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Passive buzzers are also polar electronic components, and their control circuits are the same as those of active buzzers, as shown in the figure below. However, their sounding conditions are differ...[Details]
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On the afternoon of August 11, Vice Governor and Municipal Party Secretary Zhang Zhenfeng visited Zhejiang University Wenzhou Research Institute and toured the institute's new content based on new mat...[Details]
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Specific simulation functions: ①The start/stop button controls the start and stop of the running light; ②The automatic/manual button is used to switch between automatic mode and manual mode; ③T...[Details]
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The pursuit of high-density, low-cost, and high-efficiency energy is mankind’s eternal dream.
Whether it is coal, oil, or atomic energy, any change in human society is closely related to the e...[Details]
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After being put on the "tightening curse", the development of the entire smart electric vehicle sector is still more beneficial than harmful. After all, there is no order without rules. Sometimes, to...[Details]
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To a certain extent, 2022 can be regarded as the first year for the mass production of solid-state batteries. First, 50 Dongfeng Fengshen E70s equipped with Ganfeng Lithium Battery's first-generati...[Details]
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In large-scale power electronic equipment, as the temperature increases, the failure rate also increases. Therefore, the thermal design of high-power high-voltage inverter power devices is directly ...[Details]
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Since the release of iPhone 7, the practice of not setting up headphone jacks on mobile phones has gradually become popular in the market. Coupled with the excellent performance of AirPods, consumers...[Details]
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1. Introduction
The switching elements of high-power power electronic devices in power systems are mainly thyristors and GTOs. However, with the advent of bipolar power transistors and...[Details]
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Take two units as an example: use an analog multimeter to measure
Static measurement: put the multimeter in the multiplication 100 position, measure the resistance with the black pen connected...[Details]
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On October 24, the groundbreaking ceremony for Toyota's fuel cell R&D and production project (Phase I) was held grandly in the Beijing Economic and Technological Development Zone. This project is a...[Details]
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Earlier, there were reports that Apple was going to develop its own wireless charging pad, but this plan was officially stopped in March 2019, confirmed by Apple Senior Vice President Dan Riccio. How...[Details]
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High-precision maps have entered the era of cost-effectiveness. Huawei and Meituan have officially entered the map service industry, adding several new players to the map business controlled by BAT....[Details]
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code show as below:
@*
@File:head.S
@ Function: Set up SDRAM, put the second part of the code into SDRAM, set up the page table, start MMU,
@ Then jump to SDRAM to continue execution
@*
@hea...[Details]
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The rapid digitalization of corporate environments, the surge in complex cyber threats, the evolving security regulations, and the rise of quantum computing technology have created huge...[Details]