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The basic theory of sewage flow meter is Faraday's law of electromagnetic induction. When the conductor cuts the magnetic lines of force, an induced electromotive force will be generated in the condu...[Details]
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The selection of high-power LED lamp beads and LED point light sources should be analyzed from the following 9 aspects:
1. LED brightness
The price of LEDs will vary depending on the brightnes...[Details]
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Transplant ssh to arm Today, I referred to several senior articles on the Internet and transplanted ssh to the arm board of TQ2440. Now I don't need to use minicom to control uclinux. The serial port...[Details]
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Today I will record some knowledge points about external interrupts and the related registers and configuration process of external interrupts on 32. 1. Principle Introduction Fir...[Details]
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Prerequisites It is convenient to use KEIL5 to develop stm32. Many useless files will be generated in the process of program compilation and connection. For example, after a STM32 project is compiled...[Details]
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Abstract: The working principle of the synchronous rectifier flyback converter
and the working principle of the drive circuit
are analyzed in detail
. On this basis, a synchronous rectifi...[Details]
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According to foreign media mspoweruser, earlier, only Google Pixel devices promised to provide 3 years of operating system updates. Samsung also recently promised for the first time to provide ...[Details]
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Solving the power supply problem of integrated graphics card/discrete graphics card In the hardware industry, there is an important law, that is Moore's Law. It states that when the price rem...[Details]
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LED display screens, like other items, will inevitably encounter various problems and precautions during use. 1. Anti-static LED display assembly factories should have good anti-static measures. Sp...[Details]
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1. Interrupt sources and their interrupt flags External interrupt 0: interrupt number is 0; interrupt flag is IE0; interrupt service program entry is 0003H; Timer 0: interrupt number is 1; interrupt ...[Details]
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1. Chip heating
This is mainly for high-voltage driver chips with built-in power modulators. If the chip consumes 2mA of current and a voltage of 300V is applied to the chip, the power consump...[Details]
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Introduction
In recent years, with the rapid development of basic industries such as petrochemicals, the use of flammable, explosive and highly toxic chemicals in the production process h...[Details]
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Some netizens discovered that the second-generation smart watch vivo WATCH2 appeared in the vivo Sports Health App, and its appearance has not changed much compared to the first generation. IT...[Details]
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AC charging piles play an important role in the charging infrastructure of electric vehicles. This paper sorts out and analyzes the power supply schemes of AC charging piles, and proposes recommend...[Details]
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A single-phase to three-phase inverter is a power conversion device that converts single-phase AC power into three-phase AC power. It is widely used in industrial automation, power systems, househo...[Details]