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New display technologies bring new storytelling techniques. Recently, people have been exploring how to tell stories through new consumer technologies such as UHD-2 (8K), VR and AR. Dr. Michael Bove ...[Details]
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DMA prototype. Image credit: University of Glasgow
British scientists have developed an innovative wireless communication antenna. This digitally coded dynamic metasurface array (DMA) ...[Details]
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Meaning of three-phase asynchronous motor model
Now let's take the three-phase asynchronous motor YS series of Senli Motor as an example: the YS series belongs to the small Y series motor with...[Details]
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There are 5 16-bit timers in the s3c2440 chip, 4 of which (timer 0 to timer 3) have pulse width modulation function, that is, they all have an output pin, and the timer can be used to control the per...[Details]
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1. External factors
Radio frequency interference is transmitted in the form of spatial electromagnetic fields on conductors (leads or component pins) inside the machine, which can be attenuated by el...[Details]
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On February 24, the Zhejiang Provincial Development and Reform Commission and the Energy Bureau issued a notice on the issuance of the "Zhejiang Province's 14th Five-Year Plan New Energy Storage De...[Details]
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Wideband amplifier with 80DB logarithmic compression characteristics
Function of the circuit
The circuit using the logarithmic conversion characteristics of transistor IO and VBE can only proc...[Details]
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In 1902, the first wireless telephone device was created in a country home in Murray, Kentucky, USA, marking the earliest exploration of "mobile phone" technology by humans. This was less than 30 yea...[Details]
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Jiwei.com reported on April 16 that the price of Xiaomi TV EA 2022 was announced today. There are 7 sizes to choose from, with an initial price starting at 999 yuan and a maximum price of 4999 yuan. ...[Details]
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Wei Shaojun, chairman of the IC Design Branch of the China Semiconductor Industry Association and director of the Institute of Microelectronics at Tsinghua University, mentioned at the third "Core Po...[Details]
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China Energy Storage Network News:
Recently, the Shandong Supervision Office of the National Energy Administration announced that in April, the medium- and long-term electricity trading mec...[Details]
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1. Engine electronic control system
The engine electronic control system (EECS) electronically controls engine ignition, fuel injection, air-to-fuel ratio, exhaust emissions, etc., so that the...[Details]
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#include
#define uchar unsigned char
sbit sda=P2^0;
sbit scl=P2^1;
uchar a;
void delay()
{ ;; }
void start() //开始信号
{
sda=1;
delay();
scl=1;
delay();
sda=0;
delay();
}
...[Details]
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Agilent Technologies' MXA series signal analyzers (Figure 1) combine the functions of traditional swept spectrum analyzers and vector signal analyzers. The MXA series is positioned as a mid-range sign...[Details]
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Three-phase inverters are usually designed to drive three-phase motors, but sometimes you may need to use them for two-phase motors. However, this application is not common because the operating pr...[Details]