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Impedance detection method, system and device for PCB power supply and storage medium

An impedance detection and power supply technology, applied in CAD circuit design, electrical digital data processing, computer-aided design, etc., can solve the problem that the accuracy of simulation needs to be improved, and achieve the effect of improving power integrity and avoiding risk design.

Pending Publication Date: 2020-12-11
INSPUR BUSINESS MACHINE CO LTD
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  • Claims
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Problems solved by technology

At present, there are some mature simulation methods, but the accuracy of the simulation still needs to be improved.

Method used

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  • Impedance detection method, system and device for PCB power supply and storage medium
  • Impedance detection method, system and device for PCB power supply and storage medium
  • Impedance detection method, system and device for PCB power supply and storage medium

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Embodiment Construction

[0044] The core of the present invention is to provide a PCB power supply impedance detection method, which is conducive to obtaining more accurate impedance detection results, and can more accurately determine the design defects of the PCB power supply, thereby avoiding risky design and improving the integrity of the power supply. sex.

[0045] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] Please refer to figure 1 , figure 1 It is an implementation fl...

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Abstract

The invention discloses an impedance detection method for a PCB power supply. The method comprises the steps of determining a ground equivalent impedance value of a load chip according to the parameter information of a PCB after simulation preparation operation is completed; constructing a target model based on the equivalent impedance value to the ground, and setting the target model between thepower supply output end and the ground; and setting a simulation frequency and carrying out simulation to obtain an impedance detection result under the simulation frequency. By applying the scheme provided by the invention, a more accurate impedance detection result can be obtained, the design defect of the PCB power supply can be determined more accurately, the risk design is avoided, and the power supply integrity is improved. The invention further provides an impedance detection system and device for the PCB power supply and a storage medium, which have corresponding technical effects.

Description

technical field [0001] The invention relates to the technical field of PCB design, in particular to an impedance detection method, system, equipment and storage medium of a PCB power supply. Background technique [0002] Frequency-domain impedance is one of the key points in power integrity design. For example, in practical applications, the arrangement of decoupling capacitors is usually used to make the impedance value of the power system below the target impedance from the low frequency band to the high frequency band. Effectively reduce power consumption and improve system stability and efficiency. [0003] In particular, Pol (point-of-load, point-of-load) power supplies are often used in board-level power systems to pursue ultimate efficiency, especially in the case of low-voltage and high-current conditions, where changes in load will be amplified and reflected in losses . As an auxiliary design method, simulation can detect the design defects of PCB power supply in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/333G06F30/3323G06F115/12
CPCG06F30/333G06F30/3323G06F2115/12
Inventor 刘昊
Owner INSPUR BUSINESS MACHINE CO LTD
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