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The power density of packaged LEDs has increased over the past few years, and the lifetime requirements of the modules have also increased. This has brought new requirements for improved substrate the...[Details]
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The demand for proximity detection sensors in automotive electronics applications has been steadily increasing, which can reliably detect objects approaching the sensor surface without physical ...[Details]
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Apple has previously announced that it will hold a new product launch conference at 1 a.m. Beijing time on October 14, and is expected to bring new iPhone 12 series products, including iPhone 1...[Details]
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Against the backdrop of the gradual launch of the energy storage market, CATL has continued to strengthen research and development, continuously improving product performance, and completed the devel...[Details]
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Servo motors, also known as actuator motors, are used as actuators in automatic control systems to convert received electrical signals into angular displacement or angular velocity output on the mo...[Details]
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Based on actual conditions, this article proposes appropriate solutions for overvoltage protection needs in UPS applications.
1. Changes in the concept of overvoltage protection
When ...[Details]
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According to foreign media reports, Tesla's plan to build a super factory in Berlin is making progress. Tesla has signed a contract with the Brandenburg state government to acquire approximately 740 ...[Details]
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The latest version of the free online tool, which will debut at EuMW 2024 (September 24-26, Paris, France), features a switch configuration feature.
Clacton-on-Sea, UK, September 25,...[Details]
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Apple AirTag trackers have been used in multiple tracking incidents due to their small size and ease of purchase. Apple has also taken tracking into account before. If an unknown AirTag is follo...[Details]
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Abstract: How to reasonably configure the pre-filter and post-filter for the switched capacitor filter (SCF) has always lacked systematic analysis and explanation. Based on the study of the worki...[Details]
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Washington has set its sights on the Netherlands, a small but important European country that may hold the key to China's future in manufacturing cutting-edge semiconductors. The Netherlands has a ...[Details]
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Biometrics is a technology that uses human biological characteristics to authenticate identity. It is currently recognized as the most convenient and secure identification technology. Since each pe...[Details]
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For the safety of the instrument operator and the instrument, the instrument should work normally within the safe range to ensure the measurement waveform is accurate and the data is reliable.
1...[Details]
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音箱是整个音响系统的重要组成部分，价值达全系统的一半左右所以须妥善对待。
①避免放置于阳光直接暴晒的场所，不要靠近热辐射器具，如火炉、暖气管等，也不要放置于潮湿的地方。
②音箱在连接到放大器之前，应先切断放大器的电源，以免损坏扬声器。
③与放大器的馈线连接应稳妥，在受到拉拽时不能掉下，正负极性不能接错。连接扬声器的馈线要足够粗，不宜过长，以免造成损耗和使阻尼变坏。以偏离频率...[Details]
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A composite switching power supply circuit diagram with power-off protection function
Figure 1. A composite switching power supply circuit with power-off protection function
具有掉电保护功能的复合型开关电...[Details]
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