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 on April 24, South Korea recently announced that it will jointly invest with the country’s top battery manufacturing companies and plans to invest 20 trillion won (...[Details]
China Energy Storage Network:
Give full play to the role of power sales companies in the construction of the power market
One of the biggest features of "Document No. 9" is "control ...[Details]
Various electromagnetic waves are hovering around us all the time, and they may harm our health at any time. As long as the electrical appliance is in operation, there will be electromagnetic field...[Details]
introduction μVision is a microcontroller IDE software developed by German Keil Company. It was initially mainly used for 8051 series microcontrollers. Currently, there is also a dedicated version MD...[Details]
Recently, the first tax income refund certificate for the end-of-period retained tax refund for an integrated circuit enterprise in Xiamen's Haicang District was issued, and Xiamen Silan JiKe Microel...[Details]
The need to deliver complex styling while meeting vehicle-specific requirements and region-specific regulations has increased the complexity of the optical design process. This has led to an increa...[Details]
Last time, I talked about learning UBOOT code, but before reading it, you must first know the programming resources of the target machine. The resources here refer to the resources provided by S3C4...[Details]
The LCR meter, as the name suggests, is a special measuring tool used to measure the intrinsic parameters of electrical components. L refers to the inductance, c refers to the capacitance, and R refe...[Details]
1. No scan line When there is a no scan line fault, you should first check whether the power supply circuit, oscilloscope circuit, trigger scanning circuit, X-axis amplifier, etc. are working properl...[Details]
February 8, 2022 - Saudi Basic Industries Corporation (SABIC) recently released its fourth quarter 2021 financial report. The company's total sales this quarter reached 51.28 billion riyals (US$13.67...[Details]
According to reports on December 8, according to reports from the Associated Press, Daily Economic News, etc., during the Lenovo Group’s “AI PC Industry Innovation Forum” on December 7, Intel China T...[Details]
In use, a dedicated ground resistance tester is expensive and inconvenient to purchase. Can I use a multimeter to measure the ground resistance? The author used a multimeter to conduct experiments ...[Details]
The design uses a multivibrator circuit as the driving circuit of the infrared transmitter to drive the infrared transmitting tube to emit infrared rays into the defense area. The receiving end uses ...[Details]
According to past practice, Samsung will release a new S series phone at the beginning of each year. Recently, there is news that Samsung will release a new S series product in January next year. The...[Details]
Recently, an industry planning document marked with the words "New Energy Vehicle Industry Development Plan (2021-2035)" (Draft for Comments) (hereinafter referred to as the "Plan") was leaked online...[Details]