When the company just moved, the access control was broken. Later I forgot how to fix it, but I found a few circuit diagrams at that time. This may be of some value. I would like to share it with you....
As shown in the picture, what is the function of the unused NC winding of the transformer? Does anyone know? Is it energy storage or other functions?...
Let me talk about myself first. My alternative is an egg pancake, a pancake, and two or three steamed buns. There is a saying that if you eat breakfast like an emperor, lunch like a commoner, and dinn...
I just saw that I won a prize today. I would like to share the ultrasonic code I found today. It is absolutely usable. Welcome to discuss. Many of them are not usable on the Internet. There are three ...
Hello everyone, I have a question for you: I want to save the registry data permanently: I found an article on the Internet (many articles are about this) 1. Add "Hive-based Registry" in PB. If it is ...
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
In recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
LED is the abbreviation of the English word. Its main meanings are: LED = Light Emitting Diode, a solid-state semiconductor device that can convert electrical energy into visible light. It can dire...[Details]
introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that is rapidly developing...[Details]
In the 1980s, breakthroughs were made in the design and production of small, low-power quartz metal halide lamps with precise dimensions. At the same time, with the acceleration of people's lives a...[Details]
Current sensing in automotive applications includes controlling the current through solenoids and injectors. For example, during diesel injection, we rapidly increase the current to the induction i...[Details]
With the tense global energy situation and the improvement of human environmental protection awareness, the research and development of power batteries is in full swing around the world. At present...[Details]
Industrial Control Electronics
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