Why do I say "those who brag about PADS and Allegro are all unsophisticated"? Because this is the feeling I have had since I came into contact with electronic design. Recently, this feeling has become...
Requirements: Since the human ear's hearing characteristics for sound signal intensity are logarithmic, the ratio of the maximum and minimum values of the sound that humans can hear can reach 1012 tim...
I want to build a GPRS development platform. The power supply part is implemented with LM317, but no matter how I adjust it, I can't reduce the 18V voltage of the power adapter to 4V. The resistance c...
I was staring at the computer and editing the code when my colleague delivered my express. I immediately realized that the MicroPython board I had been looking forward to had arrived. I was so excited...
[b][size=5]Verilog Embedded Digital System Design Tutorial[/size][/b][size=4] [/size] [color=#333333][backcolor=rgb(255, 255, 255)][font=arial, 宋体, sans-serif][size=4]This book emphasizes that in addi...
I want to use a microcontroller and an infrared sensor to identify the presence of a person, but I don't know the circuit diagram. Can any expert help me?...
Electric motors and internal combustion engines of the same power have similar torque levels. High power requires high torque, and torque determines a vehicle's acceleration speed, commonly known a...[Details]
Multi-touch mobile phone
Multi-touch is a system that can respond to multiple touches on the screen at the same time. Multi-touch phones are divided into capacitive and resistive types. Capaci...[Details]
introduction
According to the China Fire Statistics Yearbook, electrical fires accounted for more than 30% of fire accidents in the past decade, and the trend is increasing year by year. They ...[Details]
With the advancement of science and technology and the promotion of green, energy-saving, and circular development, the demand for precise control and accurate measurement is increasing. In the pow...[Details]
Smartphones can be incredibly unintelligent. For example, consider an office full of people, each absorbed in their work. Suddenly, the silence is broken by a burst of loud pop music. A colleague's...[Details]
introduction
With the development of the information superhighway and the internet, broadcast television has become increasingly widespread worldwide. Television information has emerged in var...[Details]
Generally not, but there are exceptions. For example, a torque motor controller with three-phase output voltage imbalance can cause current imbalance, similar to a phase loss. However, only two pha...[Details]
According to foreign media reports, Apple is secretly evaluating several artificial intelligence hardware concepts, including smart home displays, security devices and a desktop robot, of which the...[Details]
introduction
At present, all major countries in the world are vigorously developing marine affairs. However, there are various uncertainties and unknown factors in the ocean. Underwater robots...[Details]
Do electric cars emit radiation? The answer is: yes! In fact, electromagnetic radiation is ubiquitous in our lives. The Earth itself is a large magnetic field. The interaction between electric and ...[Details]
What is the difference in response time when the output uses cyclic refresh and direct refresh?
The time required from when the PLC receives an input signal to when the PLC outputs a con...[Details]
Principle of single-phase AC motor
The starting methods of 220V AC single-phase motors are roughly divided into the following categories:
The first type, split-phase starting, as shown in...[Details]
Many battery-powered systems and Internet of Things (IoT) applications—such as smart meters, smart health products, video doorbells, robotic toys, personal hygiene products, and electronic locks—in...[Details]
1. One-way starting control circuit
1. Circuit operation analysis
1) Close the power switch QS and press the start button SB2. The contactor coil KM is energized, the normally open ...[Details]
Automotive electronics is a general term for both vehicle-mounted and onboard electronic control devices. Automotive electronics is considered a revolution in automotive technology, and its degree ...[Details]
PCB Design
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