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How to design electronic circuits?
The main direction of electronic information engineering is the control and processing of small signals, so analog electricity is very important. Counting electricity is only to cultivate your time series logic ability, and you will hardly use the content in the textbook in actual operation. The steps of circuit design should be: 1, to understand the design requirements and define the design tasks; 2. Put forward design ideas and schemes; 3. Build the circuit module according to the scheme and draw the circuit diagram; 4. The scheme is verified by calculation and experiment.

If you have no idea about designing circuits, your modeling knowledge is too thin. Generally speaking, when you get the design requirements, you should have a general idea, such as some basic modules to be used in processing, such as amplification, filtering, shaping, comparison and so on. So you need to look at some application circuits on the template again, write down the common ones and use them as signal processing modules. Others, such as single chip microcomputer, sensor and special function chip, are all used by experience. Do something by yourself to broaden your horizons.

If you want to master the method of designing circuits quickly, I suggest you read the book Electronic Competition for College Students, which can provide many design ideas, and the ideas are very important.

Circuit Design of the National Undergraduate Electronic Design Competition, Huang Zhiwei, Press: Beihang University Press.