 Output current voltage: 12V 2A Output maximum power: 24W
The important point is that its 12V output wires are not two wires, one brown and one blue, but under the insula...
[i=s]This post was last edited by qwqwqw2088 on 2019-1-8 15:02[/i] [size=4][b]First, let's talk about synchronous rectification[/b][/size] [size=4]1. Synchronous rectification[/size] [size=4] Synchron...
The book says that rst resets once every two machine cycles. Does it reset again when the program is executed? Is it wrong in the book or I misunderstood? I am new to this, please give me some advice....
[i=s]This post was last edited by yang_alex on 2018-7-4 00:07[/i] In the previous post, I talked about code generation, which I think is very convenient. But when I compiled it, I found a big pit! Aft...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
1 Introduction
In recent years, there have been many major advances in the production technology and processes of automotive headlights, which have greatly improved the performance of automoti...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
Different initialization between C8051F and 80C51 series microcontrollers
In the past 30 years, major electronic component manufacturers in the world have launched their own unique single-chip...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
At present, a large number of cooling tower fans, speed fans and special fans are in use in petroleum, chemical, pharmaceutical, metallurgical and other enterprises. Some fans have no monitoring in...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
Almost everyone in a student dormitory has a bedside lamp. But if you want to read for a while after turning off the lights and don't want to disturb your roommates' sleep, you may need a reading l...[Details]
The fluorescent lamps and energy-saving lamps we commonly use now have greatly improved luminous efficiency compared with the earlier ordinary incandescent lamps and have been widely used. With the...[Details]
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