Supported Power Topologies And Connection Diagrams; Synchronous Boost Converter - Wolfspeed SPEEDVAL KIT HALF-BRIDGE MOD-MB-HB-0900V-40A User Manual

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8. SUPPORTED POWER TOPOLOGIES AND CONNECTION DIAGRAMS

IGURE

 Connect buck/boost filter board to the motherboard using the 5 screws and terminal nuts on

the motherboard (Figure 43).

 Plug the fan from the buck/boost filter board into the motherboard.

 Connect a fixed load resistor to prevent output overvoltage. A maximum 1k resistor with

sufficient power rating for the desired output voltage is recommended.

SELECT A CONTROL OPTION

1. External Function Generator

 Connect function generator to "HS IN" and "LS IN" BNC connectors

 Set the two 3-pin jumpers near the BNC connectors to the "BNC" setting

 Ensure dead-time is provided between the input signals. 200 ns minimum is a

recommended starting point.

 Turn on the fan switch before running, and ensure both fans are operating

2. Control Card

 Plug a control card into the control card slot. Ensure firmware has been loaded per

instructions in user guide.

 Connect control card to PC to operate the program.

 Attach the voltage feedback cable between the buck/boost filter board and

motherboard

 Set the two 3-pin jumpers near the BNC connectors to the "CTRLR" setting

 Fans should operate automatically when testing starts. Ensure both fans are operating

PRD-06829 REV. 1, December 2022

SpeedVal Kit™ and Wolfspeed logo is a trademark of Wolfspeed, Inc. Other trademarks, product and company names

are the property of their respective owners and do not imply specific product and/or vendor endorsement,

sponsorship or association.

43: C

ONNECTION

IAGRAM FOR

SpeedVal Kit™ Half-Bridge User Guide

YNCHRONOUS

OOST

ONVERTER

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