TY - GEN
T1 - ZVS boost converter with wide ZVS range
AU - Do, Hyun Lark
PY - 2011
Y1 - 2011
N2 - A zero-voltage-switching (ZVS) boost converter with wide ZVS range is proposed in this paper. A ripple-free cell is added to a conventional two-switch boost converter. The ripple-free cell provides a ripple-free input current and ZVS operation of two switches. Due to the ZVS feature, the switching loss is significantly reduced. However, the conduction loss due to the ripple-free cell increases. Especially at light loads, the conduction loss is much larger than the switching loss. Therefore, by disabling the ripple-free cell, the efficiency at light load is improved. The ZVS feature is maintained still at light load. The operation principle and steady-state analysis of the proposed converter are provided. A prototype of the proposed converter is developed, and its experimental results are presented for validation.
AB - A zero-voltage-switching (ZVS) boost converter with wide ZVS range is proposed in this paper. A ripple-free cell is added to a conventional two-switch boost converter. The ripple-free cell provides a ripple-free input current and ZVS operation of two switches. Due to the ZVS feature, the switching loss is significantly reduced. However, the conduction loss due to the ripple-free cell increases. Especially at light loads, the conduction loss is much larger than the switching loss. Therefore, by disabling the ripple-free cell, the efficiency at light load is improved. The ZVS feature is maintained still at light load. The operation principle and steady-state analysis of the proposed converter are provided. A prototype of the proposed converter is developed, and its experimental results are presented for validation.
KW - bidirectional active switch
KW - boost converter
KW - ripple-free
KW - Zero-voltage-switching
UR - https://www.scopus.com/pages/publications/84857285156
U2 - 10.1007/978-3-642-25905-0_54
DO - 10.1007/978-3-642-25905-0_54
M3 - Conference contribution
AN - SCOPUS:84857285156
SN - 9783642259043
T3 - Lecture Notes in Electrical Engineering
SP - 413
EP - 417
BT - Advances in Electrical Engineering and Electrical Machines
T2 - 2nd International Conference of Electrical and Electronics Engineering, ICEEE 2011
Y2 - 1 December 2011 through 2 December 2011
ER -