TY - GEN
T1 - A New ZVS Switched-Capacitor DC-DC Converter with Low Boost Inductance
AU - Kim, Jaehoon
AU - Kim, Sunju
AU - Sagpazar, Nur Banu
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2019 The Korean Institute of Power Electronics (KIPE).
PY - 2019/5
Y1 - 2019/5
N2 - This paper proposes a new ZVS switched-capacitor DC-DC converter with low boost inductance. Proposed converter can reduce the boost inductance because applied voltage of the boost inductor was reduced by using flying capacitor C-f, In addition, since the operating frequency of the boost inductor L-f is doubled by shifting the phase between the switches S-3 and S-4, boost inductance can be further reduced. It can also achieve zero voltage switching (ZVS) turn-on of all switches using auxiliary inductor L-a and capacitor C-a. The operation principle, interleaving effects and design of passive components to achieve ZVS are presented. Also, comparison of different topologies is presented to shows the superior performance of the proposed converter. Experimental results on a 600W prototype are provided to validate the proposed concept. In addition, experimental waveforms of 2-phase interleaved converter suitable for high power applications are provided.
AB - This paper proposes a new ZVS switched-capacitor DC-DC converter with low boost inductance. Proposed converter can reduce the boost inductance because applied voltage of the boost inductor was reduced by using flying capacitor C-f, In addition, since the operating frequency of the boost inductor L-f is doubled by shifting the phase between the switches S-3 and S-4, boost inductance can be further reduced. It can also achieve zero voltage switching (ZVS) turn-on of all switches using auxiliary inductor L-a and capacitor C-a. The operation principle, interleaving effects and design of passive components to achieve ZVS are presented. Also, comparison of different topologies is presented to shows the superior performance of the proposed converter. Experimental results on a 600W prototype are provided to validate the proposed concept. In addition, experimental waveforms of 2-phase interleaved converter suitable for high power applications are provided.
KW - DC-DC converter
KW - SCC(switched-capacitor converter)
KW - Soft switching
KW - Step-up
UR - http://www.scopus.com/inward/record.url?scp=85071630006&partnerID=8YFLogxK
U2 - 10.23919/icpe2019-ecceasia42246.2019.8796884
DO - 10.23919/icpe2019-ecceasia42246.2019.8796884
M3 - Conference contribution
AN - SCOPUS:85071630006
T3 - ICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
SP - 1939
EP - 1944
BT - ICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia
Y2 - 27 May 2019 through 30 May 2019
ER -