[i=s]This post was last edited by tagetage on 2020-8-12 20:27[/i]First of all, I would like to thank EEworld for organizing this Raspberry Pi 4 review event. I was fortunate to participate. This is my...
1. Pay attention to the size of the surge current in the PCB layoutDuring testing, it is often found that the originally designed PCB cannot meet the surge requirements. Generally, engineers only cons...
The data reading and writing on the Local Bus are divided into synchronous mode and asynchronous mode. In the synchronous mode, an external clock signal is required for the receiving end and the sendi...
Live Topic: Explore the High-Tech of Network Cameras with Infineon
Live broadcast time: December 28, 2021 (Tuesday) 10:00-11:30 am
brief introduction:
Security monitoring based on video processing has...
Large ground grid ground resistance tester is mainly used to measure the power frequency ground resistance value of large ground grid, and can also be used to measure soil resistivity. It has strong...[Details]
Apple's wireless earphones AirPods, which have a market share of over 60%, only scored 56 points and ranked 49th in the American review magazine Consumer Reports. According to a survey by market rese...[Details]
Electrolytic capacitors leak over time. The circuit in Figure 1 can be used to test capacitors to determine if they are worth using. The CREF/RREF ratio sets the limit on leakage. The values show...[Details]
On August 2, 2024, in accordance with the requirements of the "Notice of the Shaanxi Provincial Department of Industry and Information Technology on Organizing the Evaluation and Recognition of Inn...[Details]
On August 17, Chongqing High-tech Zone held an online signing event for the Western (Chongqing) Science City of the Smart Expo, signing 41 projects with a total investment of 41.7 billion yuan. Among...[Details]
Innosilicon Fenghua 1 uses the IMG BXT-32-1024 GPU architecture solution to achieve high performance and server-level functions London, UK – December 3, 2021 – Imagination Technologies today releas...[Details]
1. Theoretical lifespan:
LED light source 100,000 hours, 5 hours a day, lifespan up to 55 years
Cold cathode light source 30,000 hours, 5 hours a day, lifespan up to 16 years
Conclusio...[Details]
This project uses an
LM3915
bar graph IC driving two sets of 30dB range of 10 LEDs. This circuit is unique because it has an automatic gain control providing 20dB of extra range to make it very...[Details]
According to foreign media Macrumors, Apple has partnered with the Redford Center to host the second annual Redford Center Story Challenge, a youth filmmaking challenge designed to amplify the...[Details]
As a microwave level meter, radar level meter is widely used in liquid level measurement in the industrial field. In order to enable instrument users to better understand and know radar level meter...[Details]
The inverter introduced here (see Figure 1) is mainly composed of MOS field effect tubes and ordinary power transformers. Its output power depends on the power of the MOS field effect tubes and the p...[Details]
Solar energy is an inexhaustible
energy source
for mankind
, and it is also a clean
energy source
that does not cause any environmental pollution. Among the effective utilization of...[Details]
UPS is a third-generation power frequency pure online intelligent UPS developed with brand-new digital technology to meet the power supply reliability requirements of China's power grid environment...[Details]
This is my first time learning and using STC15F2K60S2 for AD conversion. It feels much easier to use than using 89c52 plus AD chip before. Although I took a lot of detours in the middle, I finally su...[Details]
Soft-start thyristor is a power electronic device used to control the start and operation of the motor. It has the advantages of smooth start, high operating efficiency and convenient control. In p...[Details]
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