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In the rectification of switching power supply EMI, the causes and suppression methods of interference in different frequency bands are as follows:
Within 1MHZ - mainly differential mode interferen...[Details]
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According to statistics from the International Energy Network/PV Headlines (PV-2005), from February 1 to February 28, about 23 inverter bidding projects were finalized, with a total capacity of 27....[Details]
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ALIAS: serial port update code. Used for project: mini oscilloscope There are three ways to start STM32: Download flash loader demonsrtation v2.50 from ST official website to update the program. ...[Details]
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There are generally three methods for digital multimeters to measure resistance:
(1) The constant current voltage drop method is used. The advantage of this method is that it ensures linear measureme...[Details]
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With the development of information detection technology and control technology, humanoid robot motion control has shifted from traditional offline planning method research to real-time control resear...[Details]
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The 2019 China International Industry Fair was successfully held at the Shanghai Convention and Exhibition Center from September 17 to 21. Delta showed up at a 200 -square-meter large booth, showcasi...[Details]
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With the development of power electronics technology, the requirements for signals are getting higher and higher. In some cases, the frequency, phase and distortion of the signal are required to ...[Details]
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STM8S's PB4 and PB5 are I2C function pins. There are no pull -up resistance inside. It is true OC. As a control output, it can add a 10K to a 10K resistance to enhance the driver. PB4/PB5 only have...[Details]
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The telephone callback device is controlled by a single-chip microcomputer and has the advantages of simple circuit, reliable contact and easy use.
1. Working Principle
The circuit is sho...[Details]
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In the era of fuel vehicles, we pay close attention to the power combination of engine and gearbox.
Entering the era of electric drive, although people are still concerned about the vehicle's ...[Details]
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Sina Digital News reported on the evening of December 28 that Xiaomi held a new product launch conference in Beijing, releasing new products such as the new flagship mobile phone Xiaomi 11. Xi...[Details]
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Commonly used infrared light-emitting diodes (such as SE303·PH303) are similar in appearance to light-emitting diodes (LEDs) and emit infrared light (near infrared is about 0.93μm). The tube voltag...[Details]
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My company is Hangzhou Shuyuan Electric Power Technology. We are a company that provides electric power cloud platforms. Today, I will share some thoughts on ubiquitous Internet of Things business ...[Details]
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Fault phenomenon Current 1A range, output is uncontrolled. Testing process Upon inspection, it was found that multiple components of the instrument control board were damaged and had poor performan...[Details]
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In order to focus on the development of the "Five 100" projects and the new energy storage materials industry and effectively promote the implementation of project construction, on the morning of M...[Details]
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