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Circuit schematic design process steps

Schematic diagram design is the basis of circuit design. Only on the basis of well-designed schematic diagram can the design of printed circuit board and circuit simulation be carried out.

The quality of the circuit schematic design will directly affect the follow-up work. In general, to design a circuit schematic diagram, first set the parameters of the drawing in the schematic diagram editor, then make an overall plan for the circuit diagram, and then place components on the drawing and perform layout and wiring. After the drawing is completed, add notes and check and modify as needed, and finally print out the designed drawings.

(1) Create a new schematic file. Select drawing templates based on well-conceived schematics.

(2) Set up the editing environment. Adjust the size of the drawing at any time during the design according to the circuit design simulation parameter settings, the color properties of the chart and the space body, etc. In the absence of special requirements, the default template is generally used.

(3) Place components. Add the required components from the component library, place them in the appropriate position in the schematic editing window, and set the relevant parameters of the components.

(4) Schematic wiring. Use wires, buses and labels to connect components, and finally make the schematic drawing correct and beautiful.

(5) Parametric testing or graph simulation. After the circuit diagram wiring is completed, perform relevant parameter tests or diagram simulations according to the circuit function. For example, to design an amplification circuit, you can add a virtual signal source at the input end and a virtual oscilloscope at the output end to observe whether the signal is amplified; you can also perform a mixed chart simulation to compare the input and output signals to observe whether the signal is amplified.

(6) Electrical rule detection.

(7) Adjustment.

(8) Generate reports.

(9) Generate a network table.

(10) Generate other reports. If there is no problem with the circuit design, output related reports, such as BOM (Bill of Components) reports.

(11) Save. Save the system schematic diagram and related documents, and complete the schematic design.