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"Common Mode Semiconductor" launches the high-performance low-dropout linear regulated power supply GM1200, which uses ultra-low noise and ultra-high power supply rejection ratio (PSRR) architecture ...[Details]
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With the rapid development of my country's new energy industry, the number of retired power batteries continues to rise, and the scale of the power battery recycling market continues to expand. The ne...[Details]
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After several months of promotion, AMD finally officially launched the third-generation Ryzen series processors, claiming that they are more powerful than Intel. Although actual test results show tha...[Details]
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Only small-capacity motors are allowed to adopt direct starting method. Large-capacity three-phase cage-type asynchronous motors generally adopt reduced-voltage starting method because of their lar...[Details]
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On the morning of March 17, Samsung Electronics Vice Chairman and CEO Jong-Hee Han formally apologized to the outside world for the GOS application limiting the performance of mobile phones at t...[Details]
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Zhejiang Hangzhou Power Supply Company
Zhejiang Hangzhou Power Supply Company fully implements the strategic goal of "three types and two networks, world-class" of State Grid Corporation of Ch...[Details]
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AP8264A2 High-Performance 32-bit Audio Application Processor The AP82 series audio processor is a new generation of SoC platform products designed for audio applications, suitable for traditional a...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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Jiwei.com reported on February 24 that at the MWC21 Shanghai Conference, ZTE demonstrated the world's first under-screen 3D structured light technology. So the question is, which solution did ZTE use...[Details]
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1 Overview The keyboard is a collection of push-type switches and is an indispensable input device for the microcomputer system, used to input data and commands. Each key of the keyboard is a...[Details]
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Beijing, China, December 12, 2023 – Qorvo®, the world’s leading provider of connectivity and power solutions, announced that it will showcase its latest Internet of Things (IoT), smart home, 5G, Wi-F...[Details]
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Recently, with its high safety, reliability and advanced power supply and distribution solutions, East has won the favor and recognition of Beijing Subway Operation Co., Ltd. and will escort the we...[Details]
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The megohmmeter generator handle is heavy and the output voltage is low. Possible reasons: 1. There is a short circuit in the generator circuit, which causes the circuit resistance to decrease and th...[Details]
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4. Parameter calculation and design of control circuit
4.1 Parameter determination
DC motor: PN=5.5kw, UN=220V, IN=8A, nN=1490r/min, armature circuit resistance R=0.8Ω, allowable current over...[Details]
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The circuit of a 750mW bridge-tied load audio amplifier with DC volume control composed of the LM4865 amplifier IC is shown in the figure below. The LM4865 uses an 8-pin SO package and an 8-pin micro...[Details]