1. Experimental tasks As shown in the previous test schematic, switch SP1 is connected to the P3.7/RD pin, and four LEDs are connected to the P1 port of the AT89S51 microcontroller. When the power is ...
【Today · Frost Descent】--- "Frost Descent is one of the 24 solar terms. It means that the weather is getting colder and the first frost appears. It is the last solar term in autumn and also means that...
The design of electronic ballasts for energy-saving lamps is a major difficulty in the lighting industry. Many manufacturers produce products of poor quality, which causes users to "save energy but no...
In the process of power supply research and development, we will always encounter problems of one kind or another. Here are some experts who have been researching and developing power supply problems ...
Now I need to select 2G/GPS/Bluetooth or Zigbee IoT communication modules to make products and want to connect to Alibaba Cloud.Some people say that the module of a certain Zhou is unstable. I wonder ...
On November 29, the Guangzhou Auto Show, the last feast of the 2020 auto market, officially closed. Before the auto show ended, an executive of a car company told New Cars & New Technologies: "The ...[Details]
Does a humidifier emit radiation?
You should know that all electrical appliances have radiation, and humidifiers are no exception. In the home appliance radiation rankings, the radiation of hu...[Details]
China Energy Storage Network News:
The Qinghai China-Europe Energy Internet Research Institute was unveiled on the 21st in Haidong City, Qinghai Province, to promote exchanges and cooperation...[Details]
Comparative Analysis of Reactive Current Detection Methods
Abstract: Based on the instantaneous reactive power theory, a unified closed-loop and open-loop model of harmonic and r...[Details]
Abstract: Digital monitoring of water wells ensures stable and reliable operation of water wells, which plays an important role in the remote dispatch and scientific management of water wells of re...[Details]
The Semiconductor Industry Association (SIA) of the United States announced on the 3rd local time that global semiconductor industry sales in November 2021 were US$49.7 billion, a year-on-year and mo...[Details]
Design Tasks
Design and make a sailboard control system, which can adjust the wind force and change the sailboard turning angle θ by controlling the fan speed, as shown in Figure 1. The sailboard f...[Details]
I often see that many small companies use oscilloscopes that are too low-end, with low bandwidth and low sampling rate. They think that it is enough to capture the waveform, and they think that it ...[Details]
China Energy Storage Network News:
On January 28, State Grid Liaoning Electric Power Co., Ltd. and Dalian Municipal People's Government signed the "Strategic Cooperation Agreement to Streng...[Details]
In LCD maintenance, the oscilloscope is an important instrument for determining the fault location and analyzing the fault mechanism. Compared with the multimeter, the oscilloscope has the following...[Details]
In a vacant lot on the south side of Hefei Xinqiao Airport, a large-scale advanced chip manufacturing plant has sprung up in just over three years. This project has been the focus of the indu...[Details]
From September 13 to September 16, 2011, the 500KW photovoltaic grid-connected inverter (KNGI900-500HEA) independently developed and produced by Beijing Kono Weiye Technology Co., Ltd. was tested f...[Details]
On September 4, Yaguan Technology officially launched the "Cloud Ladder Plan" at the 2019 Shanghai International Smart Home Exhibition (SSHT), providing equipment vendors with integrated access, clou...[Details]
When it comes to solid-state batteries, one thing that always comes to mind is "battery life". Compared with lithium batteries, this new type of battery has a battery life of more than 1,000 kilome...[Details]
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