2022-11-26
What preparation is needed before pcb design?
1. System specifications
First of all, plan out the system specifications of the electronic equipment. It includes system functions, cost limits, size, operation conditions, etc.
2. System function block diagram
Next, we must make a functional block diagram of the system. The relationship between squares must also be marked.
If the system is divided into several PCBs, it can not only reduce the size, but also enable the system to upgrade and exchange parts. The system function block diagram provides the basis for our segmentation. For example, a computer can be divided into a motherboard, a display card, a sound card, a floppy disk drive, a power supply, and so on.
3. Packaging method and PCB size
Determine the packaging method and the size of each PCB. When the technology and the number of circuits used by each PCB are determined, the next step is to determine the size of the board. If the design is too large, the packaging technology will be changed or the segmentation will be performed again. When selecting technologies, the quality and speed of the circuit diagram should also be taken into account.
4. Draw the circuit overview of all PCBs
The interconnection details between parts shall be shown in the overview. PCB in all systems must be traced. Nowadays, most of them adopt CAD (Computer Aided Design).
5. Simulation operation of preliminary design
In order to ensure that the designed circuit diagram can work normally, it must first be simulated with computer software. This kind of software can read the design drawing and display the circuit operation in many ways. This is much more effective than actually making a sample PCB and then measuring it manually.
First of all, plan out the system specifications of the electronic equipment. It includes system functions, cost limits, size, operation conditions, etc.
2. System function block diagram
Next, we must make a functional block diagram of the system. The relationship between squares must also be marked.
If the system is divided into several PCBs, it can not only reduce the size, but also enable the system to upgrade and exchange parts. The system function block diagram provides the basis for our segmentation. For example, a computer can be divided into a motherboard, a display card, a sound card, a floppy disk drive, a power supply, and so on.
3. Packaging method and PCB size
Determine the packaging method and the size of each PCB. When the technology and the number of circuits used by each PCB are determined, the next step is to determine the size of the board. If the design is too large, the packaging technology will be changed or the segmentation will be performed again. When selecting technologies, the quality and speed of the circuit diagram should also be taken into account.
4. Draw the circuit overview of all PCBs
The interconnection details between parts shall be shown in the overview. PCB in all systems must be traced. Nowadays, most of them adopt CAD (Computer Aided Design).
5. Simulation operation of preliminary design
In order to ensure that the designed circuit diagram can work normally, it must first be simulated with computer software. This kind of software can read the design drawing and display the circuit operation in many ways. This is much more effective than actually making a sample PCB and then measuring it manually.
