[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:59[/i] [align=left][font=宋体][size=4]Traditional air purification products are either made up of chemical ingredients, or have toxic sid...
[i=s]This post was last edited by dominating on 2017-11-4 21:47[/i] In the LC filter design in the book, the capacitor and inductor values of the filter are very accurate. In reality, there are no suc...
It seemed that I couldn't connect to the website at all on the National Day. In the following days, when I opened it, I first jumped to the garbage website of Dongfang Hongyun. After closing everythin...
Shanghai American-funded enterprises are recruiting 2 RF engineers, with more than 2 years of relevant work experience (wireless, antenna industry). If you want to know more, you can send me a message...
This is the second stage, 1-2 years old. This stage is characterized by shyness. When we went to Xiamen for a trip, he kept hiding behind me. I love carrotsThe TV is so goodDo you want this?Xiamen Sea...
I want to route a BGA chip with a pitch of 0.8mm. The line width between the chip pins is 5mil, and then the line width is changed to 10mil after it is led outside the chip. Will this change in line w...
When the WDP500-2A plane grating monochromator is used to test the emission wavelength of a high-power laser diode at different currents, the matching of the laser diode has the disadvantages of lo...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[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]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
0 Introduction
With the rise and continuous improvement of the solid-state lighting industry, light-emitting diodes (LEDs) have become an alternative lighting technology and are gr...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[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]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
Capacitance Measurement
Used to verify that capacitors meet the manufacturer's specifications. For quality control, a group of capacitors may be placed in an environmental chamber and the cap...[Details]
Introduction
Automakers are working to reduce vehicle weight to reduce CO2 emissions and improve fuel efficiency. Designers are therefore seeking new technologies and design techniques that can...[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]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
The invention of the steam engine ushered in the first conversion of internal energy and mechanical energy for mankind, and the birth of the internal combustion engine at the end of the 19th centur...[Details]
In industry, voltage 0…5 (10) V or current 0 (4)…20 mA is usually used as a method for analog signal transmission, which is also a method often used by programmable controllers. So what are the dif...[Details]