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Asynchronous motor, also known as AC induction motor, is a type of electric motor and one of the most common types of motors. It works by applying an AC voltage to the stator windings. Unlike tradi...[Details]
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With the popularization of automobiles and the continuous development of the maintenance industry, people have put forward higher and higher requirements for the detection system of automobile bodi...[Details]
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Abstract: Based on the introduction of the theory and common implementation methods of finite impulse response (FIR) digital filters, this paper proposes an efficient implementation scheme based ...[Details]
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Foreign media found traces of the Galaxy S21 series in the Verizon version of the Samsung Galaxy S20 firmware. Three new Galaxy S21 series phones appeared in the Verizon version of the Sam...[Details]
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2020 is more than halfway through, and many companies have recently posted their "mid-term" report cards. According to Wind data, as of August 30, 3,441 companies disclosed their R&D expenditures in ...[Details]
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The LM317T in this circuit is an adjustable 3-terminal positive voltage regulator. It can provide 1.5A current in its output voltage range of 1.2~37V. The use of internal current limiting, thermal sh...[Details]
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Yesterday, Xiaomi officially released the Mi MIX Alpha surround screen concept phone, but the price of 19,999 yuan made many Mi fans feel that they couldn't afford it. Many netizens asked if there wo...[Details]
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Under the guidance of the Ministry of Industry and Information Technology, the 2019 IMT-2020 (5G) Summit, co-hosted by the IMT-2020 (5G) Promotion Group and the China Communications Standards Associa...[Details]
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1. Story about signaling testing Before the large-scale application of WiFi, most WiFi products used the method of directly embedding WiFi modules to implement WiFi functions during the development s...[Details]
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What are the basic structure, main parameters and ideal characteristics of an amplifier?
Answer: 1. Basic structure: input stage, intermediate stage, output stage, bias circuit 2. Main parameters: ...[Details]
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I am using IAR EW8051-EV-750A.
There are often errors during runtime, such as: Fatal Error : could not open source file "hal.h" D:CC2430 Tester-0.6PER-ReceiveLibrarycc2430HALsourcewait.c...[Details]
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At the Science and Technology Innovation Forum, TSMC's head of R&D and vice general manager of technology research, Huang Hansen, not only discussed the possibility of extending the semiconductor ...[Details]
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According to foreign media reports, Ceres Holographics announced the launch of the latest TD (transparent display) prototype system, which has key advantages such as full-color display, wide field of...[Details]
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At the end of the year, the construction of Anhui Conch Green Energy (All-vanadium Liquid Flow Battery Energy Storage) Jiangbei Science and Technology Industrial Park project is in full swing. ...[Details]
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Huawei has made a major breakthrough in the field of solid-state battery technology! On November 5, 2024, Huawei announced the sulfide solid-state battery patent "Doped sulfide materials and prepar...[Details]