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void main()//main function { delay1ms(1000); lcd_init();//LCD display initialization init_play(); while(1) { EA=0; //Since DS18B20 has high timing r...[Details]
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As we all know, any closed-loop system with a gain of unity gain l and an internal phase shift of 360° with frequency will have the possibility of instability. Therefore, almost all switching power su...[Details]
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The ATmega168 status register contains information about the results of the most recently executed arithmetic instruction. This information can be used to change the program flow to implement conditi...[Details]
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In recent years, some special properties of polymer dispersed liquid crystal (PDLC) have been widely used. Based on the current theoretical research results of PDLC, this paper explores and studies...[Details]
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The energy (power) carried by each unit frequency point in the working frequency band of wireless communication products is called power spectral density (PSD). Generally speaking, this energy is ...[Details]
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Dimmable fluorescent lamps have obvious power-saving effects, so they have been rapidly developed and applied in recent years. Fluorescent lamps are low-voltage gas discharge lamps and non-resistive l...[Details]
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According to the 2019 Global Lithium-ion Battery Pack Price Survey Report released yesterday by research firm Bloomberg New Energy Finance (BNEF), the average price of global lithium-ion battery pack...[Details]
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There are many different seemingly plausible opinions on this issue. Some people say: In the volt-ampere characteristics of LED, the voltage is fixed, and the current is also fixed. So the effect of ...[Details]
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German "Car Review", February 17, 2023 Author: Luca Leicht Compiled by: Dr. Liu Xiaoyi, CEO of Guanyu Mechanical and Electrical Technology (Shanghai) Co., Ltd. While Tesla has always used round...[Details]
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1-8-3-5. Advantages and disadvantages of full-bridge transformer switching power supply
The full-bridge transformer switching power supply is the same as the push-pull transformer switchin...[Details]
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Micron Launches World’s First 176-Layer NAND Mobile Solution to Enable Ultra-Fast 5G Experience
Advanced 3D NAND technology is applied to Micron's mobile storage products to cr...[Details]
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A multimeter (abbreviated as a multi-function, multi-range, portable instrument. It can be used to measure physical quantities such as DC current, voltage, AC current, voltage, resistance, audio leve...[Details]
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Warm congratulations! The regional selection competitions for the 2023 China University Student Entrepreneurship Competition concluded successfully Starting from September 22, the selection com...[Details]
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With the development of economy and the progress of society, people have put forward higher and higher requirements for energy. Finding new energy has become an urgent issue facing mankind. Since so...[Details]
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Recently I saw an article about a self-made multimeter on the Internet. I thought it was good, so I translated it and recommended it to my colleagues. Of course, my level is limited, so please correc...[Details]