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PI Expert


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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

 

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

Learn More

 

New in version 2.4

  • Updated transformer design engine for InnoSwitch3-CE/CP/EP/Pro offers flexibility in creating custom winding construction and shield windings
  • Features to enable design report creation including change log
  • Improved Optimization. User adjustable parameter ranges and optimization priority between cost, efficiency, core volume and thermal performance
  • Update to PI xls format. Allows hiding section of spreadsheet for easy viewing
  • PI Expert designs for all product families now prefer surface mount components by default
  • Updates to legacy transformer designs for additional clearance/creepage considerations
  • InnoSwitch3 Designs now supports up to 24.5V in PI Expert

New in version 2.3.5

  • LYTSwitch-6 update with new part numbers (feature codes)
  • Added ability to allow second (parallel) SR-FET on the output
  • Transformer construction now supports Parallel Wound Secondary
  • PI xls Design now supports Litz Wire in Transformer Construction
  • PI Device database update with additional part numbers (feature codes) and current limit dependency
  • Update to InnoSwitch-3 bias calculations
  • Update to high output voltage design rules for InnoSwitch3
    - Update to guidance for using VOUT-Pin Linear Regulator
  • PI xls Spreadsheets update to InnoSwitch3-CE, InnoSwitch3-CP, InnoSwitch3-EP, InnoSwitch3-Pro, 900 V InnoSwitch3-EP and InnoSwitch3-AQ

New in version 2.3.4

  • PI Expert now supports Litz Wires
  • DC-DC LYTSwitch-6 now supports Design Evaluation in PI Expert
  • Calculation Engine updates
  • For InnoSwitch-3 Flyback spreadsheets,
    - Interactive Design Evaluation feature for InnoSwitch3-CE/EP/CP/Pro and spreadsheets
    - Updates to InnoSwitch3-EP/CP/Pro with Size 8 GaN devices
  • Minor updates to TOPSwitch-JX Flyback spreadsheet

New in version 2.3.3

  • PI Expert now supports CAPZero-3
  • PI Expert Online new Look and Feel Phase 1 - Quick links to product documents and new design for components selection
  • New performance-optimizing bias winding circuit calculations for InnoSwitch3 Family
  • Minor updates to InnoMux and InnoSwitch3-MX spreadsheet

New in version 2.3

  • PI Expert now supports DC Input for LYTSwitch-6 product family
  • New features in PI Expert Online
    • Enables freezing of components prior to optimization
    • Component Database now includes new Surface Mount parts
    • InnoSwitch3-CP and InnoSwitch3-Pro have a new bias winding circuit calculation for optimizing design performance
    • For all InnoSwitch-3 family devices:
       - Interactive Design Evaluation Report
       - Updated Clamp calculations
  • PI xls now supports LinkSwitchTN2-900V Buck Boost
  • Improvements in PI Expert Online performance and stability

New in version 2.2.10

  • Updates to InnoSwitch-CH/CE/EP/EP 900V Flyback spreadsheets
  • Updates to LYTSwitch-6 Flyback and Switched Valley-Fill PFC with Flyback spreadsheets

New in version 2.2.9

  • Updates to InnoMux and InnoSwitch3-MX spreadsheet
  • Bug fixes

New in version 2.2.8

  • New features in PI Expert Online:
    • InnoSwitch-3 EP/CP/Pro now include additional parts with breakdown voltage of 750 V
    • CAPZero support
    • Calculation and Optimization Engine update for InnoSwitch3 families
    • Magnet wire database update
  • PI xls now supports InnoMux and InnoSwitch3-MX Chipset
  • Minor updates to InnoSwitch-CP Flyback spreadsheet
  • Bug fixes

New in version 2.2.7.14

  • Updates to PI xls InnoSwitch-3 EP/CP/Pro Flyback spreadsheets – Additional parts with breakdown voltage of 750V added to the spreadsheets

New in version 2.2.7

  • Updates to PI xls LYTSwitch-6
  • Major updates to Transformer Engine for all families – Support uneven primary winding split and other enhancements which provides superior transformer optimization
  • PI xls now supports InnoSwitch3-EP 900V Flyback and LinkSwitchTN2-900V Buck spreadsheets
  • Major update to HiperPFS-4 Boost spreadsheet
  • Bug fixes

New in version 2.2.6

  • Minor updates to LinkSwitch-TN2 in Buck Boost topology
  • Transformer Engine now supports Flying Leads
  • Bug fixes

New in version 2.2.5

  • Minor updates to InnoSwitch3-EP Flyback spreadsheet
  • Minor updates to HiperTFS-2 spreadsheet
  • Enable Exhaustive Search Optimization method for InnoSwitch3-CP and InnoSwitch3-Pro
  • Enhancements in PI Expert Online: added more High Voltage Ceramic capacitors to Component Database; improved Post Filter Circuit components selection; and updated new Design Notifications
  • Bug fixes

New in version 2.2.4

  • PI xls now supports TinySwitch-LT in Flyback topology
  • Minor updates to LinkSwitch-HP Flyback spreadsheet
  • Added Current Sense Circuit Slope components to InnoSwitch3-Pro

