I designed an AC127-DC15V switching power supply with TL3842, but it only outputs 1.5A current. However, 10 out of 30 units produced now have voltage output, output voltage sag or output flicker when ...
[size=4]This morning the courier asked me to pick up the package, but I went to the supermarket to fight for the discount[/size]{:1_133:}:lol[size=4], so I asked someone to pick it up for me. I didn't...
The GSM (Global System for Mobile communication) system is a relatively mature, complete and widely used system in the current mobile communication system based on time division multiple access techno...
As the title says: I want the source code of the virtual sound card driver at a high price. It is required to intercept the audio input of the microphone and capture the audio output of the speaker. I...
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]
With the continuous development of the industrial automation industry, we are seeing an increasing number of intelligent devices using flexible, efficient, and precise robotic arms to p...[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]
EVTank predicts that all-solid-state batteries will achieve small-scale mass production in 2027 and large-scale shipments by 2030. Global solid-state battery shipments will reach 614.1GWh, of which...[Details]
Servo motors, also known as actuator motors, serve as actuators in automatic control systems, converting received electrical signals into angular displacement or angular velocity output on the moto...[Details]
From smartwatches to portable health and fitness trackers, wearable devices are increasingly transforming every aspect of our daily lives. The desktop computer revolution of the 1980s ushered in an...[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]
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]
Although everyone has their own unique approach to PLC programming, the ultimate model is the same. This article uses the simple ladder diagram programming method of Mitsubishi PLC as an example to...[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]
In the laboratory material transfer scenario, Jingshi Fuhe has solved core problems such as precise grasping, environmental adaptability and process collaboration through technological innovation...[Details]
According to foreign media reports, a team from the Helmholtz Association of German Research Centres (HZB) used a non-destructive method to study practical lithium-sulfur soft-pack batteries using ...[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]
Embedded System
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