When the AD PCB is enlarged, there are many white lines, not flying lines, and many horizontal bars. If it is not enlarged, there are only flying lines. Please help, what is going on?...
[i=s]This post was last edited by p0we7 on 2019-7-30 22:44[/i]=======================
Solved: It turned out that the Hold to Hold rule did not have online detection enabled, so the corresponding DRC w...
High frequency characteristics of resistorsWhen resistors are used in high-frequency applications, the effects of the resistor's inherent inductance and inherent capacitance must be considered. At thi...
[i=s]This post was last edited by engineer-x on 2022-2-9 17:36[/i]In the chapter on transistor switching principles in the power supply book,
The book says that when an inductive load is connected, th...
[align=left][font=微软雅黑]Diode is one of the most commonly used electronic components. Its biggest characteristic is unidirectional conductivity, that is, current can only flow through one direction of ...
The book on power supply design describes it this way. I have many questions about the inductor current ripple rate.From this formula in the book, we know that r is related to the volt-second product,...
1 Introduction The commonly used micro-pin printer is slow and noisy, and cannot meet the needs of some occasions. The micro thermal printer has the advantages of fast printing speed, low noise, ...[Details]
According to the China Securities Network of the Shanghai Securities News, on April 12, the application of Guangdong Huate Gas Co., Ltd. (hereinafter referred to as "Huate Gas") for the initial publi...[Details]
The voltage of the appliance or load is 220V. The function of the neutral line is to form a 220V phase voltage with the live line (phase line). UA, UB and UC are the live lines, also called phase lin...[Details]
Recently, an investor asked Xinwei Communication on the interactive platform: How much more will the cost of a mobile phone increase compared to a 4G mobile phone antenna? It is reported that a set o...[Details]
The fieldbus CAN (Controller Area Network) is gaining more and more attention and favor due to its high performance, high reliability and unique design. It is not only widely used in the automotive...[Details]
This circuit is used for amplifier circuits with a range of 2 1* and 20 1*. If the range is greater than 200 1*, it can be directly used for calibration of the meter head parallel common current r...[Details]
In 2020, in the long-term planning for the next automobile industry, the China Automobile Association launched the "Energy-saving and New Energy Vehicle Technology Roadmap 2.0", which on the one han...[Details]
With the continuous development of science and technology and the continuous improvement of people's quality of life, the concern for family property and home security is also increasing. Therefo...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
Chinese chip companies still have a long way to go before they can enter the automotive supply chain on a large scale. However, from a dynamic perspective, the participation of Chinese companies is i...[Details]
In view of the current serious fatigue driving behavior, a fatigue driving detection device was developed. An infrared emitting diode and two infrared receiving heads are installed on the front of the...[Details]
Rystad Energy said last week that global demand for batteries for stationary energy storage applications is expected to increase significantly from 0.14TWh (terawatt hours) in 2021 to m...[Details]
In the tide of Industry 4.0, many applications are realized by host computers and clouds, so PLC data acquisition is one of the most basic prerequisites.
How to realize PLC data acquisit...[Details]
// Calculate the day of the week for any day between 2000 and 2099
// year : 00-99
// month: 01-12
// day : 01-31
unsigned char GetWeekFromDay(unsigned char year,unsigned char month,unsigned char day...[Details]
1 Introduction
In recent years, the number of fire accidents in China has been on the rise. Among the fire accidents, the proportion of electrical fires remains high, accounting for 27% of...[Details]
PCB Design
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