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As high-definition surveillance is increasingly used in the market, its role is becoming more and more important. Let us first analyze its characteristics. Analysis of NVR application character...[Details]
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In the early morning of July 14, Apple launched and started selling the MagSafe external battery for the iPhone 12 series on its official website, with a domestic price of 749 yuan. This pro...[Details]
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At the Huawei Developer Conference yesterday, Hongmeng OS 2.0 was officially released. Wang Chenglu, President of Huawei's Consumer Business Software Department, shared his views on this version. W...[Details]
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1. Use proteus to draw a simple circuit diagram for subsequent simulation 2. Programming /*********************************************************************************************************...[Details]
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On August 20, the launch meeting for the compilation of the national recommended standard "Electric Vehicle Conductive Charging and Discharging System: Vehicle External Discharge Requirements" was su...[Details]
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April 12, 2023, Beijing -
At the "Green Computer Industry Technology Seminar" hosted by the China Electronics Society, the Green Computer Standard Working Group was officially announced to be e...[Details]
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#include c8051F020.h //1s25000 pulses, frequency output mode (walk 1 meter) #define SYSCLK 2000000 #define Motol_Run PCA0CN=0x40 //: Enable PCA0 counter/timer #define Motol_stop PCA0CN=0x00 //sbit Mo...[Details]
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In the traditional power frequency parameter testing of transmission lines, three-phase autotransformers and large-capacity isolation transformers are used to provide test power, and CT and PT used ...[Details]
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According to the initial scenario in 2020, the mobile phone industry will usher in the era of 5G upgrades. After experiencing multiple quarters of declining sales, the industry expected the smartphon...[Details]
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A rotary encoder is a sensor that precisely measures angular displacement based on the principle of electromagnetic induction. There are windings in both the rotor and the stator. If a sinusoi...[Details]
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There are two ways to measure current using a digital multimeter. The first method is to use the digital multimeter directly to measure current. This requires the multimeter to be connected in seri...[Details]
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According to the latest global PC shipment report for Q1 2020 released by market research firm Canalys, PC shipments (including desktops, laptops, and professional workstations) in the first quarter ...[Details]
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I believe many people have this problem. There are only 9 pictures posted on WeChat Moments. Before posting each picture, they have to carefully select and even delete them, or use a puzzle method to...[Details]
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1. What is Power Factor Correction (PFC)?
Power factor refers to the relationship between effective power and total power consumption (apparent power), that is, the ratio of effective ...[Details]
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Basic Overview of Automotive Chips
Automotive-grade semiconductors, also known as "automotive chips," are used in areas such as vehicle control devices, vehicle-mounted monitoring devices, and...[Details]