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Although the official release date of the Redmi flagship has not yet been announced, details about the phone are being revealed one after another. On the evening of May 6, Lu Weibing, Vice Pr...[Details]
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Today, Redmi officially announced that the Note 9 series will be released on November 26, claiming that three swords will be released at the same time. Lenovo Mobile began to promote the product by p...[Details]
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This article introduces a high-reliability photoelectric switch circuit with frequency-stabilized modulated light to resist various interferences, a high-power drive circuit and automatic gain cont...[Details]
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On June 10, FEV, a leading global provider of automotive and powertrain hardware and software development services, launched an innovative high-performance battery system using a "cell-to-module" app...[Details]
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1 MC14499 Introduction
MC14499 is a CMOS integrated block with serial input and BCD decimal output produced by Motorola. It contains BCD decoder and serial interface, and can be connected to a...[Details]
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On March 28, Introspect Technology announced the launch of the world's first GDDR7 memory test system, which supports massively parallel, 72-channel, 40 Gbps PAM3 ATE-on-Bench testing, claiming to ...[Details]
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Open drain output: The output terminal is equivalent to the collector of the transistor. A pull-up resistor is required to obtain a high level state. It is suitable for current-type driving and ...[Details]
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ON/OFF控制技术在满足严格的能效规范方面具有显著优势,例如EuP Lot 6要求。上面提到的9V电源在满载时通常可实现70%的效率,并且在整个宽负载范围内均可维持这一效率水平。PWM电源正好与此相反,其效率往往随负载的增大而减小。对于待机负载(Io=25mA),输入功率仅为115mW,230VAC,可轻松满足严格的EuP Lot 6要求。如果分别添加一个二极管、电容和电阻,从变压器偏置绕...[Details]
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The windsurfing control system adjusts the wind force and changes the windshield angle θ by controlling the fan speed. The display range is 0°~60°, the resolution is 2°, and the absolute error is ...[Details]
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Laser welding
Laser welding has many advantages such as deep melting, fast speed, and small deformation, which can greatly improve the safety of power batteries. Laser welding has the advantag...[Details]
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Simulation diagram proteus7.8 and above Program compiler: keil 4/keil 5 Programming language: C language Design number: S0056 1. Main functions: Based on 51 microcontroller AT89C51/52 (common to 51 c...[Details]
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For RF engineers, a basic and indispensable measurement tool is used at every stage of their product life cycle: spectrum analyzer or signal analyzer. Key indicators of the instrument, such as perfor...[Details]
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The ordinary multimeter pen can be made into a good anti-slip measure by adopting simple measures. The modification is very simple: find a section of the valve core of a self-confidence car, add 1~2mm...[Details]
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At about 0:50 on March 23rd, Beijing time, US President Trump officially signed a trade memorandum with China at the White House. Trump announced on the spot that tariffs may be imposed on $60 bill...[Details]
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On October 27, the 2024 China Industrial Transfer Development Matchmaking Event (Gansu) New Energy Equipment Manufacturing Industry Special Matchmaking Event was held in Lanzhou. Cheng Xiaobo, member ...[Details]