I have a digital ammeter. It had a problem three months ago. The situation is as follows: AC 220V power supply. Some of the main chips are as follows: ICL7650S chopper-stabilized high-precision operat...
[align=left] [font=宋体]The author is a graduate of Xidiantong Institute in 2013. Based on the job search this year and the summary of classmates around him, the salary of major companies is summarized ...
RT, when I was chatting with an agent yesterday, he said that some CM3 models are not subject to the 100-times limit on flash read and write. Is this true?...
Basic knowledge of inverterFrequency Converter Basics 1 VVVF ?? Abbreviation for Variable Voltage and Variable Frequency. ?? 2 CVCF ?? Abbreviation for Constant Voltage and Constant Frequency?? The vo...
I would like to ask what these peripheral devices and communication interfaces are used for. I hope there can be a more specific explanation.I’ve been searching online for a long time, but I haven’t s...
[i=s]This post was last edited by paulhyde on 2014-9-15 09:52[/i] Basic requirements: 1) Realize the acquisition, storage and display of multiple temperature signals by the MCU 2) Realize the dual-mac...
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]
Images in science fiction movies often break through the limits of reality, such as in the movie "Minority Report." Tom Cruise uses a multi-touch screen to browse information. Capacitive sensing te...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
Xiaomi, a well-known Internet phone in mainland China, won a million-unit order contract from China Unicom on November 20 last year, which made Xiaomi famous in mainland China. In April this year...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
The rectified DC voltage is then converted back to AC using power electronics such as insulated gate bipolar transistors.
The output voltage is switched on and off at a high frequency, control...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]
1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[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]
1 Theoretical Analysis
Ultrasonic waves
When propagating in a suspension, the ultrasonic waves that encounter the suspended particles are scattered and attenuated at the interface, an...[Details]
The Challenge:
Improving Siemens Wind
Turbine Controls
System software automated testing for regular releases, validating wind turbine control system components during the developme...[Details]
Test/Measurement
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