TY - GEN
T1 - Integrated Three-Level Flying Capacitor DC-DC Buck Converter for CubeSat Applications
AU - Marin, Jorge
AU - Gak, Joel
AU - Cortes, Alfonso
AU - Calarco, Nicolas
AU - Oliva, Alejandro
AU - Lindstrom, Esteban
AU - Miguez, Matias
AU - Falcon, Alfredo
AU - Osterman, Niria
AU - Rojas, Christian A.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this work, the design, simulation and implementation of a DC-DC buck converter based on the Three-level Flying Capacitor Converter architecture for space applications, namely CubeSat systems, using the Skywater 130nm CMOS technology is presented. The power circuits are fully integrated on-chip, including the power MOSFETs and the gate drivers, to obtain an efficient and compact implementation. This versatile power electronics building block, is also a contribution to the open source IC design community. Additionally, tests structures for the flying capacitor and the output filter inductors are included to characterize the technology passive. The active area of the dual-core circuit (including power switches and drivers) occupies less than 1mm2 of silicon in this process. Simulated results shows a peak efficiency of 87% at 140mA load current for the single core converter, and a peak efficiency of 93.3% at 555mA load current for the dual-core converter, at 1MHz switching frequency. It also shows a 85% peak efficiency for full on-chip flying capacitor single-core implementation at 10MHz operation.
AB - In this work, the design, simulation and implementation of a DC-DC buck converter based on the Three-level Flying Capacitor Converter architecture for space applications, namely CubeSat systems, using the Skywater 130nm CMOS technology is presented. The power circuits are fully integrated on-chip, including the power MOSFETs and the gate drivers, to obtain an efficient and compact implementation. This versatile power electronics building block, is also a contribution to the open source IC design community. Additionally, tests structures for the flying capacitor and the output filter inductors are included to characterize the technology passive. The active area of the dual-core circuit (including power switches and drivers) occupies less than 1mm2 of silicon in this process. Simulated results shows a peak efficiency of 87% at 140mA load current for the single core converter, and a peak efficiency of 93.3% at 555mA load current for the dual-core converter, at 1MHz switching frequency. It also shows a 85% peak efficiency for full on-chip flying capacitor single-core implementation at 10MHz operation.
KW - CubeSat
KW - DC-DC
KW - Three-level Flying Capacitor Converter
KW - power MOSFETs
UR - http://www.scopus.com/inward/record.url?scp=85153737356&partnerID=8YFLogxK
U2 - 10.1109/CAE56623.2023.10087013
DO - 10.1109/CAE56623.2023.10087013
M3 - Contribución a la conferencia
AN - SCOPUS:85153737356
T3 - 2023 Argentine Conference on Electronics, CAE 2023 - Congreso Argentino de Electronica 2023, CAE 2023
SP - 90
EP - 95
BT - 2023 Argentine Conference on Electronics, CAE 2023 - Congreso Argentino de Electronica 2023, CAE 2023
A2 - Julian, Pedro
A2 - Andreou, Andreas G.
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th Argentine Conference on Electronics, CAE 2023
Y2 - 9 March 2023 through 10 March 2023
ER -