As shown in the figure, LM2596 inputs 7.2V DC, stabilizes to 2.8V, and gives me the lower MCU system to work. The lower system works normally at normal temperature. But I put the system in the refrige...
1: Does the external crystal oscillator generate a square wave or a sine wave? 2: Is the PLL clock inside the system a square wave or a sine wave? 3: If it is an asynchronous fifo, one clock is the ex...
This is the STC89C5X download cable that I made after spending several hours. It may be a little crude, but it has been verified to be usable! Attachments will be added in the evening [[i] This post w...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:45[/i] [size=12px][size=12px] [size=14px]On May 22, the press conference for the 2009 NEC Electronics Cup National Undergraduate Electronics ...
[align=left]Just saw a news story - Fujitsu Semiconductor and Leica jointly announced the successful development of a new generation of digital camera image processor MAESTRO II. The processor is deve...
I am a crazy cat, an absolute mechanical enthusiast, but I know nothing about electronic circuits. I look at circuit boards and schematics as if they were works of art. I ask for help from friends on ...
0 Introduction
With the development of society, people pay more and more attention to security work. Monitoring products have been used in various fields instead of being used only in importan...[Details]
Editor's note: In order to help technicians or engineers who have knowledge of PIC microcontroller assembly language quickly master the method of using C language to program PIC microcontrollers, t...[Details]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[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]
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]
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]
Features
POE technology can ensure the safety of existing structured cabling while ensuring the normal operation of the existing network and minimizing costs. The IEEE 802.3af standard is ...[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]
Designing low power circuits while achieving acceptable performance is a difficult task. Doing so in
the RF
bands increases the challenge dramatically. Today, nearly everything has wireless...[Details]
1. Introduction
The advancement of USB technology makes designers prefer USB interfaces in PC peripheral development. However, existing
virtual instrument
development platforms such...[Details]
1 Introduction
With the rapid development of my country's economy, the country has introduced a series of policies such as preferential policies, subsidy policies, and old-for-new policies, wh...[Details]
Li/SOCl2 batteries (lithium sub-cells) have the advantages of high operating voltage, stable discharge voltage, wide operating temperature range and long storage life, and have been widely used in ...[Details]
As a type of iron battery, lithium iron phosphate battery (hereinafter referred to as lithium iron battery) has always been widely concerned by industry friends (some people say that lithium iron b...[Details]
1 Introduction
The coke oven gas recovery system is mainly composed of a gas tank and a pressure reducing station. While realizing the recycling and reuse of coke oven gas, it also plays an imp...[Details]