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基于仪器和运算放大器的传统 电流源和电压/电流转换器在低频下提供很高的输出阻抗，这是因为放大器具有良好的低频 CMRR（共模抑制比）。在较高频率下，降低的 CMRR、固有的输出电容、转换率的局限性阻止了高质量电流源的实现。Analog Devices 公司的两款 200 MHz线路接收/放大 IC——AD8129 和 AD8130——提供了差分输入和显著的 CMRR，使它们成为构建高频恒流源的有...[Details]
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Abstract: The effect of silver additives on battery performance was studied. Experiments show that adding 3% silver additives to the hydrogen storage electrode slightly increases the electrode capa...[Details]
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According to foreign media 91Mobiles, Xiaomi's mobile phone brand POCO is about to launch two mobile phones in the X4 series. The phone models have appeared in the IMEI database, which means t...[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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For the TV industry, the year 2020, which is about to pass, is a year of great change. According to statistics, in the context of the pandemic, the postponement of major events, and social isolation,...[Details]
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On April 25, Dongshan Precision disclosed its first quarter report of 2021, achieving operating income of 7.508 billion yuan, a year-on-year increase of 46.34%, mainly due to the increase in customer...[Details]
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Neinengxinnengzi〔2023〕No.1109
Ordos Municipal Energy Bureau, Inner Mongolia Electric Power (Group) Co., Ltd.:
In accordance with the relevant requirements of the "Inner Mongolia Autonomou...[Details]
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Through theoretical analysis and experimental verification, it can be seen that the information returned by the first and second layers mainly includes the road surface, lane lines, a small amount ...[Details]
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Recently, automotive and industrial semiconductor manufacturer NXP announced the launch of a new automotive ultra-wideband chip (UWB). This technology provides accurate, secure, and real-time positio...[Details]
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Leather rubbing color fastness tester, testing machine Introduction This instrument is used to test the rubbing fastness of the leather surface and evaluate the transfer of color by determining the d...[Details]
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New design challenge encourages element14 community members to upcycle e-waste into IoT connected projects Shanghai, China, September 15, 2023 - element14, a global distributor of electronic compon...[Details]
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9W, 800 lumen LED bulbs are used to replace 60W incandescent bulbs. They have huge market prospects and higher profit margins than 5-7W LED bulbs.
On the other hand, we also noticed that manuf...[Details]
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As the brightness increases and the price decreases, the market potential of white light LED in the field of general lighting is growing. The use of white light LED in the general lighting industry...[Details]
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iMEMS accelerometer ADXL345
iMEMS semiconductor technology integrates micro-mechanical structures and electronic circuits on the same chip. iMEMS accelerometers use this technology to measure sin...[Details]
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With the development of modern commerce and finance, the proportion of electronic payment and card consumption is increasing. In order to adapt to this change, UnionPay Center and commercial banks ...[Details]
Test/Measurement
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