TY - JOUR
T1 - Bridgeless Push-Pull Resonant AC/DC Converter Featuring Balanced Switching Loss Distribution
AU - Seok, Hwasoo
AU - Junyent-Ferré, Adrià
AU - Kwon, Bong Hwan
AU - Kim, Minsung
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2022/2/1
Y1 - 2022/2/1
N2 - This article proposes a bridgeless push-pull resonant ac-dc converter featuring naturally balanced switching loss at the primary side. The proposed converter employs a current-fed push-pull structure and two rectifier diodes at the primary side and a series resonance circuit at the secondary side. By incorporating two rectifier diodes, a diode bridge can be removed from the grid side of the proposed converter, and thereby that the number of components and primary-side conduction loss are reduced. One major advantage of the proposed converter is balanced loss distribution over one cycle of grid voltage, which guarantees high power transfer capability with enhanced overall switch utilization. The series-resonant circuit provides zero-current switching turn-OFF at the output diode, thereby reducing the reverse recovery loss. The operating principles and theoretical derivations of the converter are discussed in detail. The validity and performance of the proposed converter are verified using a prototype with 1.65 kW output power.
AB - This article proposes a bridgeless push-pull resonant ac-dc converter featuring naturally balanced switching loss at the primary side. The proposed converter employs a current-fed push-pull structure and two rectifier diodes at the primary side and a series resonance circuit at the secondary side. By incorporating two rectifier diodes, a diode bridge can be removed from the grid side of the proposed converter, and thereby that the number of components and primary-side conduction loss are reduced. One major advantage of the proposed converter is balanced loss distribution over one cycle of grid voltage, which guarantees high power transfer capability with enhanced overall switch utilization. The series-resonant circuit provides zero-current switching turn-OFF at the output diode, thereby reducing the reverse recovery loss. The operating principles and theoretical derivations of the converter are discussed in detail. The validity and performance of the proposed converter are verified using a prototype with 1.65 kW output power.
KW - Balanced loss distribution
KW - enhanced switch utilization
KW - heat sink
KW - junction temperature
KW - rectifier diodes
KW - series-resonance
UR - http://www.scopus.com/inward/record.url?scp=85101755902&partnerID=8YFLogxK
U2 - 10.1109/TIE.2021.3059547
DO - 10.1109/TIE.2021.3059547
M3 - Article
AN - SCOPUS:85101755902
SN - 0278-0046
VL - 69
SP - 1443
EP - 1453
JO - IEEE Transactions on Industrial Electronics
JF - IEEE Transactions on Industrial Electronics
IS - 2
ER -