What is Power Integrity Analysis
and Why is it so Critical?
AEi Offers Power Integrity Analysis as
a service. Using your boards files, we analyze the design, creating all the necessary
VRM, decoupling capacitors, bead, and PDN (power distribution network) impedence
models. We generate the PDN impedance and assess regulator Noise and dynamic transient
performance.
Benefits
- Identify power distribution problems early
- Reduce prototype and production board spins
- Identify difficult-to-troubleshoot PCB problems
- Improve Memory, FPGA and High-Speed Circuitry Reliability
Sample Power Integrity Reports
- PDN Assessment
- 3.3V and 1.5V (RH3845/RHFL4913) RTAX Power Rail Analysis
Why do you need to simulate?
- Impedance profile impacts regulation margins - Must be flat!
- Decoupling is not intuitive - Value selection complex
- Need to take the PCB into account
- Capacitor and Via placement is critical
- The VRM impedance impacts the PDN - VRM, Plane, and IC all interact
- Need to understand crosstalk and plane noise propagation
- Rules of Thumb are insufficient
- Part Tolerances DRAMATICALLY impact PDN Impedance Resonances
- Test is expensive and often impractical - Especially if there is no hardware
Power Integrity Analysis
From AEi Systems
- PDN ANALYSIS, Simulation and Testing Expertise and Support
- VRM and Decoupling Measurement, MODELING, and Optimization
- TAGET IMPEDANCE Assessment
- Support for ADS and Mentor Tools and Flows
- Support for TESTING using state of the art Instruments and Probes
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2017 Space
Power Workshop presentation about the lack of awareness of Power Integrity problems,
issues, and risks to mission assurance.
Power
Integrity (‘PI’) is a hot topic in the commercial electronics world. Many hi-reliability
industries have focused on the “PI ecosystem” and its impact on high performance
circuit designs. The power integrity ecosystem is comprised of best design practices,
measurement, modeling, co-simulation using EM techniques, WCCA, and proper test
& measurement training. So it’s not surprising that power integrity is a critical
technology for Space applications. However, it is often surprising how little attention
power integrity is given in high speed digital applications.
Good power
integrity is required to assure that the appropriate power is delivered to high
speed devices, such as FPGAs and DDR memory, as well as SERDES transceivers and
data clocks, just to name a few.
The space
community and both power IC and high speed digital parts suppliers have been slow
to recognize the importance and ramifications of this critical area of design technology,
its implementation, and its assessment, often extracting a huge price on system
performance and system reliability. This video serves as an introduction to Power
Integrity and why it can no longer be ignored.
Power Integrity Videos
 How to Design For Power Integrity
Troubleshooting Distributed Power Systems
Reducing Noise in PDN on Time and In Budget
Keysight - How to Design YouTube Video Series
For more information and Videos on Power Integrity, CLICK
HERE.
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