Overview:
A circuit diagram usually has dozens or even hundreds of components. Their connections cross and cross and the form changes. Beginners often don't know where to start, how to read it. In fact, the electronic circuit itself has a strong regularity, no matter how complicated the circuit is, it can be found through analysis that it is composed of a few unit circuits. It seems that the children play with the building blocks, although there are only ten or twenty or thirty kinds of blocks, but in the hands of children, they can be built into dozens or even hundreds of plane graphics or three-dimensional models. By the same token, a complicated circuit can be found through analysis, and it is also composed of a few unit circuits. Therefore, beginners only need to familiarize themselves with the basic unit circuits that are commonly used, and then learn to analyze and decompose the power of the circuit. It is not difficult to understand the general circuit diagram.
According to the function of the unit circuit, they can be divided into several categories, each type has many kinds, and there are probably hundreds of all unit circuits. Below we select the most commonly used basic unit circuit to introduce. Let's start with the power circuit.
(Please read the PDF for details)
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