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Three-phase AC servo motors are widely used, but after long-term operation, various faults will occur. Timely identification of the cause of the fault and corresponding treatment are important task...[Details]
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1 Introduction
Modern communication technologies, such as satellite communication and airborne radar, have put forward strict requirements on the performance, volume, weight, etc. of filters. W...[Details]
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The principle of solar cells: Sunlight shines on the semiconductor pn junction, forming new hole-electron pairs. Under the action of the pn junction electric field, holes flow from the n region to ...[Details]
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At the " Autonomous Driving Sub-Forum" of the 2020 China Electric Vehicle 100 Forum held recently , Ran Bin, director of the Autonomous Driving Working Committee of the China Highway Society and dean...[Details]
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Various portable electronic products, such as cameras, camcorders, mobile phones, laptops, multimedia players, etc., require power management chips such as DC-DC converters. Such portable devices...[Details]
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“There is no such thing as a free lunch.” At the Volkswagen Brand SUV Night, when asked about the layout of the pure electric ID. series products in China, Volkswagen Brand China CEO Stephan Wöllenst...[Details]
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According to foreign media, Estonian battery startup Skeleton Technologies is developing a graphene-enhanced super battery that can fully charge the battery within 15 seconds, and the battery's capac...[Details]
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Many people have the habit of using different charging heads to charge their mobile phones, but they don’t know that doing so will damage the battery of the mobile phone. Recently, China Mobile Termi...[Details]
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Project: 431 plus photocoupler feedback flyback Phenomenon: The output voltage regulation rate is very poor, and the voltage drops significantly as the load increases. The voltage difference between...[Details]
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When multi-stage circuit coupling is used, in order to ensure the stability and selectivity of the amplifier, the resonant frequency of the first stage circuit can be set to be slightly lower than 15...[Details]
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On January 10, 2020, Hebei Electric Power Company held a launch conference for the cloud platform, data center platform, and IoT management platform (hereinafter referred to as the "three major pla...[Details]
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Abstract:
AD604 is a low-noise, high-precision, dual-channel, variable-gain amplifier produced by AD. It has the characteristic that the decibel of gain is proportional to the gain control...[Details]
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According to foreign media reports, Detroit technology company Traxen has launched an intelligent adaptive cruise control system iQ-Cruise, which is dedicated to traditional electric commercial vehic...[Details]
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1. Introduction A greenhouse is also called a hothouse. Cultivating plants in a greenhouse with constant environmental parameters can provide a more suitable growth environment for plants. A greenho...[Details]
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0 Introduction
Insulated gate bipolar transistor (IGBT) is a new type of composite device of GTR and MOSFET. Since its introduction, it has become the mainstream switching device in today's pow...[Details]