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Samuel Morse's invention of the telegraph in 1845 marked the beginning of digital electronic communications. His famous code of dots and dashes represented the binary (0/1) encoding of the electric cu...[Details]
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1 Introduction Distribution transformers are the basis for connecting power grids and users. Their operating conditions are directly related to whether users can use electricity reliably. Therefore, ...[Details]
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When I was reading the data sheet recently, I found that there are 8 types of GPIO configurations in Cortex-M3:
(1) GPIO_Mode_AIN analog input (2) GPIO_Mode_IN_FLOATING floating input (3) GPIO_Mode...[Details]
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Some time ago, I saw the news that Tesla's factory in China was going to cooperate with LG. I felt deeply that I had knowledge gaps in the battery field, so I spent some time collecting information o...[Details]
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Facebook Inc removed a popular Wall Street discussion group, Robinhood Stock Traders, after its founder said on Thursday the move was a pushback against discussions this week that drove up the share ...[Details]
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On December 18, Zhongjing Technology was listed on the SME board of the Shenzhen Stock Exchange. The company's stock code is 003026, the issue price is 13.89 yuan per share, and the issue price-earni...[Details]
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1 Introduction to CMOS Detector
Radiographic detection technology uses X-rays to detect discontinuities inside materials and displays images on recording media. With the continuous advancement of...[Details]
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1. When repairing a switching power supply, first use a multimeter to check whether each power component is short-circuited, such as the power rectifier bridge, switch tube, high-frequency high-pow...[Details]
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4.1 Patterns and exceptions Exceptions occur when normal program flow is temporarily halted, such as in response to an interrupt from a peripheral. Before handling an exception, the current processor...[Details]
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1. Resistance measurement method Remove the laser diode and use a multimeter with R 1k or R 10k to measure its forward and reverse resistance values. Normally, the forward resistance value is between...[Details]
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This year's WWDC brought iPadOS, a dedicated system for iPad, which added more iPad-friendly operating logic, higher permissions, and better design. The iPad, which is always promoted as a productivi...[Details]
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1 STM32 system architecture To deeply understand the memory of STM32, you need to first know the system structure of STM32. Figure 1 is a block diagram of the STM32 system structure. Accordin...[Details]
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1. Current status of starlight-level low-light camera technology
The current security market has higher and higher requirements for the low-light performance of cameras. Not only does it need...[Details]
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New progress has been made in the research of high-performance polymer thermoelectric materials. On the 25th, the reporter learned from the Institute of Chemistry of the Chinese Academy of Sciences...[Details]
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A 300W LCDTV power supply dual-phase conversion mode (TM) power factor correction (PFC) and boost pre-converter circuit based on IC controller UCC28060. As shown in Figure 1, UCC28060 is the industr...[Details]