PCB Circuit Board Design Details and Design Methods

The printed circuit board design process includes drawing circuit schematics, planning printed circuit boards, component packaging, component layout, automatic wiring, manual adjustment, saving output, etc. The following is the design process of the printed circuit board.

1. draw circuit diagram principle

This is the basis of circuit board design, mainly to complete the circuit schematic drawing, and generate network reports.

2. Plan the circuit board

Before drawing the circuit board, the user should make a preliminary plan for the circuit board, including setting the physical size of the board, using several layers of the board, packaging and installation of the components, etc., which determines the framework for the design of the printed circuit board.

3. Set parameters

It is mainly to set the distribution parameters and wiring parameters of the components. Usually, these parameters can be selected as the default value of the system, or after one setting, there is no need to change.

4. component packaging.

The so-called component package is the shape of the component, and each component loaded into the printed circuit board should have the corresponding package, so as to ensure the normal wiring of the circuit board.

5. Component layout.

After the planned circuit board, the components can be placed in the board frame, using the automatic wiring function provided by protel 99 SE, the components can be automatically routed.

6. automatic wiring

Protel 99 SE provides a powerful automatic routing function, which can automatically route the arranged components, and under normal circumstances, automatic routing will not make mistakes.

7. manual adjustment

After the automatic wiring is completed, the user can adjust the more special components to ensure compliance with the corresponding rules, so as to ensure that the anti-interference of the circuit board meets the standard.

8. Save the output

After wiring the components and making the correct adjustments, the final design of the printed circuit board is completed, and then the drawings are printed and the output is saved.