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Taking Key4 as an example, a 2ms timer interrupt is used to eliminate jitter and the key status of 8 consecutive times (16ms) is judged. If all are 1, it pops up and sets the current state of the ...[Details]
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1. Circuit working principle
As shown in the figure below. Tl is the 79 V AC (115 V/36 V) generated by the secondary winding of the transformer and resistor Rl to form a telephone ringing circuit...[Details]
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Research on improving power supply capacity of urban distribution network based on load reorganization
Jiang Jian1, Lou Jian1, Wu Shunyu1, Liu Haiqiong2
(1. Hangzhou Power Suppl...[Details]
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Not long ago, Xin Guobin, Vice Minister of the Ministry of Industry and Information Technology, said that
the density
of industrial robots
in China's manufacturing industry
has reached 322 p...[Details]
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introduction With the development of power electronics technology, nonlinear loads such as rectifiers and switching power supplies in the power grid are increasing. These power-consuming devices w...[Details]
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LED lamp bead parameter introduction: 1. Brightness LEDs have different brightness and different prices. Lamp cup: general brightness is 60-70lm; Bulb: The general brightness is 80-90lm. ...[Details]
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At the BSI 4th Internet of Everything • Wisdom Summit, Xiaomi smart cameras obtained the BSI Consumer IoT Security Kitemark certification, and the Mijia APP obtained the Mobile Application Security...[Details]
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According to the Operator Finance Network, the three major operators will commercialize 5G on September 1. Unlike Korean operators who have provided large subsidies to users to purchase mobile phones...[Details]
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The headlight meter is a special testing device used to detect headlights. It mainly consists of two parts: the automatic positioning system and the detection system. After receiving the detection ...[Details]
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Recently, scientific research teams from Beijing University of Chemical Technology and others have developed a high-performance epidermal sensor that can heal. The research results were published in ...[Details]
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According to the Xin'an Evening News, at the 5th Anhui University Innovation and Development Summit Forum, Professor Feng Donglai, an academician of the Chinese Academy of Sciences and director of th...[Details]
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To judge whether it is good or bad: set the turntable to the ( ) position, insert the red test lead into the first hole on the right, and insert the black test lead into the second hole on the right....[Details]
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In recent years, the cable TV industry has developed rapidly in China, providing viewers with a variety of TV programs and enriching our cultural life. In particular, the multifunctional value-add...[Details]
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According to the latest news from foreign media, Apple may continue to release the new iPhone 12 series in September this year, but it will not go on sale until October. A report from an investment...[Details]
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The mass production time of the low-priced version of Vision Pro has been postponed to after 2027 for some time.
Guo Mingchi said that this means that in 2025, Apple’s new head-mounted d...[Details]