I studied analog circuits. Now there are three main areas of analog circuits: power supply, A/D and D/A conversion, and audio chips. Which area is more promising? Thank you~! :)...
I use a 2812 to control 8 brushless motors. Of course, I need to add CPLD or FPGA or something. If I don't care about the pins, it will not be enough. Now I want to do all three loops. The current loo...
I use the if statement to operate six IO ports according to the input of three signals. Why are there no outputs on two of them (F2 and F3)? The input is D0 D1 B4, and the output is F0-F5. void Config...
A brief talk on standing wave ratio Voltage Standing Wave Ratio ( VSWR ) is the most commonly used parameter in RF technology to measure whether the matching between components is good. When amateur ...
This summary will introduce the transmitter characteristic test of TD terminal products - uplink power control. According to the 3GPP TS34.122 standard, UE uplink power control is divided into uplink ...[Details]
introduction
With the rapid development of my country's aviation industry, various new aircraft and control equipment have been successfully developed. Some previous measurement and control eq...[Details]
Lithium-ion batteries have a high energy-to-weight and energy-to-volume ratio, no memory effect, can be recharged many times, have a long service life, and are becoming increasingly cheaper. A good...[Details]
Introduction
High voltage power supply is an indispensable part of nuclear radiation detection instrument, which supplies high voltage to nuclear radiation detection devices (such as prop...[Details]
A financial analyst pointed out that the signal reception problems of Apple's 3G iPhone may be caused by some defective chips.
Richard Windsor, an analyst at Nomura Securities, said in a resea...[Details]
introduction
With the increasing popularity of Internet applications, the degree of information sharing is constantly improving. The digitization and networking of embedded devices has b...[Details]
0 Introduction
Implantable medical devices can be divided into two types: passive and active. Most passive implantable medical devices are non-electronic products, such as contact lenses, hear...[Details]
I hope my mobile phone has more functions, I hope my digital camera is smaller, I hope my Walkman can listen longer... Consumers are always full of expectations for the performance of portable electro...[Details]
Introduction
DFT (Discrete Fourier Transformation) is an important transformation tool for digital signal analysis and processing such as graphics, speech and images.
The amount of calcula...[Details]
On July 1 this year, the "Civil Airport Management Regulations" will be officially implemented. The new regulations put forward higher requirements for the safe operation of airports. At the same t...[Details]
0 Introduction
With the development of society, people's awareness of medical care is getting stronger and stronger, so the training of doctors has become a very important link. Although m...[Details]
Recently, the new version of the plasma collection management system developed by Shandong Jingyun Information Technology Co., Ltd. using Fujitsu PalmSecure palm vein identification technology was ...[Details]
0 Introduction
As a major component of intelligent transportation, vehicle navigation and positioning has become a research hotspot recently . With the global positioning system (GPS) being u...[Details]
1 Introduction
Most industrial environment temperature and humidity control systems are based on wired networks, and the monitoring program runs on a PC. The monitoring personnel need to m...[Details]
1 Introduction
In recent years, more and more substations of 35kV and above have been unmanned, and low-voltage electricity consumption in the station is the basis for ensuring the ope...[Details]
Talking about work
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