PDN Analysis

Definition

PDN stands for Power Delivery Network, and it refers to the electrical system that supplies power to various components on a printed circuit board (PCB) or an electronic device. It includes the power supply, supply planes, ground planes, and power distribution traces. A PDN must be designed in a way that ensures stable and reliable power supply to all components, with minimal voltage fluctuations, noise, and electromagnetic interference.

Purpose of PDN analysis

• Ensure Power Supply Stability: The primary purpose of PDN analysis is to ensure a stable power supply to all components on the PCB. The analyses help identify areas of high current density, voltage fluctuations, and noise that can affect component performance and reliability.
  
• Improve Signal Integrity: PDN analysis is also critical for improving signal integrity on the PCB. A stable power supply helps minimize noise and electromagnetic interference that can impact signal quality and cause circuit errors.
  
• Prevent Thermal Issues: By conducting thermal analyses within the PDN, areas with excessive heat that can affect component reliability and lifespan can be identified. This allows for taking measures to prevent thermal issues.
  
• Optimize PCB Design: PDN analysis assists in optimizing PCB design by identifying and rectifying potential power supply issues before production begins. This saves time and costs by avoiding the need to address errors and problems later.

Features in PDN Analysis Tools

Current Density Analysis
PDN analysis tools enable the analysis of current density in power traces and supply systems to identify areas with high current loads.

Voltage Profile Analysis
The tools analyze voltage profiles to assess voltage fluctuations and regulation within the PDN.

Thermal Analyses
PDN analysis tools perform thermal simulations to identify areas with potential thermal issues.

Noise Analysis
The analyses help identify noise levels within the PDN and identify potential electromagnetic compatibility (EMC) problems.

Reporting and Visualization
PDN analysis tools generate reports and visualization tools to make it easy for designers to understand the results and take necessary actions.