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PI Expert

PI Expert Online is a web-based program that
takes your specifications and automatically generates a power conversion solution.

  • New products added as they become available
  • Software updates and new features added automatically
  • No download or installation required

PI Expert Online provides everything necessary to build and test a working prototype.

  • Comprehensive Transformer Construction Report – a "ready-to-build" solution
  • Electrical and Mechanical Diagrams
  • Winding Instructions
  • Bill of materials (BOM)
  • Board layout recommendations
New in version 2.9.1
  • Support for InnoSwitch5-Pro in PI Expert (SR ZVS Operation with DCM Only Operation)
    • Built using the latest simulation engine
    • Two-stage topology (Boost + Flyback). Boost converter can be configured as a Boost-Follower (like the implementation in RDR1002)
    • Support for new EMI configurations as used in bench designs
    • Design Evaluation can produce an estimated CoC and Doe Efficiency plot for InnoSwitch5-Pro.
New in version 2.9
  • Support for InnoSwitch3-AQ automotive flyback in PI Expert 
  • The Bill of Materials tab in PI Expert has been refreshed – The BOM report for DigiKey and Mouser is now built into the tool instead of opening in an external browser. 
  • Refreshed File Manager with support for file operations via the right-click context menu. 
  • Design Report in PI Expert is now displayed side-by-side in a highly compact manner.  
  • Design Evaluation can produce an estimated CoC and DOE Efficiency plot for InnoSwitch4-Pro flyback

Learn More

Like PI Expert Online, PI Expert Suite, PI's legacy power supply design tool, gives you all of the necessary information to build and test a working prototype.

  • No need for an Internet connection
  • Updates made on a regular basis

Version Updates

New in version 2.8.6
  • Improvement in Planar Implementation and builder.
  • InnoSwitch3-EP 1250V Flyback Spreadsheet Update
New in version 2.8.3
  • HiperPFS5 + InnoSwitch4-Pro in PI Expert Fixes and Improvements
  • File Manager redesign
  • InnoSwitch3-TN Flyback Spreadsheet Update
  • InnoSwitch4-QR Flyback Spreadsheet Update
New in version 2.8.2
  • HiperPFS5 + InnoSwitch4-Pro in PI Expert Fixes and Improvements
  • LinkSwitch-HP schematic export support
  • Main page redesign
New in version 2.8.1
  • HiperPFS5 + InnoSwitch4-Pro in PI Expert Fixes and Improvements
  • PIXls main spreadsheet view GUI improvement
  • TinySwitch-III, TinySwitch – IV schematic export support
New in version 2.8.0
  • HiperPFS5 + InnoSwitch4-Pro in PI Expert
  • Improvement and bug fixes (?)
New in version 2.7.10
  • 2-sectional bobbin support improvements
  • PIXls design interface improvements for Trf Construction tab
  • Hiper LCS2 spreadsheet update
New in version 2.7.8
  • Schematic export support for TopSwitch-HX
  • Planar transformer support for multiple output supporting spreadsheets
  • 2-sectional bobbin support 
  • Spreadsheet Update
    • TinySwitch-4 Flyback Spreadsheet Update
    • LinkSwitch-XT2SR Flyback Spreadsheet Update
    • InnoSwitch3-CP Flyback Spreadsheet Update
    • InnoSwitch3-Pro Flyback Spreadsheet Update
    • InnoSwitch3-PD Flyback Spreadsheet Update
    • InnoSwitch3-AQ Flyback Spreadsheet Update
New in version 2.7.7
  • Schematic Export 
  • LinkSwitchXT2-SR Flyback spreadsheet
  • LinkSwitchXT2-900V Flyback spreadsheet update
New in version 2.7.5 
  • Wire Wound component 
  • Parallel Split for Primary Winding
  • New Look for Board Layout Tab
  • Read-only mode support for Transformer engine 2.0 PIXls designs
  • DPA devices removing
  • Extra text message on Schematic – Preload resistor
New in version 2.7.4
  • PIXls Planar Transformer Support
  • Single Side Pins
  • Unique (all different) enclosures
New in version 2.7.3
  • Planar TRF Improvements
  • Universal Core DB for PI XLs support update
New in version 2.7.2
  • Planar TRF Improvements
  • PIXls New Look & Feel
  • PIXls MDB 2.0 support update
  • PIXls Spreadsheets update
    • InnoSwitch3-CE Flyback
    • InnoSwitch3-CP Flyback
    • InnoSwitch3-EP Flyback
    • InnoSwitch3-TN Flyback
    • InnoSwitch3-Pro Flyback
    • InnoSwitch3-PD Flyback
    • InnoSwitch3-EP 900V Flyback
    • InnoSwitch3-EP 1700V Flyback
    • InnoSwitch3-AQ Flyback
New in version 2.7.1
  • Planar TRF Improvements
  • Magnetics DB 2.0 for PIXls support 
  • LinkSwitch-TN2 Automotive Flyback Spreadsheet Update 
  • InnoSwitch3-Pro Flyback spreadsheet 
  • InnoSwitch-3 UVOV Calculation update
  • InnoSwitch-4 ACF and QR update with min on-time calculations
New in version 2.7
  • PI Expert now supports the entire InnoSwitch3 family
  • New planar magnetics builder generates an application-specific transformer design within a minute.
    • Planar transformers enable slimmer profile flyback designs of chargers and adapters
    • Complete with printed circuit board (PCB) manufacturer-ready documentation and Gerber files

