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1. Introduction This module is a submodule of our "Elderly Care System Based on the Internet of Things". The function it implements is: when an abnormal temperature is detected, it calls or se...[Details]
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1 Introduction
In recent years, with the rapid development of medical technology, nuclear magnetic resonance (NMR) has been widely used in large and medium-sized hospitals. At present, in the p...[Details]
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In measuring some CATV system indicators, spectrum analyzers are often used. In order to make the measurement results accurate, the use of spectrum analyzers often involves the problem of setting the...[Details]
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Wireless ward caller host keyboard circuit diagram The host needs a total of 2 keyboards, namely the check key and the delete key. See the figure for the connection diagram.
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I accidentally discovered that the size of the structure I defined was different from what I expected, so I traced the root cause. After a series of experiments, I found that ARM has some inherent pra...[Details]
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In recent years, there are more and more portable electronic products with single-chip microcomputer as the core. In order to extend the service life of the battery (or the interval of charging tim...[Details]
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Since the end of April, A-share listed companies have released their 2020 annual financial reports and 2021 first quarter financial reports. Some companies with significant performance increases have...[Details]
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Today we will introduce the servo motor brake system. In servo system control, the brake is generally not used frequently, and the servo motor itself has better braking performance.
For the 22...[Details]
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Life detectors have appeared in people's vision for a long time. They have been of great help in many rescue situations, leaving a chance for life. Especially during the Wenchuan earthquake, life de...[Details]
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1. Resistors Two design considerations 1) Resistance 2) Rated power of the resistor: If the calculated applied power is P, then the selected resistor should be (1.5-2) P, leaving room for Four poin...[Details]
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1 Introduction
The DC/DC converter is a highly nonlinear circuit. The electrical parameters of the circuit are uncertain, and the load properties are also variable. The performance of the main ...[Details]
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Samsung today (4) released its latest mobile processor, Exynos 980, which has an integrated 5G baseband. Based on advanced 8 nanometer (nm) FinFET process technology, the Exynos 980 is Samsung's fir...[Details]
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The oscilloscope is a precision electronic measuring instrument with a wide range of uses. It is widely used in scientific research fields and laboratories. However, such instruments are currently co...[Details]
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The figure shows a single current source mode drive circuit. In this single current source mode, PMOS tubes M5 and M6 form a current mirror, which can provide a constant current for the output circui...[Details]
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Recently, Xi'an Electric Power Co., Ltd. successfully signed a contract to export energy storage container projects to GE of the United States, with the first batch of orders of 28 sets. This p...[Details]
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