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1. Composition and working principle of electronic shift lever system
1. Structural composition of electronic shift lever system The electronic shift lever system is a shift control system th...[Details]
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The motor drive system is one of the key components of electric vehicles. The permanent magnet synchronous motor (PMSM) has excellent servo speed regulation performance, and removes the mechanical com...[Details]
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Lenovo Group today announced its first fiscal quarter results ending June 30, 2019: quarterly revenue of US$12.512 billion (approximately RMB 85.3 billion), a year-on-year increase of 5%; net profit ...[Details]
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In order to improve the effect of driving synchronous rectification MOSFET, various modes of synchronous rectification control driver ICs have been designed, and many achievements have been made. It...[Details]
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STC89C52RC is an enhanced MCS-51 microcontroller from Hongjing Company.
Compared with Atmel's AT89C52, it has the following advantages:
(1) Supports STC's 2-wire download method, making pr...[Details]
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My wife, who has always been worried about her children's sleep and wants to turn everyone's mobile phone to silent mode, has recently become crazy about setting alarms. Whenever the crisp ringtones ...[Details]
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The construction of ubiquitous power Internet of Things is the foothold for State Grid Corporation of China to implement the decisions and deployments of the Party Central Committee. It reflects th...[Details]
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introduction With the popularity of computers and the widespread application of information processing technology, uninterruptible power supplies (UPS) play an important role in connecting critic...[Details]
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Working principle: A certain current is added to the measured resistor RX through a constant current source, and then the voltage across Rx is measured with a multimeter. The measured voltage value i...[Details]
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Nondestructive testing uses the sound, light, magnetism and electricity of materials to detect whether there are defects or unevenness in the object being tested, and gives information such as the siz...[Details]
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There is still a long time before Samsung's flagship S21 series is launched next year (expected to be launched in February), but some reliable information about the device has arrived. Recently, 3C c...[Details]
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Gas concentration collection front end : In the research of comprehensive application platform, the main purpose is to avoid disasters caused by excessive gas concentration. Therefore, the accurac...[Details]
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The lidar industry has been a bit lively recently. In less than a week, the two largest domestic lidar companies have released their respective solid-state blind-filling lidar products. On November...[Details]
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Wang Jiangping, member of the Party Leadership Group and Vice Minister of the Ministry of Industry and Information Technology, hosted a symposium on the operation of industrial economy in the first h...[Details]
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Single-phase full-bridge PWM rectifier circuit
Figure 1 Single-phase full-bridge PWM rectifier circuit
The figure shows the principle block diagram of the single-phase PWM rectifier circuit. I...[Details]
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