Electronic circuit diagram tips

Many people in science and engineering majors will learn electronic circuit diagrams, so how should they learn it? There are various components in the circuit diagram. Looking at the real red and green boards, can you really understand the structure and meaning of the circuit diagram? We will teach you how to do it easily!

First, find the symbols, structures, effects, and functions of electronic components from various electronic books and magazines.

It is most important to learn to understand the communication loop and DC loop in the unit circuit.

Find a radio circuit diagram to clarify the paths of AC signals and DC currents at each unit level and the entire circuit, including reaction loops and resonant loops.

After these three steps of learning, you will no longer feel that you cannot understand circuit diagrams.

Methods and precautions for understanding electrical diagrams

Maintenance diagramming refers to the analysis of circuit diagrams during the repair process. This diagramming is very different from the diagramming when learning the working principles of circuits. It is the analysis of circuit faults that is carried out around maintenance.

1. Repair map recognition project Repair map recognition mainly includes the following four parts:

Establish a maintenance idea in the circuit diagram of the whole machine. Based on the fault phenomenon, determine which circuits the fault may occur in, and determine the next maintenance process (whether to measure voltage or current, and at which point in the circuit to measure).

Based on the relevant data obtained from the measurement, fault analysis is performed on the relevant components in a certain unit circuit of the overall circuit diagram to determine which component has an open circuit or short circuit or performance degradation failure, resulting in the measured data Abnormal seizures. For example, if you first check and find that there is a problem with the power amplification circuit, you can find the power amplifier circuit diagram for detailed analysis.

Check the circuit diagram of a certain part to be repaired and know the operation of this part of the circuit, such as where the signal comes from and where it is sent. Check the DC voltage data at a certain point in the circuit diagram of the whole machine.

2. Methods and precautions for image recognition. When repairing and recognizing images, you should pay attention to the following four questions:

Repair diagramming is a very relevant circuit analysis. It is a diagramming of some circuits with questions. The scope of diagramming is not wide, but it must have a certain depth and be able to contact the theory of faults. It is mainly based on the fault phenomenon and the measured data to decide which circuits to analyze.

When measuring the DC voltage in a circuit, it is mainly to analyze the DC voltage supply circuit; when using the interference inspection method, it is mainly to identify the signal transmission path; when performing circuit fault analysis, it is mainly to analyze the working principle of a certain unit circuit analysis. In the repair diagram, there is no need to conduct a complete system analysis of each part of the circuit in the complete machine circuit diagram.

Summary: By learning and recognizing various components, as well as their abbreviations, structures, functions, etc., you can know what the overall circuit diagram is supposed to do and greatly improve your ability to read circuit diagrams. This requires everyone to continuously accumulate and strive to innovate.