Use the PWM function of a single chip to generate an SPWM wave, and finally get the desired sine wave through low-pass filtering to drive the speaker to make a sound! After reading some information, I...
I bought 10 Atmega8l+SPX3232+CC2420 from another forum some time ago and played with them for a while. I have never touched AVR microcontrollers before, but now I can drive CC2420. I am posting this t...
Circuit Function and Advantages
This circuit is an AC excitation weigh scale system built with the AD7195. The AD7195 is an ultralow noise, low drift 24-bit Σ-Δ ADC with built-in PGA and driver to imp...
Powerful functions: with RS232, RS485, CAN interface! [/b][/color][/size][/font][/align][align=left][font=tahoma, arial, 宋体, sans-serif][size=6][color=#0000ff][b]Learn and evaluate the best options fo...
(Only for those who want to learn Protel 99 /PADS Layout to draw PCB boards in the electronics industry, please read this carefully^-^) Hello, colleagues in the electronics industry! I am a young elec...
Please help me, the description is a bit long, please forgive me! I am trying to use Visual Studio 2005 C# to develop an application for Windows CE smart terminal to connect to the database on my PC (...
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[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]
The automotive lighting and signal control system is responsible for controlling the vehicle's lighting, signal lights, electric horns, reversing and brake buzzers. Traditional automotive lighting...[Details]
The typical fault troubleshooting listed below is for reference of maintenance personnel.
When the computer is turned on, the indicator light is off and there is no screen display
Mainte...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
0 Introduction
High-precision current source can provide high-precision current supply for precision instruments, and is suitable for automatic measurement tasks of various resistors in semico...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[Details]
When the so-called "copycat phones" that flood the domestic mobile phone market move towards large screens, stereo amplifiers, touch controls, and even GPS navigation and mobile TV, the homogeneity...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
Direct digital frequency synthesis (DDS) has fast frequency switching and modulation capabilities and is widely used. However, when low power consumption and low cost are the main considerations, D...[Details]
1 Introduction
Power supply ripple will interfere with the normal operation of electronic equipment, causing malfunctions such as computer crashes, data processing errors and control system fa...[Details]