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The figure shows a simple circuit and high precision adjustable voltage source circuit composed of SF741.
In the circuit shown in the figure, the operational amplifier and transistor BG1, R2, W ...[Details]
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With the development of flow detection technology, higher application requirements are put forward for flow measurement instruments. Traditional flow detection instruments generally complete the mea...[Details]
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1. ForensicaGPS facial recognition tool from Animetrics, USA
Animetrics, a leader in 3D facial recognition technology in the United States, recently launched a new facial recognition tool spe...[Details]
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The focal meter studied in this paper is an automatic focal meter based on the projection principle. However, unlike similar domestic products, the automatic focal meter studied in this paper adopts a...[Details]
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Asynchronous motors and synchronous motors are two different types of motors, with some significant differences in structure, principle and application. The following will introduce the differences...[Details]
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Abstract: This paper introduces the software and hardware design of a leakage protector tester based on a single-chip microcomputer, which realizes online automatic detection of the operating ch...[Details]
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Working principle: A certain current is added to the measured resistor RX through a constant current source, and then the voltage across Rx is measured with a multimeter. The measured voltage value i...[Details]
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On the evening of March 30, ZTE held an online launch conference for the ZTE S30 series and a new product launch night, officially launching ZTE's new S30 series 5G smartphones and a number of...[Details]
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IT Home reported on February 12 that OnePlus recently announced an OEF event on a foreign forum, announcing its next-generation system OxygenOS 13. This naming also broke the previous expectations of...[Details]
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According to Korean media reports, industry insiders revealed that South Korea's local semiconductor startup Fadu is undergoing supplier qualification certification from Apple. On April 16, sources...[Details]
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In traditional electronic measurement, multimeters, oscilloscopes, spectrum analyzers, logic analyzers and other measuring instruments are often used. In comprehensive electronic measurement, a variet...[Details]
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Abstract: According to the ITU2R BT. 656 television video coding principle, the effective data of each frame of video image is extracted through hardware decoding and transmitted to
the player
f...[Details]
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Lawyers for HSBC and Huawei Chief Financial Officer Meng Wanzhou said in a Hong Kong court that the two sides have reached an agreement in their dispute over the disclosure of documents related to U....[Details]
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Generally, a differential mode filter is added to the circuit shown in FIG1 to attenuate differential mode interference. Usually, the design of the differential mode filter is shown in FIG3.
Fi...[Details]
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Power Design Question 1: How to Evaluate a System's Power Requirements? Answer: For an actual electronic system, its power supply requirements should be carefully analyzed. Not only should we care a...[Details]
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