Hello everyone, I want to ask how to use PWM wave to control the power of the heating wire. The period of PWM wave is about 33ms. Is it better to use thyristor or solid state relay? Will too frequent ...
Circuit diagram:Input voltage: 7.4V, output 6V, 1A. The output waveform measured by oscilloscope is as follows:With such a large interference, the power supply is completely unusable. Please help me f...
According to Malaysia's Sin Chew Daily, Nobel Prize winner Yang Zhenning has three important women in his life. In addition to his late wife Du Zhili and his current wife Weng Fan, there is another wo...
[i=s] This post was last edited by Xiaodaxiaonaoyingjiang at 2016-7-23 22:13 [/i] Today I saw a post by [url=home.php?mod=space&uid=250251]@maylove[/url] in the chat section https://bbs.eeworld.com.cn...
Electric vehicles are becoming increasingly popular, with increasingly longer ranges. There are two ways to charge electric vehicles: slow charging and fast charging. Which is the most suitable? Sl...[Details]
With the increasing number of new energy vehicles on the road, the deployment of supporting facilities for these vehicles has accelerated, and new energy vehicles have gradually entered the vision ...[Details]
Consumer demand for premium listening experiences has driven rapid evolution in the wireless headphone market in recent years. Hybrid designs, which utilize two drivers per earbud to enhance sound ...[Details]
As my country's industrialization continues to improve, environmental pollution is also facing tremendous pressure. In recent years, national environmental protection policies have become increasin...[Details]
Generally not, but there are exceptions. For example, a torque motor controller with three-phase output voltage imbalance can cause current imbalance, similar to a phase loss. However, only two pha...[Details]
introduction
By the end of 2014, people aged 60 and above in China accounted for 15.5% of the total population, reaching 212 million; those aged 65 and above accounted for 10.1% of the total, ...[Details]
In the first half of 2025, Chinese companies demonstrated overwhelming advantages in the world's four major material fields: in the global loading of positive electrode materials, Chinese companies...[Details]
According to foreign media reports, due to the massive expansion of Chinese companies in the global electric vehicle market, the capacity utilization rate of South Korea's three major battery manuf...[Details]
HEVO, a developer of wireless charging infrastructure for electric vehicles, and STEER Tech, a company specializing in high-precision autonomous vehicle technology for fleet garage operations, anno...[Details]
What is the difference in response time when the output uses cyclic refresh and direct refresh?
The time required from when the PLC receives an input signal to when the PLC outputs a con...[Details]
2025 World Expo
On August 10, 2025, Beijing—themed "Making Robots Smarter, Making Bodies More Human," the 2025 World Robot Expo opened grandly at the Beijing Beiren Yichuang International Exhi...[Details]
On August 18, Indian officials announced on August 12 local time that they had approved four more semiconductor projects under the framework of the Indian Semiconductor Mission (ISM), bringing the ...[Details]
1. One-way starting control circuit
1. Circuit operation analysis
1) Close the power switch QS and press the start button SB2. The contactor coil KM is energized, the normally open ...[Details]
Lithium-ion batteries used in electric vehicles are known to slow down the chemical reaction of the electrolyte in low temperatures. Winter driving for pure electric vehicles has become a source of...[Details]
Recently, a friend asked in the background: the recently released Yangwang U8L uses the RoboSense M1P, a long-range LiDAR, for its lateral LiDAR, while the Zunjie Wenjie series uses a TOF solid-sta...[Details]
Analog electronics
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