TY - GEN
T1 - An interleaved 1-to-6 step-up resonant switched-capacitor converter utilizing split-phase control
AU - Stillwell, Andrew
AU - Heeger, Derek
AU - Meyer, Christopher
AU - Bedair, Sarah
AU - Pilawa-Podgurski, Robert C N
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016
Y1 - 2016
N2 - Hybrid and resonant switched-capacitor (SC) converters have the potential to achieve higher power densities than conventional DC-DC converters. This work presents an interleaved, 20 V to 120 V, resonant SC converter which could be used in applications that benefit from high power density and efficiency. The resonant topology of this SC converter enables a compact and efficient design that minimizes losses. We use a new split-phase control scheme that incorporates precisely timed additional transition states to increase the converter efficiency. A two-phase interleaved design increases the output power and simultaneously decreases the output ripple through harmonic cancellation. In addition to experimental evaluation of a 95.7% efficient, GaN-based prototype of this interleaved converter, an analysis of current sharing between interleaved phases is performed.
AB - Hybrid and resonant switched-capacitor (SC) converters have the potential to achieve higher power densities than conventional DC-DC converters. This work presents an interleaved, 20 V to 120 V, resonant SC converter which could be used in applications that benefit from high power density and efficiency. The resonant topology of this SC converter enables a compact and efficient design that minimizes losses. We use a new split-phase control scheme that incorporates precisely timed additional transition states to increase the converter efficiency. A two-phase interleaved design increases the output power and simultaneously decreases the output ripple through harmonic cancellation. In addition to experimental evaluation of a 95.7% efficient, GaN-based prototype of this interleaved converter, an analysis of current sharing between interleaved phases is performed.
UR - http://www.scopus.com/inward/record.url?scp=85015361930&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015361930&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2016.7854854
DO - 10.1109/ECCE.2016.7854854
M3 - Conference contribution
AN - SCOPUS:85015361930
T3 - ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
BT - ECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
Y2 - 18 September 2016 through 22 September 2016
ER -