Below is the schematic diagram of a DC/DC power supply. The voltage of RL can be controlled by adjusting the pulse width of PWM. If the 220V pulsating DC is adjusted through PWM, can the DC output vol...
I built a board according to the classic telephone circuit, the schematic diagram is shown below. MT8888 is a DTMF transceiver, and TEA1062 is a telephone voice chip with a dialing interface. The TONE...
I am using the F2802-60 device. The program I wrote runs well when it is simulated in RAM using the emulator and CCS3.3. However, after changing the flash configuration cmd file, compilation and downl...
[p=22, null, left][color=rgb(60, 60, 60)][font=微软雅黑, Tahoma,]1 Overview[/font][/color][/p][p=22, null, left][color=rgb(60, 60, 60)][font=微软雅黑, Tahoma,] In order to reduce the tedious process of manual...
Our project is to do an embedded simulation. When I read the SPI manual of s3c2410, I don't understand the following questions. I would be grateful if any expert can give me some advice! ! Here are th...
My computer was shut down several times due to power outages. As a result, it was very slow when I turned it on in the afternoon. It took more than ten minutes to boot up. I couldn't open it with anti...
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
The Portable Digital Data Acquisition System (PDDAS) uses LabVIEW Real-Time and PXI to control the wind tunnel test and record air pressure data from 128 different channels.
"The LabVIEW Real-...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
1. Introduction
With the gradual automation and modernization of industrial control systems, fieldbus control systems have received more and more attention and application. CAN bus is currentl...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
1 Introduction
The Third Steel Plant of Jigang Group is a key investment project of Jigang Group during the "15th Five-Year Plan". It has introduced first-class domestic and foreign advanced eq...[Details]
VP2188 is a color STN LCD module produced by Jingdian Pengyuan. This module is a dot matrix transmissive color STN display screen with a color scale of 65 k colors and white LED backlight. Its core...[Details]
OC faults may be the most frequent and the most frequent of all faults in the inverter. They alarm during the startup process, during the shutdown process, during operation, and even when powered o...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
Preface
In recent years, white light LEDs have gradually replaced incandescent bulbs and fluorescent lamps because they have unparalleled advantages over traditional light sources in terms...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
0 Introduction
With the rapid development of social economy and science and technology, electric locomotives, subways and electric vehicles will be widely used. The power conversion and cont...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]