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I have a lot of waste lithium batteries at home, some are retired from mobile phones, and some are second-hand 18650 that are over-discharged. They can't even last 20 minutes (300ma) with conventional...[Details]
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Electromagnetic compatibility ( EMC ) is an emerging comprehensive subject, which mainly studies electromagnetic interference and anti-interference issues. Electromagnetic compatibility refers to the...[Details]
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Antenna analyzer is an instrument used to measure the characteristic parameters of antennas, and is known as "antenna multimeter". With the development of the electronic manufacturing industry, the d...[Details]
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Since Huawei released the Mate60 series of mobile phones in September last year, and now the Pura70 series has been on the market for nearly three months, the specific model of the mobile phone pro...[Details]
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Recently, according to foreign media reports, in order to reduce its dependence on chip manufacturers, Hyundai Motor said it will plan to develop chips independently. Hyundai Motor America's CEO sa...[Details]
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On the 25th of this month (next Monday), realme will release its first smart TV. As realme's online sales channel partner and India's largest online mall, Flipkart has already exposed the appearance ...[Details]
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Nubia recently preheated the upcoming Red Magic 7 gaming phone, and revealed that the phone's AnTuTu score will reach 1.1 million points, and the industry's first 165W fast charging technology. ...[Details]
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On May 28, foreign media sammobile quoted Korean insiders as saying that Samsung has placed a production order for Galaxy Fold 2 in recent days, which includes ultra-thin glass (UTG) technology...[Details]
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Some friends have shortened the battery life greatly due to improper charging methods . I would like to announce a charger circuit that I designed many years ago and have been using normally. It can ...[Details]
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In many cases, due to objective conditions, people cannot enter the scene for direct observation, and can only use more adaptable electronic imaging equipment instead. In this context, the image techn...[Details]
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Homemade AVR MCU ISP Download Cable The function of the MCU programmer is to burn the debugged program into the memory of the MCU. The cost of the AVR MCU ISP download cable introduced in this articl...[Details]
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What happens if I remove the power supply X capacitor?
There is another common feature of low-quality power supply products - various shoddy materials are cut inside, and important electroni...[Details]
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1 System Overall Design The basic circuit is driven by the MSP430F149 microcontroller to drive the peripheral sensor equipment. The soil temperature and humidity sensor (5TM), air temperature ...[Details]
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According to DigiTimes, Apple is expected to regain the second place in the global smartphone manufacturer ranking from Huawei in the fourth quarter of 2019. The ranking change is said to be caused b...[Details]
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A Brief Discussion on Digital Television and Its Measurement
Abstract: Based on the basic concept and background of digital TV, this paper introduces the main parameters and instrum...[Details]