Basic knowledge of base station antennas and network applications
1. Antenna system and base station antenna composition
2. Antenna performance indicators
3. Antenna performance index test
4. Applicat...
Scanning tunneling microscope (STM) may sound unfamiliar at first.
But its status in the scientific community is extraordinary - it allows humans to observe the local structure image of the surface la...
When I convert AD to gerber file and import it into CopperCam, the imported circuit diagram is wrong. The circuit diagram imported by CopperCam is not the circuit diagram drawn by AD. Can any expert s...
[i=s]This post was last edited by joneywei on 2018-10-11 14:50[/i] [align=left]I have received the demo board for many days, but I have not tested it. Many people in the forum have already tested it, ...
[i=s]This post was last edited by jinglixixi on 2021-9-25 13:15[/i]The ESP32-Audio-Kit audio development board, together with the library file FastLED.h, can easily control the display effect of the W...
Timer 1 of the STM8 microcontroller is a 16-bit timer Timer 1 is an advanced timer with the following main features: Timer 1 has more registers. If you only use the timing function, you don't ...[Details]
Omron Automation (China) Co., Ltd.’s new product was officially released. This product is based on Omron's thorough research on the equipment needs of Chinese OEM customers. It is independently deve...[Details]
In the single-chip microcomputer application system, low-cost and flexible digital tubes (LED) are generally used as displays. The commonly used is a 4-8-bit eight-segment LED digital tube display, wh...[Details]
Gartner: Global semiconductor revenue to grow 1.1% in 2022
The memory market performed the worst, with a 10% decline and will continue to face challenges in 2023
January 18,...[Details]
The application of switching amplifiers or Class D amplifiers in consumer audio equipment has quickly risen to a very prominent level, from MP3 players, mobile phones, game consoles, LCD-TV to hom...[Details]
Figure 2a - Equivalent circuit of Si:H solar cell
Figure 2 shows the equivalent circuit of a-Si:H solar cell. IL is the photocurrent, Id is the dark current of the diode, Rsh is the parallel res...[Details]
In recent years, China's new energy vehicle market has developed rapidly. In 2018, China's new energy vehicle production and sales both exceeded 1.2 million units, and China has become the world's la...[Details]
The picture shows the Yadi Huayu sodium power conference site The industrialization process of sodium batteries is accelerating. On March 17, the "2023 Yadi Huayu Sodium Power Conference" with t...[Details]
The MAX11811
low-power
touch screen
controller operates from a single 1.7V to 3.6V supply and is designed for power-sensitive applications such as handheld devices. The device feature...[Details]
Printf usage of multiple serial ports under STM32
The way of adding printf() to the program on the Internet is generally like this (briefly mentioned):
1. Configure GPIO, USART, RCC Configuration ...[Details]
The virtual indirect method is to virtually divide the matrix converter into two
circuits
, find the duty ratio of the switching elements in each circuit, and then convert it into the duty ...[Details]
introduction
With the rapid development of science and technology, residential intelligence is a new revolution in human housing. Families in modern society are pursuing the diversified information...[Details]
Conducted emission is one of the important issues in electromagnetic compatibility design. In order to meet the requirements of the standards for conducted emission limits, EMI filters are usually ...[Details]
Power line carrier communication uses power lines as transmission channels, and has the advantages of high channel reliability, low investment, quick results, and synchronization with power grid co...[Details]
A soft starter is an electrical device used to start a motor. It can effectively reduce the current shock when the motor starts, extend the service life of the motor, and improve the stability ...[Details]