TY - GEN
T1 - Split-phase control
T2 - 2014 IEEE 15th Workshop on Control and Modeling for Power Electronics, COMPEL 2014
AU - Lei, Yutian
AU - May, Ryan
AU - Pilawa-Podgurski, Robert C.N.
PY - 2014
Y1 - 2014
N2 - Switched-capacitor (SC) converters are gaining popularity due to their high power density and suitability for on-chip integration. Soft-charging techniques can be used to eliminate the current transient during the phase switching instances, and improve the power density and efficiency of SC converters. In this paper, we propose a split-phase control scheme that enables the Dickson converter to achieve complete soft-charging operation, which is not possible using the conventional two-phase control. An analytical method is extended to understand and design split-phase controlled Dickson converters. The proposed technique and analysis are verified by both simulation and experimental results. An 8-to-1 step-down Dickson converter is built to demonstrate the reduction in output impedance and improvement in efficiency as a result of the split-phase controlled soft-charging operation.
AB - Switched-capacitor (SC) converters are gaining popularity due to their high power density and suitability for on-chip integration. Soft-charging techniques can be used to eliminate the current transient during the phase switching instances, and improve the power density and efficiency of SC converters. In this paper, we propose a split-phase control scheme that enables the Dickson converter to achieve complete soft-charging operation, which is not possible using the conventional two-phase control. An analytical method is extended to understand and design split-phase controlled Dickson converters. The proposed technique and analysis are verified by both simulation and experimental results. An 8-to-1 step-down Dickson converter is built to demonstrate the reduction in output impedance and improvement in efficiency as a result of the split-phase controlled soft-charging operation.
UR - http://www.scopus.com/inward/record.url?scp=84906815226&partnerID=8YFLogxK
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U2 - 10.1109/COMPEL.2014.6877145
DO - 10.1109/COMPEL.2014.6877145
M3 - Conference contribution
AN - SCOPUS:84906815226
SN - 9781479921478
T3 - 2014 IEEE 15th Workshop on Control and Modeling for Power Electronics, COMPEL 2014
BT - 2014 IEEE 15th Workshop on Control and Modeling for Power Electronics, COMPEL 2014
PB - IEEE Computer Society
Y2 - 22 June 2014 through 25 June 2014
ER -