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Whether it is Android or iPhone, most mobile phones already support NFC. One of the most commonly used functions is the transportation card. However, Apple's Apple Pay transportation card curren...[Details]
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On March 20, workers were assembling a tower in Dongxiang District, Fuzhou City, Jiangxi Province (drone photo). Recently, the first tower of the ±800 kV UHV DC transmission project from Yazhong to...[Details]
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I will never forget my first project involving electric motors.
I built a small elevator for a science project in elementary school. Sure, it worked fine during the testing phase, but failed m...[Details]
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Function of static switch: Two AC power supplies can work normally in parallel only when their frequencies and amplitudes are the same. When one AC power supply fails, a balanced current will be gene...[Details]
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This is an ideal Class AB power amplifier with perfect over-current protection and precise gain. Its power reaches 100W and the bandwidth is from DC to 100kHz. The attached figure is its complete cir...[Details]
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1. Experimental tasks
Use AT89S51 single-chip microcomputer to make a manual counter. Connect a touch switch to the P3.7 pin of the AT89S51 single-chip microcomputer as a manual counting button. Co...[Details]
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Today’s new car buyers are focusing more on the “intelligent cockpit ecosystem experience” rather than traditional features such as power and fuel consumption. The automotive industry has prioritiz...[Details]
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Friends who are familiar with power supply circuit design know that electromagnetic interference (EMI) is a big problem in the design of LED power supply. So how can we solve this problem? This...[Details]
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1. Correctly understand DC/DC converters A DC/DC converter is a voltage converter that effectively outputs a fixed voltage after converting the input voltage. DC/DC converters are divided into three ...[Details]
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2. BMP picture display test program design 1. Test program structure design (1. Purpose Confirm the understanding of BMP structure and deepen the understanding of RGB color format. Able to display a...[Details]
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1 Introduction
Interference generally enters the microcontroller system in the form of randomly occurring pulses, mainly from the alternating magnetic field and electric field coupling system ...[Details]
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#include pic.h //Call the header file. You can go to the PICC software to find the header file of the PIC16F87XA microcontroller. __CONFIG(0x3b31); //Define configuration word, crystal type: XT, enab...[Details]
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A rotary transformer (resover) consists of three windings, one rotor winding and two stator windings. The rotor winding rotates with the motor, while the stator winding is fixed and the two stators...[Details]
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According to the Times Weekly, people close to Huawei's supply chain learned that after Huawei spun off Honor, Visionox will receive large AMOLED orders from Huawei and Honor this year. The order siz...[Details]
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1 Advantages of switching regulated power supply
Low power consumption and high efficiency. In the switching voltage-stabilized power supply circuit in Figure (1), the transistor V, under ...[Details]
RF/Wirelessly
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