The electrolytic capacitor is made of two strips of aluminum foil with insulating paper. Because it is wound, it is considered to be an inductor. This conclusion has been circulated for decades. I don...
In daily development, we often encounter situations where Linux hosts act as TCP servers. As long as the Linux system has an Ethernet port or WIFI, it can act as a TCP/UDP server or client. TCP commun...
[i=s]This post was last edited by qwqwqw2088 on 2022-9-13 10:39[/i]The iQOO 10 Pro phone has increased the power of ultra-fast flash charging from 120W to 200W. It only takes 10 minutes to fully charg...
The USB protocol contains a lot of content, and here we will only talk about the part about hardware design.
USB generally has 4 pins, one VCC, one GND, one D+, and one D-.
VCC is generally around 5V,...
[i=s]This post was last edited by jinglixixi on 2022-5-23 23:31[/i]In the routine program of the development board, an RTC test program is provided, which displays the output content through the seria...
1) History of Acoustics
When a tree falls in the forest, it makes a loud noise, but no one is in the primeval forest, so no one can hear it. Does this count as a sound? The sound is definitely made,...[Details]
Due to the price, NandFlash is more advantageous than NorFlash for storing large amounts of data. However, programs cannot be run directly on NandFlash, so S3C2440 provides a mechanism where the sy...[Details]
On September 3, Zhang Jianming, deputy director of the Shanghai Municipal Economic and Information Commission, went to Lingang to investigate the construction of 5G networks in the 700MHz frequency b...[Details]
Today I will briefly share with you what the four-wire testing method is. The four-wire test method is by far the best test solution to eliminate the error introduced by the lead resistance (or minim...[Details]
Recently, according to foreign media reports, Panasonic has cooperated with a professor at Ritsumeikan University in Japan to develop a new battery management technology that can accurately evaluate ...[Details]
Some time ago, Apple released the low-end TWS earphones Beats Studio Buds, priced at only 1,099 yuan, which are now available on Apple's official website and will be available for order on July 2. Ac...[Details]
Yesterday, Xiaomi officially popularized 10 knowledge points about 5G mobile phones. Lu Weibing, vice president of Xiaomi Group and general manager of Redmi brand, forwarded the Weibo post and said: ...[Details]
Dynamic memories such as DRAM and SDRAM generally have clock pins, and their internal timing circuits are driven by external clock signals. For memories without clock signals, their internal timing mu...[Details]
I repaired a power supply today, and someone told me that there was a problem with the FLASH access. My first reaction was to re-download the program, because I had encountered a product before where...[Details]
A new error amplifier with high gain, wide bandwidth and controllable output swing is designed. By adding two comparator modules A2 and A3, the output swing of the error amplifier can be adjusted wit...[Details]
Acid rain is a pollution phenomenon caused by human activities that leads to acidification of regional precipitation, which has a significant impact on public health, industrial and agricultural pr...[Details]
Introduction Frequency is one of the most important characteristics of a signal, but engineers often wonder: Why do the frequency measurement results of a hardware frequency meter and an oscilloscope...[Details]
AMBA (Advanced Microcontroller Bus Architecture) is an on-chip bus introduced by ARM. The AMBA specification mainly includes: AHB (Advanced High-performance Bus) system bus and APB (Advanced Peripher...[Details]
Analog electronics
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