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According to the main circuit of the three-phase AC motor forward and reverse control in the figure below, design a PLC control system for the motor forward, stop and reverse. The control requireme...[Details]
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Keysight Technologies recently announced the release of the next generation of double pulse tester (DPT) with enhanced capabilities,
the Power Dynamic Parameter Analyzer PD1550A
, enabling ...[Details]
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Securing large areas with adequate camera coverage is a real challenge, and pan-tilt-zoom (PTZ) cameras may not provide an ideal solution for these application requirements. PTZ cameras can only ...[Details]
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Beijing, China, April 15 - Today, Poly, a leading global unified communications and collaboration company, announced the official opening of the Poly Experience Center (PEC) in Beijing. By creating a...[Details]
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Our teacher Wang has just been promoted to a master's supervisor and will start supervising graduate students next semester.
I learned from him that every time you do an experiment or practice, you ...[Details]
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A few days ago, I saw a piece of news on TV: a military fuel cell drone was exhibited at a certain aviation technology exhibition in South Korea. Since it has been exhibited, I think the South Korean...[Details]
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The I2C bus is a 2 wire bus. Data line SDA, clock line SCL. The structure is simple. AT24C04 is an EEPROM with I2C bus interface. The size is 512*8bit. The microcontroller AT89S52 itself does not hav...[Details]
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TDK has developed a new Ag (silver) laminate film that deposits a thin transparent conductive Ag alloy layer on a film substrate, which has low resistance and excellent flexibility while maintaining ...[Details]
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The first circuit principle: The AC220V voltage is half-wave rectified by D3 and filtered by C1 to obtain a voltage of about +300V. One path is added to the switch tube Q2 c pole through the prim...[Details]
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The first method: You can use the above method to judge: the larger number is the live wire, and the smaller number is the neutral wire. This method requires contact with the line or device being mea...[Details]
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Freescale's MK30X256 is a low-power 100MHz ARM Cortex™-M4 core MCU with integrated segment LCD controller, supporting up to 320 segments of LCD. The K30 family uses innovative 90nm thin-film storage (...[Details]
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introduction Modular instruments are significantly smaller than traditional instruments and fit onto circuit cards, allowing multiple cards to be inserted into a frame with a common computer interf...[Details]
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Whether a medical device can play its maximum performance in a hospital is directly related to the technical performance of the machine itself, but also has an extremely important relationship with th...[Details]
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According to the Nikkei, Huawei Technologies will invest US$800 million (about RMB 5.65 billion) to build a new factory in Sao Paulo, Brazil. The new factory is believed to produce base stations for ...[Details]
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Overview: The water flow meter calibration control system introduced here can realize the automation of the calibration process and display the corresponding process flow screen. The system has an ...[Details]
Microcontroller MCU
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