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The VF voltage of LED light sources for lighting is very low, generally VF = 2.75-3.8V, IF is 15-1400mA; therefore, the output voltage of LED driver IC is VF XN or VF X 1, IF constant current is 15...[Details]
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On January 14, 2018, the first annual PV Summit and Growatt 2017 Customer Appreciation Meeting was successfully held at the Mission Hills Hotel in Dongguan. More than 10 industry experts, more than...[Details]
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If the feedback resistor in the inverting amplifier is replaced by a capacitor, it becomes an integrating amplifier circuit as shown in Figure 1. Resistors seem to be more real things, and the circui...[Details]
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0 Introduction LabVIEW is a graphical programming tool with a high degree of visualization. It is the first choice for beginner programmers because of its intuitive, clear, simple and easy-to-learn a...[Details]
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According to TrendForce research, benefiting from the stay-at-home economy effect derived from the epidemic, the demand for IT products has remained strong since the second quarter of last year. Howe...[Details]
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With the improvement of speaker quality, many high-power, small-caliber, wide-band high-quality speakers have been launched, which fundamentally improves the sound effect of small-volume speakers. The...[Details]
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Jiwei.com reports that domestic EDA has ushered in another important moment! On November 24, 2021, Xinhuazhang officially released 4 verification EDA products with high technical thresholds to the in...[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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Note: Maxim offers current-output DACs with a wide range of accuracy. In this article, the MAX5891 will be used as a special case for measurement and specification. However, the parameters and measur...[Details]
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On April 26, Xinlai Materials released its first quarter report of 2022, stating that in the first quarter of this year, the company achieved revenue of 629 million yuan, a year-on-year increase of 4...[Details]
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To judge whether the optocoupler is good or not, you can measure the forward and reverse resistance of its internal diode and transistor in the circuit. The following three more reliable detection me...[Details]
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On November 16, 2017, the "Energy Talk" summit, an industry event in the energy circle, was successfully held in Beijing. As the energy theme forum of the 8th Caixin Summit, "Energy Talk" has recei...[Details]
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There are many types of ultrasonic flaw detectors, but in the actual flaw detection process, pulse reflection ultrasonic flaw detectors are the most widely used. Generally, in uniform materials, t...[Details]
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Dongxing Securities believes that among the 12 measures of State Grid, three are closely related to UHV, reflecting the importance that the current core management of State Grid attaches to nationa...[Details]
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There are three interrupt signals in the EM78X56 series IC , namely: TCC overflow interrupt, PORT6 Change interrupt, and external signal interrupt. Before explaining how to use interrupts, users ...[Details]
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