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...
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,...
After unboxing, verify the BOX function through the APP and take a photo with the sensor in use.
Unboxing and charging
APP installed successfully
DEMO 1
DEMO 2
DEMO 3
Signal StrengthChargingThe device...
According to foreign media reports, the Xiaomi 11T series is expected to be released on September 15, and foreign whistleblower Ishan Agarwal has released renderings of the Xiaomi 11T series. The r...[Details]
I. Overview
DC converters can be divided into two categories according to whether there is electrical isolation between the input and output: those without electrical isolation are called non-i...[Details]
This chapter mainly talks about the units of numbers in computers. It may be difficult to understand, but this chapter is very important.
As mentioned above, binary (bit, Chinese bit), that is,...[Details]
On August 4, Huafeng Testing & Control disclosed an investor survey report, answering investors' questions on gross profit margin, market layout, and R&D investment. Judging from the situation of the...[Details]
Power ripple test is a very important parameter in power quality detection, but how to accurately measure power ripple has become a difficult problem in the minds of engineers. How can we solve this ...[Details]
Volvo's new concept car, Concept XC Coupe, was unveiled at the Detroit Auto Show. Like the previous Concept Coupe, this concept car is also built on Volvo's new SPA platform and has received a lo...[Details]
Measuring power supply ripple accurately is an art in itself. In the example shown in Figure 6.1, a junior engineer used an oscilloscope completely incorrectly. His first mistake was using an osc...[Details]
Recently, the Chengdu Municipal Bureau of Economy and Information Technology issued the "Work Plan on Accelerating the Cultivation and Development of Kunpeng Industry" (hereinafter referred to as the...[Details]
According to foreign media reports, the University of Twente in the Netherlands has developed a new optical amplifier that can not only enhance the light signals on photonic chips, but also improve t...[Details]
According to news on November 15, today, the State Council Information Office held a press conference on the performance of the national economy in October. Fu Linghui, spokesperson of the National B...[Details]
Record Length is also called record length, which indicates the number of sampling points that an oscilloscope can save. If the storage depth is "20,000 sampling points", it is generally written as "2...[Details]
Checking whether the external AC voltage and internal DC voltage of electrical equipment are normal is the basis for analyzing the cause of the fault. Therefore, when repairing electrical equipment a...[Details]
The Ministry of Industry and Information Technology’s official website released a document stating that “from June 21, 2019, the “Automotive Power Battery Industry Standard Conditions” (Ministry of I...[Details]
Connecting upstream and downstream information resources of high-end medical manufacturing Medtec China joins hands with experts to learn about medical innovation and intelligent manufacturing As ...[Details]
On October 21, the Gansu Provincial Department of Industry and Information Technology publicly solicited opinions and suggestions on the "Implementation Plan for the Construction and Operation Mana...[Details]