[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...
introduction
In the traffic light control system at the traffic intersection, it is necessary to transmit the status information of the traffic flow, speed, etc. of each port to the main con...[Details]
In order to improve the stability and energy density of power batteries, many companies have begun to develop solid-state batteries. Solid-state batteries use solid electrolytes and have relatively h...[Details]
Overview
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In recent years, with the proposal of building a conservation-oriented society, the importance of energy conservation and power saving has become increasi...[Details]
introduction With the development of power electronics technology, nonlinear loads such as rectifiers and switching power supplies in the power grid are increasing. These power-consuming devices w...[Details]
Ford Motor Co., Ltd. announced plans to invest more than $1.45 billion and add 3,000 jobs in two production plants in southeast Michigan to further consolidate its leadership in the truck and SUV mar...[Details]
This paper designs a building wireless video intercom circuit, which uses a single-chip microcomputer as the controller core and connects to peripheral circuits. It transmits video signals through a w...[Details]
Circuit principle: The integrated circuit charger, as shown in the figure, is a constant current charging circuit composed of a three-terminal voltage regulator (LM317). Since the potential differ...[Details]
Xie Xiaoping, reporter of the Economic Daily, from Beijing
ASUS Chairman Shi Chongtang told the media that Google only gave ASUS 4 months to develop Nexus 7, and the price could not be higher than...[Details]
The biometric sensor patent previously submitted by Samsung to the World Intellectual Property Organization (WIPO) was published on October 11, which revealed information about an internal fingerprin...[Details]
It is reported that in recent years, photovoltaic inverter manufacturers have adopted SiC MOSFET at an increasing speed. Recently, two more manufacturers have adopted SiC MOSFET in inverters. On Ja...[Details]
2019 was a year full of challenges and uncertainties. The Chinese market, the global market, the entire electronics industry, and especially the semiconductor industry, all encountered certain obstac...[Details]
On March 18, Aixu Co., Ltd. (600732.SH) announced that it had signed an investment cooperation agreement with the People's Government of Quanjiao County, Chuzhou City, Anhui Province, and plans to ...[Details]
1 Introduction
As a basic electronic device, the signal source is widely used in teaching, scientific research and technical support of the troops. As a general electronic test instrument, th...[Details]
"Major inventions in every period will change our lives. Steel in the 19th century, cars and airplanes in the 20th century, etc., have promoted development while also allowing society to flourish. Wh...[Details]
SHANGHAI, Oct. 24, 2024 /PRNewswire/ -- On October 23, BloombergNEF (BNEF), a world-renowned research institution, announced the Tier 1 list of global first-tier energy storage manufacturers in the...[Details]
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