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The author has summarized a method of using the DT890 digital multimeter to check the crystal, which is introduced as follows: First, set the multimeter to the 20MΩ resistance range, and che...[Details]
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A digital oscilloscope is an electronic measuring instrument with unique advantages such as waveform triggering, storage, display, measurement, and waveform data analysis and processing. It is widely ...[Details]
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During the 2019 World Artificial Intelligence Conference, AI chips became one of the hottest topics, which complements the "hot" market trend. According to CCID Consulting, by 2021, the overall scal...[Details]
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#include"reg52.h" typedef unsigned char u8; typedef unsigned int u16; sbit led=P2^0; void delay(u16 i) { while(i--); } void main() { while(1) { led=0; del...[Details]
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This article is marked as a capriccio, which means that it is not a strictly structured article, but is written as I think of it. I hope readers will like this style. The following is the main text...[Details]
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ARM coprocessor cp15 has 16 registers. For details, see "ARM Architecture and Programming" Here I will briefly talk about the operation of the two coprocessors MRC and MCR, refer to the "s3c2440" com...[Details]
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At present, there are many inverter models on the market. In order to simplify management and explore the advantages of centralized procurement, many EPC manufacturers often use limited inverter mo...[Details]
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In the fiercely competitive global semiconductor market, manufacturers have been working hard to shorten the time to market. At the same time, their demand for smooth, high-resolution graphics displ...[Details]
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On April 2, the Rikai Solar Storage (Phase I) project undertaken by Shanghai Electric Energy Storage Technology Co., Ltd. was successfully connected to the grid and successfully generated the first...[Details]
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Power supply designers often face conflicting requirements. On the one hand, they need to reduce size and cost, and on the other hand, they need to provide more functions and increase output power. D...[Details]
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This article mainly introduces the body perception and positioning system. Body perception mainly perceives information such as vehicle position, driving speed, posture and orientation. The followi...[Details]
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Among various biometric technologies, fingerprint recognition technology is the most mature, accurate and easy to use. As an important part of the fingerprint recognition system, fingerprint collec...[Details]
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With the release of 5G phones such as Huawei Mate 20 X 5G and ZTE Axon 10 Pro 5G, the three major operators have also launched free trial packages, all of which include 100GB of traffic per month and...[Details]
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1 Introduction
At present, the rectifier of medium and large power UPS generally adopts phase-controlled rectifier circuit. The phase-controlled rectifier circuit has a simple structure and mat...[Details]
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LEDs have been used in electronic systems for many years, primarily as indicator lights for electronic devices. Driving
LED Lighting
The key driver of the market is the emergence of hig...[Details]