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Modbus is a serial communication protocol invented by Modicon for communication between its PLC and host. Its physical layer adopts asynchronous serial standards such as RS232 and 485. Due to its o...[Details]
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"For all car companies that want to share in the new energy mid-range and above market, one thing they must understand is that when the driving experience of pure electric drive becomes more and more...[Details]
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O Introduction
Commonly used thermometers can be divided into the following types according to their materials and uses: glass mercury thermometers, which are accurate and inexpensive, but...[Details]
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In order to increase the repetition frequency of the power supply, a high reverse voltage transistor and a diode are added. As shown in the figure above. In the figure above, the resistor R1 is the a...[Details]
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0 Preface
Digital tube displays are often used in the design and production of instruments and meters, and sometimes there are many digital tubes. If a separate drive circuit is designed for ea...[Details]
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Watchdog timer principle: The watchdog will get hungry at a certain interval and will bark every time it is hungry. If you don't want it to bark, just feed the dog every 3 hours. The controller wi...[Details]
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There are many kinds of designs for photovoltaic inverter power systems on the Internet. Designers can read and study according to different needs, but sometimes the finished products designed base...[Details]
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Recently, Nokia officially announced that the Nokia 105 model has won the world's first place. According to the data from January to September of the global mobile phone quarterly tracking report of ...[Details]
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1. Introduction to SPI Bus SPI (serial peripheral interface ) bus technology is a synchronous serial interface introduced by Motorola . It is used for full-duplex, synchronous serial communicatio...[Details]
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Preface I mentioned earlier that the timer function of STM32 is very powerful. Today, let's summarize another "powerful" function of it: TIM's comparison output function, which outputs adjustable PW...[Details]
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1 Introduction
In the prior art, the switching cabinet, control cabinet,
transformer cabinet
, and variable frequency power unit cabinet of the frequency converter are...[Details]
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Abstract: A new semi-lossy electronic watermarking system for image authentication is proposed. The watermarking scheme adopts the space-frequency domain analysis method based on wavelet transfo...[Details]
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The ranges of the two memory regions that support bit-banding operations are: 0x2000_0000-0x200F_FFFF (lowest 1MB in the SRAM area) 0x4000_0000-0x400F_FFFF (lowest 1MB i...[Details]
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Since the STM8 microcontroller itself has a small memory, and the system's own printf() function takes up a lot of space, sometimes using the printf() function in a slightly larger project will cau...[Details]
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Currently, battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs) operate at 800V battery voltage, exceeding the conventional 400V range. The adoption of 800V batteries is in...[Details]
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