© 2021 Cree, Inc. All rights reserved. Cree
®
, the Cree logo, Wolfspeed
®
, and the Wolfspeed logo are trademarks of Cree, Inc.
22
• Power Components Comparison between Si, SiC and GaN
• Technology Comparison
• Parameters Comparison
• Topology and Components Selection of PFC
– Design Considerations, Topology Selection
– Component Selection
– Wolfspeed Reference Design
• Topology and Components Selection of DCDC
– Design Considerations, Topology Selection
– Component Selection
– Wolfspeed Reference Design
Summary
Wolfspeed SiC Enables Offline Switching
Mode Power Supplies(SMPS)
• Trend and Architecture of offline SMPS
© 2020 Cree, Inc. All rights reserved. Cree
®
, the Cree logo, Wolfspeed
®
, and the Wolfspeed logo are trademarks of Cree, Inc.
3
Offline SMPS and the Trends
© 2021 Cree, Inc. All rights reserved. Cree
®
, the Cree logo, Wolfspeed
®
, and the Wolfspeed logo are trademarks of Cree, Inc.
44
Offline SMPS
• Where: Data centers, Telecom base station, Mining
Power, etc.
• Trends:
• High efficiency for 80+ Platinum/Titanium,
OCP3.0, High efficiency 5G for Carbon-Neutral
• High Power Density
• Lower overall system cost
© 2021 Cree, Inc. All rights reserved. Cree
®
, the Cree logo, Wolfspeed
®
, and the Wolfspeed logo are trademarks of Cree, Inc.
55
Poll question 1
What percentage of the total electricity is consumed by data center in the world?
A. <2%
B. ~5%
C. ~10%
D. >20%