The U.S. Daily Defense reported on July 26, 2006 that Lockheed Martin and the U.S. Air Force Electronic Systems Center (ESC) have signed a joint research and development agreement (CRADA) to develop a...
On Sunday, local time on the 13th, US President Trump suddenly sent a tweet saying that he was trying to help Chinese mobile phone manufacturer ZTE return to the market. A few days ago, ZTE just said ...
First experience [url=https://bbs.eeworld.com.cn/thread-487836-1-1.html]https://bbs.eeworld.com.cn/thread-487836-1-1.html[/url] [size=4]There has been a little progress in the past two weeks, update, ...
[align=center][size=5][font=宋体]Recommendation of Classic Materials on Software Testing (V)[/font][font=Times New Roman]---[/font][/size][font=SimSun, Arial][size=5][color=#000000][b]Google Software Te...
[size=4]I have two boosters, one 4kV and the other 50kV. Unfortunately, the high voltage one didn't work at all until the hoist was already discharged and ignited. I guess it was an AC high voltage. A...
rt. I know that PDA with GPS function has operating system and many other softwares, and I can make my own softwares and then transplant them to PDA for use. But the car GPS navigator, such as Shinco ...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[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]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[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]
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]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]