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Audiophiles who pay attention to music details know that the preamplifier plays a connecting role in the audio circuit, and it has an impact on impedance matching, dynamic development, and the perf...[Details]
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The circuit diagram of the LED module of the development board is as follows: The header file for the circular left/right shift function is "intrins.h" #include reg52.h #include intrins.h #defi...[Details]
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In
the
solar
photovoltaic industry, if investment risks can be reduced and production can be achieved near the target market, logistics costs can be minimized while ensuring timely delivery, an...[Details]
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The expansion circuit of the independent keyboard is mainly used in instruments, industrial controllers, bar displays, control panels and other equipment with low real-time requirements.
The fo...[Details]
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LCR tester can accurately and stably measure various component parameters, and is mainly used to test inductance, capacitance, and resistance. It has the characteristics of direct function and easy o...[Details]
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Audio content has come a long way in the past few decades, from classic tube amplifiers to modern media players, technological advancements have changed the way digital media is consumed. Among all...[Details]
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Under normal circumstances, one cubic meter of atmosphere contains about 300ppm (=300cm³) of carbon dioxide. This amount is insignificant for plants. Greenhouse cultivation of plants has proved that w...[Details]
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At 11:08 a.m. local time on February 13, a strong earthquake of magnitude 7.3 occurred in Japan. The epicenter was located off the coast of Fukushima Prefecture and the focal depth was 55 kilometers....[Details]
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1 Introduction
There are many methods for measuring rotor speed, but most are relatively complex . Currently, there are four main methods for measuring rotational speed : mechanical, electroma...[Details]
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Using UC3906, only a few external components are needed to realize fast and accurate charging of sealed lead-acid batteries. Figure 2 shows a complete charger circuit. The resistor divider network co...[Details]
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It is reported that CATL once again topped the ChiNext with a market value of 375.1 billion yuan. Against the backdrop of a wailing stock market at the beginning of 2020, its market value has nearl...[Details]
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According to PhoneArena, Huawei Mate X may not be available before Samsung Galaxy Fold. Samsung officially announced that after "improving" the screen protection measures of Galaxy Fold, this fo...[Details]
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Shi Yudong, Chairman and Party Secretary of State Grid Liaoning Electric Power Co., Ltd.
The State Grid Corporation of China's 2019 mid-year work conference required that the significance of b...[Details]
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Working principle: The circuit of the electronic anesthesia device is shown in the figure below. Since the transistor oscillator is basically a constant current source, when there are more than two g...[Details]
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Recently, the High-tech Department of the Ministry of Science and Technology issued the "Notice on Soliciting Opinions on the 2021 Project Application Guidelines for 18 Key Special Projects including...[Details]
Analogue and Mixed Signal
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