Introduction - Wolfspeed SPEEDVAL KIT HALF-BRIDGE MOD-MB-HB-0900V-40A User Manual

1. INTRODUCTION

The purpose of the SpeedVal Kit™ platform is to provide a single evaluation platform that allows almost all
discrete Wolfspeed® SiC MOSFETs and diodes (650 V to 1200 V) to be evaluated and tested in a common
platform. The half-bridge motherboard supports testing that measures switching energy using double-
pulse testing (DPT) as well as system testing in many common topologies including buck and boost, both
synchronous and asynchronous. Each power daughter card comes fully assembled with its own thermal
management system comprised of a heatsink and thermal isolator.
The SpeedVal Kit platform allows different Wolfspeed SiC MOSFETs and diodes to be swapped in a matter
of seconds. Moreover, by testing different devices on the same platform, with the same layout and gate
driver, any measured differences can be correctly attributed to the device itself. Historically, testing
MOSFETs in different packages required testing on different boards which may have different gate drivers.
It was impossible to know what, if any, of the measured differences were due to the MOSFET itself or due to
other variables such as the layout and gate driver. The SpeedVal Kit platform allows users to swap out not
only MOSFETs of different R
The SpeedVal Kit platform has many compatible gate driver cards available from carefully selected
partners that allow users to compare device performance with different gate drivers while holding all other
variables constant. This allows users to quickly select the best combination of device and gate driver for
their application. This pairing can be carried into the user's own design, reducing design risk and
shortening the product development cycle time.
The SpeedVal Kit platform built on the half-bridge motherboard works with the following other building
blocks:
I. Power Daughter Card (1 required) – Half-bridge configuration of two MOSFETs or a MOSFET
and a diode
II. Gate Driver Card (1 required) – Two-channel driver card including gate power supplies
III. Control Card and User Interface (optional)
IV. Buck Boost Filter Board (optional)
V. Air Core Inductor (optional) – For double-pulse testing
PRD-06829 REV. 1, December 2022
© 2022 Wolfspeed, Inc. All rights reserved. Wolfspeed® and the Wolfstreak logo are registered trademarks and the
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.
but also MOSFETs in different packages.
DS(ON)
SpeedVal Kit™ Half-Bridge User Guide
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