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Like your age, independently designed proportional regulators, linear temperature displays, thyristor actuators, cut-off current limiting devices, for industrial production, a total of four voltage regulators, two transistors, one trigger transistor, several small diodes, three silicon steel core transformers, two high-current thyristors, this is not a simple cut-and-paste combination of the content of public literature; In that year, it was compiled into the textbook of automation major in a university.
Is our country's education system a waste of money ?
Countries have their own environments and cultural traditions, and they cannot be generalized. The textbooks and courseware of the Massachusetts Institute of Technology in the United States are published on the Internet free of charge, and the Chinese around the world are also obliged to translate, anyone can go to learn, and there are more people who can pass the exam, how many countries can be like him?
In the past, I used to go deep into the student dormitory, guide students to learn analog circuits for free, and purchase components, materials, liquid crystal display boards, and computers for them to conduct experiments at their own expense, tutor them to build mathematical models for free, and guide them to write invention patent documents for free.
For general experimental problems, guide them to solve them on the spot. Even for students whose families can afford to do so, cash support that does not have to be repaid has been provided.
If a student is really interested in this profession, has something to know, has any doubts, or encounters any problems that cannot be solved, just come to me and ask me, as long as I know and have personal experience, I know everything and say everything, and I will answer it immediately without reservation.
Because of this, he offended Hu Jun, and he still persevered after being forced to be laid off.
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"Fundamentals of Analog Electronic Technology" is an important professional basic course for electronics and communication majors, but many students face a lot of learning problems at the beginning of school, and some teachers often ignore some problems that should be emphasized, which makes students feel that it is more difficult and blind to learn analog circuits. In addition, there is a lot of content in this course, and it is difficult for many domestic textbooks to be explained in a delicate and nuanced manner, and many writers often do not give the whole book a unified theme, which makes the content seem redundant.
1. From the immaturity of the resistor era to the maturity of the semiconductor era
Generally, the beginning of the textbook is to talk about some knowledge of semiconductor physics, so that everyone can understand the physical process of diode and transistor.
2. Get out of the "shadow" of linear circuit analysis methods
Analysis methods available for any circuit: KCL, KVL, Nodal Voltage Method, Linear Circuit Analysis Methods: Superposition Principle, Thevenin, Norton.
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Do more questions and do real questions.
Some netizens recommended Mr. Yan's course, and here is a copy of the teacher's latest postgraduate examination circuit information to share with you;
Extraction code: Y273 Mr. Yan Yi made an accurate analysis and explanation of the test center, examination direction, and examination methods of the circuit entrance examination, and pointed out the direction and method for the circuit examination examination, which is worthy of every circuit graduate student's collection and learning;
If you have any questions about resources, please feel free to ask.
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Do more questions, analyze more, first analyze the example questions in the book clearly, and then find some other topics to practice. I won't tell you that after I hung up on the mold electricity, it was this method that made the mold electricity performance worse.
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Do it often, adjust the circuit, solve a few problems, and take it slowly!
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If it's just for the exam, just memorize a few classical circuits and their conventional solutions.
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1. Start from the textbook, grasp the knowledge of the textbook, grasp the key points of each chapter to learn, do not memorize, master the method of learning, such as the design of transistor elements in analog circuits.
2. Seek the help of teachers and friends around you, if there are classmates around you to learn analog circuits, you can study with him, ask each other for advice if there is a place, and actively ask the teacher at the same time.
3. Learn analog circuits, the most important thing is to learn more and do more, if there are conditions, conduct more circuit experiments, learn from practice, and grope forward in the process of designing circuits by yourself, you can achieve better results.
4. Go to the relevant power plant for practical learning.
5. Have perseverance and patience.
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