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

• PI Expert FAQs
• Watch this 3-part webinar about PI Expert Online:Pt 1: Introduction to PI Expert Online
  
  

New in version 2.6

• 酒店oSwitch4-CZ support in PI Expert
• Improvements and fixes for other product families

New in version 2.5.3

• Improvements in PI Expert InnoSwitch-3 product families

New in version 2.5.2

• Added Litz Wires support for all InnoSwitch-3 family devices
• PI Xls now supports HiperLCS-2
• 小更新Hiper PFS-4提高电子表格
• Minor updates to Hiper PFS-5 Boost new spreadsheet

New in version 2.4.7

• New features in PI Expert Online:
  • 酒店oSwitch3 Designs now supports RC Feedforward circuit in PI Expert
• Transformer Engine 2.0 support added for HiperPFS-4 family in PIXls
• PI Xls now supports InnoSwitch3-TN
• Minor updates to InnoSwitch4-CZ Flyback spreadsheet
• Minor updates to InnoSwitch4-CZ USB-PD Flyback spreadsheet
• Minor updates to InnoSwitch3-AQ Flyback spreadsheet
• Minor updates to InnoSwitch3-EP 1700V Flyback spreadsheet
• Minor updates to Hiper-PFS4 Boost spreadsheet

New in version 2.4.6

• Transformer Engine 2.0 support added for 16 most popular PIXls spreadsheets
• Minor improvements to InnoSwitch3-AQ Flyback spreadsheet
• Improved AC Losses Calculations

New in version 2.4.5

• Firmware Configuration Feature now available

New in version 2.4.4

• 酒店oSwitch3-PD included in PIXls
• Transformer Engine 2.0 support added for InnoSwitch3 and InnoSwitch4 families in PIXls
• Inductor engine in PIXls for LinkSwitch-TN2 family
• Enhancements and fixes
  • PI Xls Designer ‘On Display’ Information Panel
  • TE2.0 Stack Structure – Extended Winding information added to winding diagram
  • Updates to file management system
  • PIXls Spreadsheet updates

New in version 2.4.3

• TinySwitch-3/4 optimization issue resolution
• General Tiny-like PI Device optimization update
• USB-PD GUI logic update
• Zener Diode Database update
• PI Xls Spreadsheets update to TinySwitch-III, TinySwitch-4, TopSwitch-JX, HiperPFS-2

New in version 2.4.2

• USB PD GUI - changes /modifications.
• Updates to algorithm for current sensing circuit component selection
• Change of preferences for SR MOSFET and VBUS Switch components
• Simplification of winding layer adjustment algorithm for optimal transformer design
• Updated several PI Xls spreadsheets

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
• 酒店oSwitch3 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
• 新的优化偏置绕组电路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
  • 酒店oSwitch3-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:
  • 酒店oSwitch-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
• πxls现在支持InnoSwitch3-CP高达9欧tput 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:
  • 酒店oSwitch-CH, InnoSwitch-CE, InnoSwitch-CP, InnoSwitch-EP and InnoSwitch-EP900V (Flyback topology)
  • LYTSwitch-5 (Buck topology)
  • LYTSwitch-7 (Buck topology)

Design Software Support Overview

Design Software Support for PI Products	PI Expert	PI xls
BridgeSwitch		X19
DPA-Switch	X1	X2
HiperLCS		X5
HiperPFS		X6
HiperPFS-2		X6
HiperPFS-3		X6
HiperPFS-4		X6
HiperTFS-2		X7
酒店oSwitch4-CZ		X1
酒店oSwitch3-CE	X1	X1
酒店oSwitch3-CP	X1	X1
酒店oSwitch3-EP	X1	X1
酒店oSwitch3-Pro	X1	X1
酒店oSwitch3-EP 900 V		X1
酒店oSwitch3-AQ		X1
酒店oSwitch3-MX & InnoMux		X1
酒店oSwitch-CE		X1
酒店oSwitch-CH		X1
酒店oSwitch-CP		X1
酒店oSwitch-EP		X1
酒店oSwitch-EP 900 V		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		X10
LinkSwitch-TNZ		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	X1	X18
LYTSwitch-7		X12
TinySwitch-III	X1	X1
TinySwitch-4	X1	X1
TinySwitch-LT		X1
TOPSwitch-GX		X1
TOPSwitch-HX	X1	X1
TOPSwitch-JX	X1	X1

NOTES:

1. Flyba仅支持ck 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