TY - GEN
T1 - Control and Modeling of Current-Sourced Hybrid Switched-Capacitor Converters with Dynamic Loads
AU - Vavrik, William
AU - Delmar, Aria K.
AU - Stillwell, Andrew
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - Modern processor loads place stringent power delivery demands on power density, efficiency, and dynamic performance. Previous work presented a current sourced hybrid switched capacitor with all magnetics located at the input. This design is well-suited to a system-in-package (SiP) implementation, where high-quality input magnetics can be connected externally. This paper develops a control model for the current-sourced converter, with an emphasis on characterizing the converter's ability to respond to a dynamic load. The reduced order model shows converter operation maintains the benefits of a current type buck converter, but the switched-capacitor sizing has a significant impact on the control bandwidth. Sizing equations for the converter are derived and shown to match well with simulated results.
AB - Modern processor loads place stringent power delivery demands on power density, efficiency, and dynamic performance. Previous work presented a current sourced hybrid switched capacitor with all magnetics located at the input. This design is well-suited to a system-in-package (SiP) implementation, where high-quality input magnetics can be connected externally. This paper develops a control model for the current-sourced converter, with an emphasis on characterizing the converter's ability to respond to a dynamic load. The reduced order model shows converter operation maintains the benefits of a current type buck converter, but the switched-capacitor sizing has a significant impact on the control bandwidth. Sizing equations for the converter are derived and shown to match well with simulated results.
KW - current-sourced con-verter
KW - data center PoL converter
KW - hybrid switched-capacitor
UR - http://www.scopus.com/inward/record.url?scp=85202442929&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85202442929&partnerID=8YFLogxK
U2 - 10.1109/COMPEL57542.2024.10613950
DO - 10.1109/COMPEL57542.2024.10613950
M3 - Conference contribution
AN - SCOPUS:85202442929
T3 - 2024 IEEE 25th Workshop on Control and Modeling for Power Electronics, COMPEL 2024
BT - 2024 IEEE 25th Workshop on Control and Modeling for Power Electronics, COMPEL 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 25th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2024
Y2 - 24 June 2024 through 27 June 2024
ER -