[i=s]This post was last edited by Li Baiyi on 2021-12-22 21:11[/i]When debugging EC-01F MQTT to access Alibaba, the normal communication state is frequently disconnected and then automatically connect...
At the moment the tweezers are short-circuited, the load becomes 0.
At the moment the tweezers are released, the load changes from 0 back to its original value.
Is this change process completed instan...
I have a heating wire that is AC 70V, so I need a 220V to 70V transformer.
The temperature control module is a relay output model, with a heating wire of 800W and a transformer of 3KVA.
Now it is not ...
Power electronic device integrated products, such as motor controllers, are stored for a long time (under non-strict storage conditions, such as humidity and temperature), and need to be used again. W...
Electrical Engineering North China Electric Power University Li Yonggang : https://training.eeworld.com.cn/course/5999Electrical Engineering North China Electric Power University Li Yonggang...
A common anode digital tube refers to an eight-segment digital tube in which the anodes (positive electrodes) of the eight-segment light-emitting diodes are connected together, while the segments cor...[Details]
1. Control structure of switching power supply:
Generally speaking, the switching power supply is roughly composed of four main parts: input circuit, converter, control circuit, and outpu...[Details]
Recently, Chengdu Business Daily reported that shared power banks may monitor users' mobile phones in real time. Technicians said that if a charging cable that can transmit data is used, this problem...[Details]
Introduction
Based on the objective fact of electromagnetic wave anomalies before earthquakes, in earthquake prediction, the short-term reflection ability of electromagnetic radiation anomalies...[Details]
Recently, the ISDB-T Full Seg car digital TV developed by Inno Technology (China) Co., Ltd. has begun mass production for certified customers. It is said to be the first domestic design company to ...[Details]
"Dassault Systèmes' philosophy is to expand the virtual world and transform the real world. By providing twin experiences in the virtual world, we help companies and people create sustainable product...[Details]
Every time you upgrade your system or change your phone, the most troublesome thing is probably backing up your data and passwords. Just now at the ColorOS 11 launch conference, OPPO said that the sy...[Details]
Hello everyone, signal modulation technology is now used in many fields. I learned from communicating with customers that they need to perform frequency analysis on FM signals. So how should we use Z...[Details]
ROHM launches a special website to support automotive "functional safety" design ~Collects about 1,000 products of the "ComfySILTM" brand, greatly improving searchability~ ROHM, a world-renowned se...[Details]
In the infrared light source driving circuit , the +12 V voltage is added to the two ends of the amplifier through two 100 kΩ resistors to form a common phase ratio. The amplification factor of the a...[Details]
There are many factors to consider when purchasing a constant temperature and humidity test chamber, among which the size of the chamber volume is the first choice to be made. In order to ensure that ...[Details]
Innova Research says Covid-19 pandemic stimulates continued growth in global household front-end water purification market Innova Research, a leading industry research company focused on n...[Details]
On December 30, Meizu Lipro Smart Home held a brand sharing meeting to share the concept and idea of Lipro Smart Home with the media, and expressed its plan to become one of the top three hi...[Details]
With the trend of automobile intelligence, in-vehicle high-speed communication has received industry attention in recent years. In smart cars, the number of sensors such as cameras, millimeter-wave...[Details]
RF/Wirelessly
京公网安备 11010802033920号
EEWORLD
