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Working principle of OTDR: Optical fiber cable testing is an important technical means for optical cable construction, maintenance, and emergency repair. Using OTDR (Optical Time Domain Reflectometer...[Details]
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1 Introduction There are many popular serial clock circuits, such as ds1302, ds1307, pcf8485, etc. These circuits have simple interfaces, low prices, and are easy to use, and are widely used. The...[Details]
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LED Principle and Control Technology
1. What is LED?
LED is the abbreviation of light-emitting diode. In the PN junction of certain semiconductor materials, when the injected minority car...[Details]
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China Electric Power Research Institute issued the latest high and low voltage ride-through certification report to Huawei Digital Energy, indicating that Huawei's photovoltaic inverters have ac...[Details]
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void Write_byte_eeprom(unsigned short address,unsigned char data)
{
while (EECR&(1 EEWE)); //等待EEWE变为0
EEAR = address;
EEDR = data;
EECR |= (1 EEMWE);
EECR |= (1 EEWE);
}
unsigned c...[Details]
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According to Yonhap News Agency, a report recently released by market research firm Omdia showed that in 2021, Samsung Electronics' market share in global TV market revenue was 29.5%, and its market ...[Details]
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In the timer circuit designed using the 555 time base circuit, the 555 time base circuit is generally connected to a monostable trigger. This connection makes the circuit design simple and only req...[Details]
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National policy Guiding Opinions of the Ministry of Industry and Information Technology and other 16 departments on promoting the development of the data security industry On January 13, 16 depa...[Details]
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Recently, Francesca Sweet, Apple's iPhone product marketing manager, discussed various issues with 5G connectivity and how they relate to the iPhone 12 in an interview. Speaking on his YouTube chan...[Details]
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Abstract
Aiming at the main failure principle and wire bonding life shortcoming of automotive IGBT modules, a power cycle test design was conducted in combination with simulation analysis. The...[Details]
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Shanghai Huansheng New Energy Technology Co., Ltd. and Hangzhou Dianzi University have successfully developed the first solar energy and fuel cell power generation complementary system and energy s...[Details]
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How to turn a 12V battery into a 6V one? Several people in the QQ group have asked this question, and I have done it before. But for some reasons, I still haven't posted it. It just so happens that...[Details]
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On December 25, the well-known mobile phone review organization DXOMARK recently announced the camera scores of Xiaomi 10T Pro 5G, with a photo score of 121 points, a zoom score of 61 points, a video...[Details]
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The military number of DS9638J/883 is 5962-8754601PA
DS9638J/883 supplier DS9638J/883 how to order DS9638J/883 price
IR msc general grade, JAN military grade, JANTX special military grade,...[Details]
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According to foreign media reports, Ford Motor Company has applied for a patent from the U.S. Patent and Trademark Office (USPTO) for an adaptive cruise control system that can be adjusted accordin...[Details]
Power technology
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