New in version 2.2

  • PI Expert now supports InnoSwitch3-CP/PRO
  • Improvements in PI Expert Online performance and stability

New in version 2.1.7

  • Minor updates to LinkSwitch-HP Flyback spreadsheet
  • Minor updates to LinkSwitch-TN2 Buck spreadsheet
  • Minor updates to TinySwitch-4 Flyback spreadsheet
  • Minor bug fixes

New in version 2.1.6

  • Minor bug fixing

New in version 2.1.5

  • Minor updates to InnoSwitch-EP/EP 900V Flyback spreadsheets
  • Minor updates to InnoSwitch3-CE/CP/EP/Pro Flyback spreadsheets
  • Minor bug fixing

New in version 2.1.4

  • PI Expert Online now supports Design Sharing. Users can send a copy (or ‘share’) their design with other users through a hyperlink
  • Users can now add brief comments to designs directly in the File Manager
  • Minor updates to InnoSwitch3-CE/CP/EP/Pro Flyback spreadsheets
  • Minor bug fixing

New in version 2.1.3

  • PI Expert now supports two new optimization methodologies for the InnoSwitch-3 Family that significantly increases the number of parameters used in the optimization process. The optimization methodology is user selectable
  • Major updates to LYTSwitch-6 Switched Valley-Fill PFC with Flyback spreadsheet, including Transformer Construction
  • PI xls now supports LinkSwitch-TN2 in Buck Boost topology
  • Improvements in performance and stability
  • Minor bug fixing

New in version 2.0.6

  • PI xls now supports InnoSwitch3-Pro with up to 9 output voltage set-points and improved quick-check feature for USB-PD applications
  • Minor updates to LYTSwitch-6 Switched Valley-Fill PFC with Flyback spreadsheet
  • Minor updates to InnoSwitch3-CE/CP/EP Flyback spreadsheets.
  • Minor bug fixing

New in version 2.0.5

  • PI xls now supports LYTSwitch-6 Switched Valley-Fill PFC with Flyback
  • Minor updates to LYTSwitch-3 Flyback spreadsheets
  • Minor bug fixing

New in version 2.0.4

  • PI Expert now supports folders in File Manager. This helps organize multiple designs and group similar designs e.g. different versions of one design in one place
  • PI xls now supports LinkSwitch-CV in Tapped Buck topology
  • Minor updates to InnoSwitch-3
  • Minor bug fixing

New in version 2.0

  • PI Expert and PI xls now support InnoSwitch3-CE/EP
  • PI Expert supports "Feature Codes" for InnoSwitch3-CE/EP
  • Product Portfolio replaced Product Selector Guide, which is incorporated in New Design Wizard
  • Starting with InnoSwitch-3:
    • PI Expert estimates real losses and efficiency of created design
    • Support synchronous output rectification
  • PI xls now estimates transformer fit and losses for InnoSwitch-3
  • PI xls now supports InnoSwitch3-CP with up to 9 output voltage set-points and improved quick-check feature for USB-PD applications
  • PI xls now supports LYTSwitch-1 (Buck-Boost topology)
  • Improvements in performance and stability
  • Improvements in PI xls spreadsheets:
    • InnoSwitch-CH, InnoSwitch-CE, InnoSwitch-CP, InnoSwitch-EP and InnoSwitch-EP900V (Flyback topology)
    • LYTSwitch-5 (Buck topology)
    • LYTSwitch-7 (Buck topology)

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 Products
PI Expert PI xls

DPA-Switch

X1 X2

HiperLCS

  X5

HiperPFS

  X6

HiperPFS-2

  X6

HiperPFS-3

  X6

HiperPFS-4

  X6

HiperTFS-2

  X7

InnoSwitch3-CE

X1 X1

InnoSwitch3-CP

X1 X1

InnoSwitch3-EP

X1 X1

InnoSwitch3-Pro

X1 X1

InnoSwitch3-MX & InnoMux

  X1

InnoSwitch-CE

  X1

InnoSwitch-CH

  X1

InnoSwitch-CP

  X1

InnoSwitch-EP

  X1

LinkSwitch-II

  X3

LinkSwitch-3

  X1

LinkSwitch-4

  X1

LinkSwitch-CV

X1 X3

LinkSwitch-HP

X1 X1

LinkSwitch-LP

  X1

LinkSwitch-PH

X1 X8

LinkSwitch-PL

X1 X15

LinkSwitch-TN

  X4

LinkSwitch-TN2

  X4

LinkSwitch-XT

X1 X1

LinkSwitch-XT2

  X1

LinkZero-AX

  X1

LinkZero-LP

  X1

LYTSwitch-0

  X12

LYTSwitch-1

  X16

LYTSwitch-2

  X1

LYTSwitch-3

  X10

LYTSwitch-4

  X13

LYTSwitch-5

  X14

LYTSwitch-6

  X18

LYTSwitch-7

  X12

TinySwitch-III

X1 X1

TinySwitch-4

X1 X1

TinySwitch-LT

  X1

TOPSwitch-HX

X1 X1

TOPSwitch-JX

X1 X1

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