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The European Network Coordination Centre (RIPE NCC), one of the world's five major regional Internet registration management agencies, announced that all IPv4 addresses have been used up. The agency ...[Details]
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Beijing time, August 3, SK Hynix of South Korea has developed a 238-layer NAND flash memory chip, which can be used in PC storage devices, smartphones and servers. Last week, Micron also began shippi...[Details]
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1 Domestic research status
At present, low vibration and noise, high-efficiency blades usually adopt the design method of increasing the number of blades and twisting the blades. It is often d...[Details]
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The headache of electric vehicle batteries For electric bicycles , the development momentum is extremely rapid. In recent years, the actual output has exceeded the social ownership every year, which...[Details]
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In the current digital surveillance era, the matrix should be a product eliminated by the times, but in terms of function, the matrix is the core control equipment of the entire video surveillan...[Details]
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Torsional vibration (i.e., torsional vibration) is widely present in various rotating shaft systems, such as internal combustion engine crankshafts, generators, gear transmission chains, etc. As far ...[Details]
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Before learning to use an oscilloscope, we should learn what potential safety hazards exist in the process of using the oscilloscope, and how to avoid these unsafe operations. Today we will learn abo...[Details]
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Overview This design uses a DC-DC converter as the core to achieve power conversion from 220V mains to +60V/20A. Power factor correction technology is used in the power supply design to increase t...[Details]
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With the rapid development of flat-panel TVs, China's flat-panel TV market has entered a mature stage, and the demand for efficient and powerful switching power supplies for flat-panel TVs has also...[Details]
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#include reg51.h
#define uint unsigned int
#define uchar unsigned char
sbit rs=P2^0;
sbit of=P2^1;
fly code tab1 ={"cekongjishuyiqi"};
uchar code tab2 ={"danpianjishiyan"};
void delay...[Details]
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With the expansion of Linux applications, many people have come into contact with Linux. For those who have just come into contact with Linux, they don't know where to start. The following is a Linux...[Details]
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IRF9540.pdf
The new house is equipped with an aluminum alloy sliding door, and I finally have the opportunity to design an automatic door for myself. The human body detection part uses...[Details]
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#include reg52.h unsigned char counter=0; void delay()interrupt 1 using 1 { TL0|=0x00; TH0=0x4C; counter++; } main() { unsigned char i=1; TMOD=1; TR0=1; EA=1; ET0=1; TH0=0x4C; TL0=0x00; while(1) { ...[Details]
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What I want to talk about today is serial port communication, which I think is very important. In the future, USART, Bluetooth communication, 485, etc. will all use serial ports. Interviewers also li...[Details]
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Until zero emissions are achieved, vehicle electrification will be a key growth area for the automotive industry. To achieve this goal, automotive systems will require more semiconductors as well a...[Details]