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This article discusses the history and design challenges of temperature measurement systems based on resistance temperature detectors (RTDs). It also covers the trade-offs in RTD selection and config...[Details]
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The modular parallel operation of inverter power supplies can greatly improve the flexibility of the system and break the limitation of inverter power levels. Users can combine the power of the sys...[Details]
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1. Background Graduated in July 2017. After completing several small projects during the probation period, I felt that I could complete some projects independently, so I took over the task ...[Details]
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What is a D-terminal interface
The D in D-terminal stands for Digital, and it is also said that it is because the interface is shaped like an inverted "D". It processes the video si...[Details]
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Digital preset circuit
The function of this circuit is to convert the keyboard key signal into a 2-bit BCD code and store it. Figure 4-6-1 is the logic diagram of the encoding and storage ...[Details]
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Today, Xiaomi held an online communication meeting, and Xiaomi Group President Wang Xiang informed the public about Xiaomi's progress in fighting the epidemic. The overall resumption rate of Xiaomi's...[Details]
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This is a fire alarm
When smoke enters the outer ionization chamber, some positive and negative ions are adsorbed in the smoke and burn to generate particles (the particles generated by co...[Details]
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Electric energy is a necessity in life, and a sudden power outage will have a great impact on our production and life. Therefore, power engineers must discover potential problems in time during daily...[Details]
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MOSFET selection in max8720 circuit
The step-down dc/dc converter circuit composed of max8720 is shown in the figure. The current conditions are vin=7~24v, vout=1.25v, Iout(max)=15a, fsw=300khz, t...[Details]
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RTC is a bit confusing because one module involves multiple modules such as RTC, BKP, and RCC, and the relationship between them is a bit vague. Please read the manual for introductory knowledge. I w...[Details]
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1. Reducing power consumption starts with MCU selection. When selecting, you should consider choosing a low-power MCU, such as MSP430, a CPU designed for low power consumption. 51 is strongly not r...[Details]
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There are a few DS18B20s lying around in the component box, but I have never tried them. I decided to use them to make an electronic thermometer. I did it right away... 1. Conceive Mega8 as the brai...[Details]
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Radio shortwave refers to electromagnetic waves with a wavelength of 10 to 100 m and a frequency of 3 to 30 MHz. Using shortwave channels for data communication has the advantages of long transmiss...[Details]
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1. System architecture diagram
1.1. Signal conditioning circuit
The functions of the signal conditioning circuit are: program-controlled amplification and superimposed DC component. The ...[Details]
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Yan'an High-tech Zone Investment Promotion Team went to Chengdu and Wenzhou to conduct investment promotion inspection activities. From October 14th to 19th, Qin Li, member of the Party Working Commit...[Details]