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Use the multimeter R×10KΩ to test the piezoelectric ceramics, and the needle indicates "∞", that is, the pointer does not swing. However, this cannot be used to determine the quality of the piezoelec...[Details]
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Digital is an advanced measuring instrument that has appeared in recent years. There has been a trend in the world that pocket digital multimeters have replaced traditional pointer multimeters. Becau...[Details]
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Have you ever thought about this question? When you put your phone on the table, should you put it with the screen facing up or down? If you put it down, won't the screen be scratched? No! There ar...[Details]
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Before embedded development, you must first build a cross-compilation environment, which is a development environment consisting of a compiler, a connector, and a libc library. This article uses a sp...[Details]
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/**************** Input analog signal through photoresistor to get corresponding digital signal. Small set threshold, through the threshold can control the light bulb and other equipment switch *****...[Details]
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Microchip’s 53100A Phase Noise Analyzer is a very high-quality and high-performance tool (Figure 1) that can measure the amplitude, phase, and frequency stability of RF sources. It has a wide measure...[Details]
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Previously, Xiong Junmin, Vice President of Honor Business Department (Products), touted that Honor 20 Pro is the most powerful camera phone under 5,000 yuan. Now this title is about to change hands....[Details]
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In the first quarter of 2020, global silicon wafer shipments totaled 2,920 million square inches (MSI), up 2.7% from 2,844 million square inches in the fourth quarter of 2019 and down 4.3% from the s...[Details]
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Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
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With the continuous development of high-tech, various devices have entered the high-end stage. As a reserve force, power circuits have also made significant progress. Specifically, taking a typical...[Details]
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1. ARM implementation method
ARM Cortex is the latest ARM embedded core based on the ARM7v architecture. It uses Harvard architecture and separate instruction and data buses (under the von Neu...[Details]
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The car inverter is a power electronic device that can convert the car's DC power into AC power. Therefore, in theory, the car inverter can be directly connected to the car generator to obtain 220 ...[Details]
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Have you spent a long time on failure analysis of circuit boards? Have you spent a lot of energy on sample debugging? Have you ever doubted your original correct design?
Perhaps many hardwar...[Details]
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The oscilloscope is a commonly used electronic measuring instrument, which is widely used in many industries. When we operate the oscilloscope, we also need to be proficient in the operation of the o...[Details]
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Recently, 12 200KVA 660V to 380V energy storage isolation transformers from Zhuoerfan Transformer Company were shipped to Tianjin. These transformers will provide stable power sup...[Details]