Project requirements: 1. Input voltage 14.0V ~ 22.0V, output voltage 3.3V 2A, ripple less than 50mv 2. Space constraints, requiring the PCB to be as small as possible 3. High efficiency, reduce compon...
I want to learn STM32F103VE + cortex-M3 + ucos-II. I don't know what development board is available now, with more complete information, more people learning, and more powerful functions. Please recom...
Fundamentals of Engineering Test Technology Huazhong University of Science and Technology : https://training.eeworld.com.cn/course/5403Engineering testing technology is a professional basic course for...
This is my guess about the 2015 signal question. This is a low-frequency one, just an example. I hope you can refer to it. My guess about the signal question: [url]https://bbs.eeworld.com.cn/thread-47...
The requirements of the IC I need are as follows:the working principle of the switch is mainly based on vibration. For example, install this trigger switch in an integral object, but control the light...
In 1983, the national standard GB/T 3935.1-83 gave the definition of standard, which is the unified provisions for repetitive things and concepts. It is based on the combined results of science and te...
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[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]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
In the previous series, we have listed some basic knowledge of C language in Tables 1 to 3. We hope that beginners can strengthen their memory of the above tables and gradually learn to use them wh...[Details]
At very low temperatures, certain metals and alloys lose their resistance to electric
current
and become
superconductors
. Two parameters that are often measured are the transition ...[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]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
LED is now known as the fourth generation of light sources. High-power LED has many advantages over traditional light sources in outdoor lighting.
1 LED lamps have high light efficiency
C...[Details]
The production process of lithium batteries does not mention the previous processes such as material preparation, winding, liquid injection, and packaging, but only talks about the final formation ...[Details]
This article focuses on closing the feedback loop of an isolated power supply using a TL431 shunt regulator. The article discusses a method to extend the bandwidth of the power supply control loop ...[Details]
The power consumption of a switching power supply includes fixed losses caused by parasitic resistances such as semiconductor switches, magnetic components, and wiring, as well as switching losses ...[Details]
1 Introduction
At present, advocating health has become the focus of people's attention, and the emergence of treadmills has become more and more popular. People can exercise at home or in the ...[Details]
Analogue and Mixed Signal
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