About appearance
Now, LED fluorescent lamp power supplies are generally required by lamp manufacturers to be placed inside the lamp tube, such as in a T8 lamp tube. A very small number are placed ex...
I was very happy to receive a big package this afternoonThe first thing I saw when I opened it was a piece of paper, a letter from EEworld to the forum friends :victory:The next thing I opened was the...
My platform is PXA270+Wince5.0. Now the LCD display is strange. When I first enter the system, the display of the main screen is normal, but when I switch the screen, the screen will be partially or p...
I just received the EE-FPGA learning board yesterday and couldn't wait to start debugging. The EE-FPGA routine didn't seem to mention the problem of setting unassigned pins. What would be the impact i...
Since the PCB is limited by the installation size and the number of pins, although the transistor plus the resistor can complete the function, it takes up a large PCB area. I want to use a 485 chip wi...
1 Introduction
The multifunctional monitor is a commonly used clinical medical device. It can display the patient's electrocardiogram (ECG), respiration (RESP), blood oxygen saturation (SP...[Details]
Sensors have made inroads into automotive, medical, industrial and aerospace applications. But you may not see anything changing yet. Growing demands for safety, convenience, entertainment and efficie...[Details]
With the continuous improvement of living standards and the increase in the proportion of urban aging, the household use of medical electronic equipment has gradually become a trend. Among them, the...[Details]
At present, a hot spot for the research and development of hearing aids abroad is concentrated in China. To be more precise, it is based on the research of Chinese language and speech, and the deve...[Details]
The hardware circuit principle is shown in Figure 1. In the specific design, each part should consider the anti-interference problem to minimize the impact of interference on the performance of the...[Details]
1 Introduction
The intelligent meter reading system is a system that reads the data of multiple user meters in a centralized manner through the transmission media by the master station. It...[Details]
This article first briefly introduces the working principles of current mode and voltage mode and their respective advantages and disadvantages; then discusses the ideal voltage mode using output c...[Details]
Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pres...[Details]
1. What is fading?
In terms of scope, fading can be roughly divided into three types: large area fading, small area fading and indoor fading. As shown in Figure 1, large area fading refers t...[Details]
IntroductionUSB
, serial port, and parallel port are commonly used interfaces for communication between PC and peripherals. However, for images with large data volumes, if the serial RS-232 protoc...[Details]
The full name of RFID is Radio Frequency Identification, which uses radio frequency to realize data transmission between programmable controller (PLC) or microcomputer (PC) and identification, ther...[Details]
Preface
Sine wave inverters are widely used in various fields such as electricity, post and telecommunications, communications, and aerospace. Moreover, with the continuous development and...[Details]
1 Introduction
Many test systems require real-time data acquisition while continuously moving. If the test process is discontinuous, or the test position is in front and the acquisition is...[Details]
The growing global interest in green power has added new variables to the design of power supplies and power adapters. Designers must not only traditionally consider the design specifications requi...[Details]
0 Introduction
μClinux is an operating system for embedded control. It inherits most of the features of the Linux kernel and is designed for embedded microprocessors without a memory manag...[Details]
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