Method for printed circuit board power completeness simulation

Abstract

This invention discloses a method for emulating the integrated power supply of a PCB, in which, accurate PI emulation to a PCB is carried out by a device attribute provided by a third party theoretical plot and related power integrality emulation software and the first attribute related to the device models and parameters in the third theoretical plot is added to the second attribute of the same plot symbol, only the second attribute of the theoretical plot symbol is preserved in the net list generated in the theoretical plot, after an emulation tool is called into the list, related models and parameters are presented to related devices based on the first attribute included in the second attribute, then a net list is generated in related supply integrality emulation software, finally, the net list is modified to be replaced to models and parameters assigned in the third party theoretical plot for further compiling and emulation and the parameters assigned in the third party theoretical plot can be the parameter S library.

Description

technical field [0001] The invention relates to electronic technology, in particular to the power integrity simulation technology of printed circuit boards. Background technique [0002] With the development of information technology, electronic devices are getting closer and closer to people's lives. PCB is an important part of most electronic devices. With the increasing complexity and performance of electronic devices, the density of PCBs and the frequency of related devices are increasing, and the challenges that engineers face in high-speed and high-density PCB design are also increasing. In addition to the well-known signal integrity (Signal Integrity, referred to as "SI") issues, power integrity (Power Integrity, referred to as "PI") is also a hot issue in high-speed and high-density PCBs. [0003] Compared with signal integrity, PI is a relatively new technology, mainly discussing the stability of power supply, which is considered to be one of the biggest challenge...

AI Technical Summary

Problems solved by technology

[0010] In practical application, the above scheme has the following problems: the existing technical scheme is inaccurate for the PI simulation results of the third-party schematic diagram

[0011] The main reason for this situation is that the simulation tool in the existing technical solution has no interface with the third-party schematic diagram, and does not read the number (CODE) of the symbol in the third-party schematic diagram, so the model and parameters of the symbol cannot be accurately determined , and the accurate model and information of the symbols in the third-party schematic diagram in the external library cannot be used, and only the default model and parameters can be used, resulting in inaccurate PI simulation results

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