Comic: The Principle of Antenna
Mobile 5G device antenna tuning revealed
How much do you know about 5G antennas?
How were antennas invented?
[Practical Tips!] How to choose an antenna? Remember these ...
Original post: Matching of vivado version and modelsim version - Hao Xushuai's column - Sanxin Intelligence - Powered by Discuz! http://www.sxznfpga.com/forum.php?mod=viewthreadtid=272extra=page%3D1Of...
Hello everyone, I work in the inverter industry, my main job is DSP development, and I have been in the industry for less than a year.
I have recently encountered some problems at work and there is no...
More than two decades ago, engineers working on RF circuits envisioned an “ideal switch.” These switches would have ultra-low resistance when “on” and ultra-high resistance when “off.” They would also...
CC2541 has four oscillators, namely:32MHz external crystal
16MHz internal RC oscillator
32kHz external crystal
32kHz internal RC oscillatorFrom this we can see that CC2541 has its own oscillator, that...
The last time I used these two USB shields was probably ten years ago. I don’t need them anymore, so I took them apart and took a look.Use a flat-blade screwdriver to pry open a crack along the gap, t...
Zoss Automotive Research recently released the "2021 Electric Vehicle Charging Station and Charging Pile Market Research Report". The number of charging piles in the world is increasing rapidly, w...[Details]
Simple phase sequence indicator
As shown in the figure below. When in use, just connect the three wires X, Y, and Z to the three-phase circuit. The phase sequence of the three-phase A...[Details]
1. Introduction to 1602 LCD hardware interface 1602 LCD technical parameters Note: (1) Working current: The working current of the LCD is 2mA at a working voltage of 5V, which only refers to the LC...[Details]
The ignition system plays a very important role in gasoline engines. The ignition energy must be large enough as required, otherwise the mixture in the cylinder cannot be ignited; the ignition time...[Details]
First, for some basic introduction to SPI, refer to the library functions or user manuals of related chips. The following introduces the basic usage of SPI library functions and the definition of par...[Details]
The threshold level is the trigger (input) level at which the counter starts counting (i.e. measuring) a signal. This level is located in the center of the hysteresis range that represents the sensit...[Details]
LFP batteries are returning to the new energy passenger vehicle market with a brand new attitude and are moving from China to the international stage. ① Following Model 3, the standard range versio...[Details]
There are many differences between active drive and passive drive matrices in switching power supply design. Below, the author will analyze them one by one, hoping to provide some necessary help ...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
Development Trend of Human-Computer Interaction Technology in Intelligent Cockpit At present, cars have not only changed in power source, driving mode and driving experience, but also the cockpit h...[Details]
PLC is the abbreviation of "Programmable Logic Controller", which is an industrial automation control device that can automatically control the operation of machines or production equipment. The pr...[Details]
Send the contents of the accumulator ACC through the serial port. The assembly language program is as follows:
SOUT: MOV SCON,#40H; Set the serial interface to work mode
MOV TMOD,#20H; Timer T1...[Details]
STM8 multiprocessor communication Multi-processor communication can be achieved through UART (connecting several UARTs in a network). For example, a UART device can be a master device, and its TX out...[Details]
Torque motor is a kind of asynchronous motor introduced according to production requirements. In some occasions, it is even required to remain stalled for a period of time. This is due to its outpu...[Details]