I just use timer A and timer B to generate high and low levels alternately for testing. However, even if the set time is the same, the high and low level widths of the output PWM waveforms are very di...
[i=s]This post was last edited by chg0823 on 2021-12-18 19:13[/i]After I published the last article on lighting and flowing lights, I received a reply from a reader who wanted me to introduce the simu...
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 20:00[/i]Bankers and financial regulators around the world are growing increasingly concerned about the commodity boom and the risk of oil...
[align=left][color=#000000][size=4] Using [font=Calibri]DATA0~DATA15[/font] of [font=Calibri]S3C2410[/font], expand [font=Calibri]2[/font] parallel interfaces, the schematic diagram is as follows. [/s...
I would like to ask you a few questions: 1: What is the rule for dividing tasks in your uCOS-II system? 2: If you use this system in your project, can you tell me your experience? 3: How can we maximi...
Today I copied a 2A switching power supply circuit that I have used for half a year and I feel it is of good quality. Please take a look at it to see if it is correct....
At present, the traffic congestion in cities is quite serious. According to relevant news reports: In China, the traffic congestion has expanded from megacities such as Beijing, Shanghai, and Guang...[Details]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[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]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
introduction
When it comes to the production of mobile phone lithium-ion batteries, the first thing that comes to mind is Japan's industrialized mechanical assembly line, NOKIO, MOTOLROLA's st...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
IntroductionLED
billboards are a kind of information display terminal for the public, which has a wide range of civil and commercial values. However, the information displayed on most LED bil...[Details]
In the TV monitoring system, in order to complete the collection of information from various information points (video, audio, alarm signal) and the control of various front-end devices (PTZ, lens,...[Details]
Microcontrollers are something that many people want to learn about and are concerned about. In most websites, the hardware requirements are generally as follows:
1. You need a computer, prefer...[Details]
MCU
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