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According to 36Kr, Shenzhen Feixiang Technology Co., Ltd. completed a B+ round of financing with a scale of more than 100 million yuan. This round of financing was led by CICC Capital and Yuanhe Houw...[Details]
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Improvement of the circuit for measuring capacitance using DT9205 multimeter
This paper introduces a circuit and the measured results of improving the oscillator in the measurement ...[Details]
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数码博主沈义人近日发文评小米多线圈无线快充板，称小米这个多线圈无线快充板应该算是今年Apple用户最值得购买的无线充电板了，而且对比小米上一代追踪式无线充电板来说体验进步巨大。 At present, more and more mobile terminals are using wireless charging, and the issue of how to improve the ef...[Details]
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On December 1, AR optical module manufacturer Longjing Optoelectronics announced that it had completed a B3 round of financing worth tens of millions of yuan, with Hanergy Venture Capital as the inve...[Details]
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The liquid turbine flowmeter adopts a new intelligent design, which can maintain high-precision measurement when in use. The turbine flowmeter has superior performance and long service life when in u...[Details]
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Energy saving and picture quality improvement technology has always been an area where the color TV industry has been constantly pursuing innovation. With the popularity of LCD TVs , regional dim...[Details]
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Preface
This chapter is a supplement to the previous chapter. The constant voltage-frequency ratio open-loop control system in the previous chapter is implemented using the SPWM control method...[Details]
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Qorvo®, Inc. (NASDAQ: QRVO), a leading provider of RF solutions for mobile, infrastructure and aerospace and defense applications, today announced that it has joined forces with other leading wireles...[Details]
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I have been debugging the STM32 timer for several days, and I have a clear understanding of the STM32 timer. I need to measure the frequency of 4 signals and then transfer the frequency of the signal...[Details]
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Everyone has learned about the structural composition of the dual-trace oscilloscope. After understanding the structure, you can have a deeper understanding of the principle and function of the dual-...[Details]
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1.
Design
1.1
Square wave generating circuit
The 555 timer forms a multivibrator circuit
. The circuit amplitude and duty cycle are adjustable, the square wav...[Details]
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Complete list of automotive circuit diagram symbols
Automobile circuit diagram
It is a simple diagram that uses graphic symbols and text symbols to represent the composition, c...[Details]
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On June 3, 2020, the Guangdong Securities Regulatory Bureau disclosed that Enji Technology Co., Ltd. (hereinafter referred to as "Enji Technology") had completed the tutoring registration with the Gu...[Details]
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According to foreign media reports, 2Hire, a startup headquartered in Rome, Italy, announced that it has raised $6.19 million (about 43.3275 million yuan) in its Series A financing. This round of fin...[Details]
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There are many parameters for evaluating the quality of DC power supply, among which ripple is the most important parameter. The general methods for measuring ripple are oscilloscope and multimeter (...[Details]
Power technology
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