Can you analyze this circuit? Since I am new to analog electronics, I don't know much about transistors. Why do the two transistors turn on in turn when the light is dim, and the LED flashes?Please an...
Abstract: This paper focuses on the principle, characteristics and main parameters of the ACM distribution line overload monitoring device, that is, by detecting the current in the distribution line, ...
Have you noticed that when you use more than two mobile phones, you will see that the number of words in a message sent by the two phones is different? I don’t know if China Mobile and China Unicom ha...
I have two identical data acquisition devices at two locations. Now I want to synchronize the data acquisition via wireless. That is, one device sends a data acquisition command and starts data acquis...
When communicating via LIN, the host sometimes displays a checksum error in response to the slave (DSP 28035). What could be the cause? Since the checksum is calculated by the 28035 LIN itself, how co...
[i=s]This post was last edited by youzizhile on 2014-9-16 10:57[/i] [url=https://bbs.eeworld.com.cn/thread-443045-1-1.html]LPC1500 experience + construction of development environment[/url] [url=https...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
Introduction
my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
In some motion control systems with simple control or low cost requirements, stepper motors are often used as actuators. The biggest advantage of stepper motors in such applications is that they ca...[Details]
1. Basic principles of organic/polymer solar cells
The basic principle of organic/polymer solar cells is to use the photovoltaic effect generated by light incident on the heterojunction of sem...[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]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]
0 Introduction
In the fields of petroleum, chemical industry, metallurgy, electricity, textile, light industry, water conservancy and other industries and scientific research, relevant pressur...[Details]
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Analog electronics
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