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On December 1, the maximum inter-provincial power transmission in Shanxi Province reached 10.2 million kilowatts, and the total daily power transmission reached 217 million kilowatt-hours, both of ...[Details]
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Early this morning, Apple officially released the fourth test version Beta 4 of iOS15.5 to developers. According to Apple’s frequency of “one update per week”, it is highly likely that the official v...[Details]
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The 2019 Taipei International Computer Show (COMPUTEX TAIPEI) is about to end. The research team of the Industrial Intelligence Research Institute (MIC) of the Institute for Information Industry has ...[Details]
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Today, power users are faced with countless choices , the numerous performances of power products and the long product specifications of power suppliers make purchasing power a headache. Fortunatel...[Details]
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The three major A-share indices continued to fluctuate today, and finally closed with mixed gains and losses. The Shanghai Composite Index fell 0.04% to 3501.99 points; the Shenzhen Component Index f...[Details]
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Ideal filters do not exist. In the amplitude-frequency characteristic diagram of actual filters, there should be no strict boundary between the passband and the stopband. There is a transition band be...[Details]
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K214/J77 Single-ended Headphone Amplifier
The single-ended amplifier circuit is a model of exchanging efficiency for sound quality. The circuit introduced below is a single-ended headpho...[Details]
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In recent years, with
the continuous development of
LED
technology, high-
power
semiconductor lighting
devices have developed rapidly in recent years, especially the whit...[Details]
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Here we introduce the method of using 51 single-chip microcomputer to drive stepper motor.
The driving voltage of this stepper motor is 12V, and the step angle is 7.5 degrees. One circle is 360...[Details]
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In order to analyze the relationship between the basic circuits of PWM DC/DC converters and their dual properties, we must first discuss the equivalent circuit of the PWM converter. Sometimes the c...[Details]
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On August 25, Voger Optoelectronics released its 2021 semi-annual report. The company achieved operating income of 402 million yuan, a year-on-year increase of 49.13%. The net profit attributable to ...[Details]
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Consumer electronics, such as cell phones, PDAs, digital cameras, and portable entertainment systems, are becoming smaller, faster, and cheaper, and the time to market for these new products is short...[Details]
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According to Reuters, a Huawei executive said on Wednesday local time that Huawei expects its smartphone market share in Germany to remain above 10% in the fourth quarter, and said that its new Mate ...[Details]
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OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
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In the design of the driver, we may use flush_cache_all to flush the contents of the ARM cache to the RAM, because the cache in ARM Linux is generally set to write back. Usually, DMA cannot access ...[Details]
MicroPython Open Source section
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