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PSRR: About Open-Loop and Closed-Loop Class D Amplifiers
In the past, the power supply rejection ratio ( PSRR ) has been a good measure of how well an amplifier rejects power supply noise. However,...[Details]
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1. The internal flash write operation of stm32 can only write two bytes, not one byte at a time 2. Erase is required before writing, and all data after erasing are FF 3. The internal flash is 512kb f...[Details]
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Lingsheng Technology Co., Ltd. (hereinafter referred to as "Lingsheng Technology") announced that Hubei Xiaomi Changjiang Industry Fund Partnership (Limited Partnership) (hereinafter referred to as...[Details]
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Over the past few years, the performance of high-brightness light-emitting diodes (HB-LEDs) has rapidly improved in terms of lumen output per package and luminous efficacy (in lm/W). Commercial 1...[Details]
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PLC control system, Programmable Logic Controller, is an electronic device designed for digital computing operations for industrial production. It uses a type of programmable memory to store progra...[Details]
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“ The first half of new energy vehicles is electrification, and the second half is intelligence.” BYD founder Wang Chuanfu said this a year ago. At present, the first half of electrification has not ...[Details]
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For the convenience of learning, I bought Mr. Wei's JZ2440 development board, because I have done projects related to STM32 and 51 single-chip microcomputers, and participated in three electron...[Details]
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Using a single-chip microcomputer, you can create various flowing light effects. I once saw someone use a STC89C52 single-chip microcomputer to connect 32 LEDs to make a heart shape, and then gave i...[Details]
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Recently, the UK's Ofcom announced the latest 5G spectrum auction results. The spectrum for this auction has a total bandwidth of 200MHz, divided into two frequency bands: • 80MHz spectrum resour...[Details]
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1. There are two types of clocks under Linux: 1.1 Real-time clock RTC It is driven by the onboard battery "Real Time Clock" also called RTC or CMOS clock, hardware clock. When the operating syste...[Details]
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I am using the TQ2440 development board, and this program is based on Wei Dongshan's. 4 LED lights The following are the drivers #include linux/module.h #include linux/kernel.h #include linux/fs.h ...[Details]
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Foreword: The concept of millimeter wave radar has recently become a hot new topic in the A-share market. Since this year, at least six 4D millimeter-wave radar companies have received financing, w...[Details]
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According to Korean media reports, LG Display said on Monday that its transparent OLED display will be unveiled on an MBC radio program on Wednesday. Although the company commercialized the transpare...[Details]
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For OLED lighting to reach the level of fluorescent lamps in terms of efficiency, its power efficiency must reach at least 70lm/W. Although OLED lighting devices with an efficiency of about 100lm/W...[Details]
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On the morning of November 5, 2024, Dalian Rongke Energy Storage Group Co., Ltd. held a donation ceremony for the Rongke Energy Storage Education Fund and Yanhui Scholarship at the Sixth Junior High S...[Details]