1. Frame structure comparison
1. Similarities between 4G and 5G
The frame and subframe lengths are both 10ms and 1ms.
Minimum scheduling unit resource: RBDifferences between 2.4G and 5G
1); Subcarrier...
Popular Science: USB Type-C : https://training.eeworld.com.cn/course/4779It's very small, reversible, has multiple pins, and can charge at high currents... It's the Type-C port. Let's learn about this...
MCU Peripheral Circuit_Lao Wu MCU Practice : https://training.eeworld.com.cn/course/5323Beginners start with the development board + marquee. Although the program runs successfully, they are still con...
The development process of the violation evidence collection system
The biggest difference between the off-site traffic enforcement model and the traditional law enforcement model...[Details]
With the development of the market and people's widespread concern about environmental issues, low-cost, low standby power consumption and high-efficiency power ICs are becoming more and more popular....[Details]
In automobiles , water pumps, oil pumps, and power steering pumps are still driven directly by the engine. Using motors to drive these loads can greatly simplify mechanical design, eliminating the ne...[Details]
Shanghai, China, April 10, 2024
In the manufacturing industry, robots are well known for their ability to improve productivity. However, for companies that are committed to improving w...[Details]
On October 20, at the 2021 Yunqi Conference, Jia Yangqing, Vice President of Alibaba Group and head of Alibaba Cloud Computing Platform Division, released "Ali Lingjie", which integrates Alibaba's ov...[Details]
Tantalum capacitors Solid tantalum capacitors were first successfully developed by Bell Laboratories in the United States in 1956. They have excellent performance and are small in size but can achi...[Details]
91mobiles found the design of Google's fitness bracelet on the website of the US Patent and Trademark Office (USTPO). Of course, the patent application does not mention any name of the bracele...[Details]
Introduction
Transmitter is the foundation of automatic control system. It is not only
a sensor
for obtaining information
, but also the source of information industry. At present, ...[Details]
Recently, the distributed energy storage project in the distribution area jointly carried out by Yijun Company, Shaanxi Design Institute and Shanghai Institute was completed and put into operation....[Details]
According to the 2019 performance report released by Gree Electric Appliances, the company achieved total operating revenue of 200.508 billion yuan in 2019, a year-on-year increase of 0.24%; net prof...[Details]
When AC current is overloaded, the AC voltage applied to the load and the AC current passing through the load have a phase difference, from which people derive the concept of power factor. The elect...[Details]
1 stepper motor
The stepper motor is a purely digitally controlled motor. It converts the electrical pulse signal into an angular displacement. That is, given a pulse, the stepper motor rotates by ...[Details]
On September 22, 2023, at the 2023 Third Smart Car Domain Controller and Central Computing Platform Innovation Summit, Chen Qing, senior manager of Lantu Automotive Electronics and Electrical Hardwar...[Details]
Using LCD panels, information can be displayed in many ways. For example, how to draw the user's attention to a specific part of the LCD panel? One way that does not require any additional segments i...[Details]
A three-phase inverter is a power electronic device that converts AC power into variable frequency AC power. It is widely used in industrial automation, motor drive and other fields. In practical a...[Details]
Analogue and Mixed Signal
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