As shown in the figure, what is the specific function of the capacitor marked in red? This figure is a mic circuit in an IP phone. How to determine its capacitance?...
[i=s]This post was last edited by dontium on 2015-1-23 13:02[/i]I bought the chip from a group purchase, and I was itching to make one. Later, I printed a PCB. For details, see: bbs.eeworld../thread-3...
[i=s] This post was last edited by huanjun123 on 2014-11-6 15:19 [/i] I made a minimum system based on mega8. When testing, the IO port high-level output was about 1.5V and the low-level output was ab...
Hello everyone: I recently made 5 boards, and a strange problem occurred during the copy machine. The function of the board is to record data through the serial port, with an operating system. When ru...
Someone previously posted a document (vhdl) about FPGA phase-locked loops from the Japanese FPGA competition. I referred to it, changed it to Verilog, and used ModelSim to give the same simulation res...
I am currently working on hard disk data destruction, using the SST55LD019 (020) hard disk controller. When executing the Security Erase Unit command 0XF4 in the ATA protocol, the value returned by St...
With the booming electronics industry, vision systems have become a leader in the electronics automation sector. However, the delicate nature of electronic products often affects product yields due...[Details]
The intelligent driving community has its own rhythm. Some are busy pushing new versions and focusing on R&D, others are busy with publicity and promotion, and still others are immersed in mass pro...[Details]
Most of the houses we live in now are elevator buildings, mainly because it is more convenient to go up and down the stairs! It can also make life more comfortable. It even helps to increase the ad...[Details]
New energy vehicles are increasingly popular with consumers due to policies and energy conservation. Once you've purchased your vehicle, maintenance is essential. However, due to the different powe...[Details]
On August 24th, media outlets reported, citing sources, that NavInfo, a listed company on the A-share market, is nearing completion in its acquisition of the intelligent driving c...[Details]
In recent years, the government has increasingly supported electric vehicles, and the number of electric vehicles has increased. Observant drivers will notice that there are many more green license...[Details]
Zos Automotive Research Institute released the "2025
Smart Cockpit
Tier 1 Research Report (Domestic Edition)."
This report analyzes the operating conditions of more than a dozen ...[Details]
Core point: The automotive industry chain and the humanoid robot industry have collaborative advantages in hardware, software, and scenarios. Upstream and downstream companies in the automotive ind...[Details]
Based on a survey of more than ten intelligent robot companies, this article sorts out and analyzes the current development status of the intelligent industry and the challenges and differences it ...[Details]
On August 22, according to the Ministry of Industry and Information Technology's official website, my country's first mandatory national standard for the control of hazardous substances in electric...[Details]
The digital TV set-top box consists of a tuner, QAM demodulator, TS demultiplexer, MPEG-2 decoder, PAUNTSC video encoder, embedded CPU system and peripheral interfaces, CA module, and uplink data m...[Details]
Pure electric vehicles, structurally speaking, have components such as a power battery. In addition to the power battery, a small battery also powers some low-voltage electrical components and even...[Details]
With the advent of the electric car era, the number of pure electric vehicles has increased significantly, but many car owners do not know how to properly maintain pure electric vehicles. In additi...[Details]
Tires are a very important component for cars. They are related to the driving experience of the vehicle. We are almost inseparable from cars in our daily lives. For tires, according to the role of...[Details]
There are more and more electric vehicles. Recently, I have heard some news about electric vehicles performing poorly in winter. I would like to briefly introduce whether heat pump technology is mo...[Details]