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The endurance of electric vehicles has always received widespread attention from all parties. In fact, the endurance of electric vehicles is closely related to the battery capacity. To ...[Details]
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Whether in the laboratory, production line or teaching, power measurement is essential. So, how to perform RF power testing? Today, Antai Test will share with you. In the early days of radio develo...[Details]
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On the morning of November 22, it was reported that wearing wireless headphones like AirPods is no longer popular? Recently, the Wall Street Journal published an article titled "Why Cool Kids Ar...[Details]
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I have modified various LED desk lamps in the past two years, and I have gained some experience. Here are my two latest works. They were taken with a mobile phone, so the exposure is not good. Just...[Details]
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In order to further improve the company's layout in the new energy industry chain and enhance its core competitiveness, Jiangsu Huasheng Lithium Battery Materials Co., Ltd. (hereinafter referred to...[Details]
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1. Introduction to motor classification
1.1. Introduction to the motor
A motor is a device that can convert between electrical energy and mechanical energy. A generator converts mechanica...[Details]
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According to Jiwei.com, commercial competition between South Korea's two major battery manufacturers is intensifying. On April 2, according to Yonhap News Agency, the U.S. International Trade Commis...[Details]
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With the advent of system-on-chip technology, designs are becoming larger and more complex, while time to market is becoming more demanding. RTL is often not sufficient for this new role. These fac...[Details]
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background The overall medical electronics market was valued at approximately $3 billion in 2015 and is expected to continue growing at a CAGR of 5.4% to reach a market size of $4.41 billion by 20...[Details]
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The circuit diagram of high current output can adopt the circuit in the figure, with external transistor VT1 to expand the current, and the output voltage is determined by R4 and R5. The auxiliary op...[Details]
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Generally, the battery core of a laptop uses 10.8V or 11.1V, and a single battery cannot meet the requirements. Therefore, laptop batteries are composed of multiple single cells connected in series an...[Details]
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On July 11, HARMAN International, a wholly owned subsidiary of Samsung Electronics, announced a partnership with ARD to provide the ARD Audiothek application in the HARMAN Ignite App Store. HARMAN fo...[Details]
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When engineers use an oscilloscope to measure signals, they may find that the waveform frequencies measured under different time bases are different. If this signal is not a superimposed signal, then...[Details]
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This paper designs a level shift circuit for negative power supply. It realizes the conversion from 0~8V low voltage logic input to 8~-100V high voltage drive output. The structure and working princip...[Details]
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1 Introduction
With the rapid development of computer systems and communication equipment, the application scope of uninterruptible power supply (UPS) is becoming wider and wider. The demand...[Details]