[i=s] This post was last edited by paulhyde on 2014-9-15 09:46 [/i] It contains questions for both undergraduate and junior college students. The undergraduate questions are slightly more difficult an...
How should I put it? Whether you are employed or not, I hope we can have a good communication. After all, maybe the position here is more suitable for you. The most important thing is that the company...
When compiling the project with Altium, the following error occurs [Error] Serial port.SchDoc [color=#FF0000]Compiler 3V3 contains Open Collector Pin and Power Pin objects [/color](Pin CN3-1,Pin CN3-2...
At first, I used STM32CubeMX software to develop software, and it turned out that it supports MDK5.10. I am a lazy person, and I have been using MDK version 4.22. I think it is good and stable, so I a...
Does anyone know? It is not written on the circuit diagram. In addition, there is a concave negative character under the ceramic antenna (bottom layer). Is it made by the PCB manufacturer? How can I d...
How to use DMA to operate non-contiguous memory blocks without frequent interruptions? For example, a buffer A of 800*600*2 bytes, use DMA to move the odd rows of A (800*600*2 is a display buffer, whi...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[Details]
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
When choosing a laptop battery, you should consider several factors, such as power, appearance, and quality.
Regarding power, we often see that a manufacturer uses values such as the number ...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
1. Introduction
Testing the temperature of steel billets before rolling is an important measure to ensure the quality of steel. Traditional manual testing is difficult to ensure product qu...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
Temperature compensated quartz crystal oscillator (TCXO) is widely used as a high-precision frequency source in communication systems, radar navigation systems, precision measurement and control sy...[Details]
0 Introduction
In order to improve the automation control of shortwave transmitters, so that they can automatically process from far to near, the technicians here use the ICS system to complete the ...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
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