Full information includes stack specification, vertical and horizontal PCB construction, trace parameters, current density information, and layer resistance


Web Browsers Supported by PI Expert Online

Browser Version* Supported Limited Support** 
Internet Explorer 11   X
Edge >85 X  
Google Chrome >90 X  
Firefox >80 X  
Opera >70   X
Safari >5.17   X
*PI Expert Online will aim to support new versions as they become available.
** PI Expert requires HTML5. Older version browsers may not be
fully compatible.


Design Software Support Overview

Design Software Support for PI ProductsPI ExpertPI xls
BridgeSwitch   X19
BridgeSwitch-2 X19
DPA-Switch X1X2
HiperLCS  X5
HiperLCS-2 X5
HiperPFS-3  X6
HiperPFS-4  X6
HiperTFS-2  X7
InnoSwitch5-Pro X1
InnoSwitch4-CZ  X1
InnoSwitch4-CZ USB PD X1
InnoSwitch4-Pro ACF X1
InnoSwitch4-Pro QR X1
InnoSwitch4-QR X1
InnoSwitch3-CE X1X1
InnoSwitch3-CP X1X1
InnoSwitch3-EP X1X1
InnoSwitch3-TN X1
InnoSwitch3-Pro X1X1
InnoSwitch3-PD X1 X1
InnoSwitch3-EP 900 V  X1
InnoSwitch3-EP 1250 V X1
InnoSwitch3-AQ  X1
InnoMux2-EP  X1
InnoMux2-EP 1700 VX1
InnoMux2-BL and IML204 X1
LinkSwitch-3  X1
LinkSwitch-4  X1
LinkSwitch-CV X1X3
LinkSwitch-HP X1X1
LinkSwitch-LP  X1
LinkSwitch-TN  X4
LinkSwitch-TN2  X10
LinkSwitch-TNZ  X4
LinkSwitch-XT2  X1
LinkSwitch-XT2 900 V X1
LinkSwitch-XT2SR X1
LinkZero-AX  X1
LinkZero-LP  X1
LYTSwitch-0  X12
LYTSwitch-4  X13
LYTSwitch-5  X14
LYTSwitch-6 X1X18
TinySwitch-IIIX1X1
TinySwitch-4 X1X1
TinySwitch-LT  X1
TOPSwitch-GX  X1
TOPSwitch-HX X1X1
TOPSwitch-JX X1X1

NOTES:

  1. Only supported in the Flyback topology
  2. Supported in both the Flyback and Forward topologies
  3. Supported in both the Flyback and Tapped-Buck topologies
  4. Supported in Flyback, Buck and Buck-Boost topologies
  5. Supported in LLC Resonant topology
  6. Supported in Boost topology
  7. Supported in Two Switch Forward topology
  8. Supported in Flyback and Buck topologies
  9. Supported in Flyback, Tapped-Buck, Buck and Buck-Boost topologies
  10. Supported in Flyback, Buck, Buck-Boost and Tapped-Buck Boost topologies
  11. Supported in both the Flyback, Buck and Tapped-Buck topologies
  12. Supported in Buck topology
  13. Supported in Flyback, Buck, Buck Boost and Tapped-Buck topologies
  14. Supported in Flyback, Buck, Boost, Buck-Boost and Tapped-Buck Boost topologies
  15. Supported in Flyback, Buck, Boost, Buck-Boost and Tapped-Buck topologies
  16. Supported in Buck and Buck-Boost topologies
  17. Supported in Switched Valley-Fill PFC with Flyback topology
  18. Supported in Flyback and Switched Valley-Fill PFC with Flyback topologies
  19. Supported in Three-Phase Bridge topology