Revenue statistics of the world's top 14 wafer foundries in 2005 Company Name 2005 Revenue (US$ 100 million) Headquarters TSMC 82.2 Taiwan UMC 28.2 Taiwan SMIC 11.7 Mainland China CHARTERED 11.3 Singa...
[align=left]For many people, low-frequency magnetic field interference is the most difficult interference to deal with. This interference is generated by direct current or alternating current. For exa...
Abstract: The dual closed-loop decoupling control principle of voltage-source PWM rectifier is analyzed. In view of the fact that grid disturbance and load disturbance have a great influence on the dy...
I have loved electronics since I was a child. When I grew up, I started to study electronics and now I work in the electronics industry. Cultivating interests is the most important thing. Cultivating ...
When watching Avatar, I noticed that the plants on Pandora glow at night. Normally, they emit a faint light. When someone touches them with their hands or steps on the grass, the stepped grass or touc...
Currently, I am studying a solution HTTP based on Symbian RHTTPxx framework class, which has more than 160 files and many classes. I plan to port it to WINCE platform. I am not familiar with the encap...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
1 Introduction
As an emerging microfabrication technology, micro-electromechanical system (MEMS) technology has begun to be applied in various fields. It can integrate functions such as inform...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
Flooded Batteries
This battery developed in Germany can be used to power flashlights, strobe lights and toys as long as it is filled with water. This battery can be stored for 50 years and can...[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]
Introduction
Liquid crystal, as a display device, is widely used in low-power products such as instruments, meters, and electronic equipment with its unique advantages. In the past, the displ...[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]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[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]
1 Introduction
With the rapid economic development, my country's electricity demand has been growing at a rate of more than 20% per year. According to the current economic development trend an...[Details]
PCB Design
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