[i=s]This post was last edited by qwqwqw2088 on 2020-8-19 16:53[/i]1. Parallel discharge devices.
Commonly used discharge devices include TVS, Zener diodes, varistors, gas discharge tubes, etc.1.1 Zen...
Portable energy storage power supply, also known as outdoor power supply, is a small energy storage device with a built-in lithium-ion battery. It can provide a power supply system with stable AC/DC v...
Various types of wireless communication technologies support devices to achieve data communication between devices or between devices and serial port servers without cable connection, all of which are...
The current usage is that two 12V systems from different sources share one relay (HF105F), and each 12V output is converted by a transformer and DCDC. The usage scenario is: each 12V system can drive ...
[size=3]The emulator that has been used normally on Windows 7 operating system cannot recognize the driver on Windows 7 after the emulator is upgraded to V3 firmware. After repeated attempts, there is...
According to mobile analytics firm Mixpanel, iOS 15 has been installed on an estimated 19.3% of devices since the update was released on September 20. Mixpanel measures iOS installations based on...[Details]
With the acceleration of trade globalization, some testing technologies used in American trade are gradually being applied in China. Since China joined the WTO, the testing standards for pharmaceu...[Details]
Apple today released watchOS 7.0.3, the third update to the watchOS 7 operating system released in September. watchOS 7.0.3 comes just a week after watchOS 7.0.2, a bug-fix update that addressed a ba...[Details]
China Mobile has always been a leading operator . The confidence of China Mobile actually comes from the huge mobile business (relative to fixed business) user base and huge revenue and profit (rev...[Details]
On August 3, Liu Haijun, Party Secretary and Director of the Hubei Provincial Department of Economy and Information Technology, visited the East Lake New Technology Development Zone to investigate ke...[Details]
A few days ago, "War and Peace between Car Companies and Battery Factories" became a hit. Many things in it cannot be commented on, but the interesting thing is that many of the first wave of Europea...[Details]
The China-Germany Intelligent Connected Vehicle and Smart City Cooperation Project, jointly organized by the China Academy of Information and Communications Technology (hereinafter referred to as "CA...[Details]
Biomass circulating fluidized bed boiler is a new type of boiler, which mainly burns biomass fuels such as rice husks and straws, and adopts a circulating fluidized bed combustion method. Since b...[Details]
In the past, if Huawei phones used the traditional Chinese system, the region part would display "Taiwan", while the simplified Chinese version would display "Taiwan, China". In early August this yea...[Details]
The World Intellectual Property Organization (WIPO) released the global patent application data under the Patent Cooperation Treaty (PCT) in 2019. With nearly 59,000 international patent applications...[Details]
Introduction
In traditional control systems, single-chip microcomputers are usually used as the control core and supplemented with corresponding components to form a whole. However, this meth...[Details]
1. Burn two programs and read FLASH (actual test results: there are programs in both areas, regardless of the order of burning) 1. First burn the program starting from 0x08004000 Read FLASH: o...[Details]
What are FIQ and IRQ FIQ (fast interrupt) and IRQ (normal interrupt) are two processor modes in ARM processors. ARM has 7 processing modes. Both modes are used to handle interrupts. The concept of in...[Details]
For Huawei, this is a wise decision. In the field of mobile phone operating systems, Apple's iOS and Google's Android are currently the monopoly. The iOS system is closed and only used by Apple phone...[Details]
The PT100 temperature sensor is a temperature measurement element widely used in the fields of industrial automation and process control. It has the advantages of high accuracy, good stability, and...[Details]