TY - GEN
T1 - Development of a High Power Density GaN-based Transistor Low-Voltage High-Current Phase-Shift Full-Bridge Current Doubler Converter for Electric Vehicles
AU - Kim, Sangjin
AU - Naradhipa, Adhistira M.
AU - Choi, Sewan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - In this paper, a 1.8kW,200V-310V/12V-15V, 700kHz DC-DC converter with high power density of 8.1kW/L (132.7W/in3) is developed for electric/hybrid vehicle application. In order to achieve high power density, GaN-based transistors at 700kHz switching frequency are applied to reduce passive component volumes. Furthermore, reduction of planar transformer size is achieved by applying the concept of the matrix transformer with flux cancellation. The characteristics of the 1st prototype and the 2nd prototype considered to improve the power density are covered and the design considerations of the gate driver for a high switching frequency of 700 kHz are covered. A three-dimensional (3D) Maxwell FEA simulation results are presented to give an accurate estimation of the core loss and flux distribution of the magnetic components and experimental results are also provided from a 1.8kW prototype.
AB - In this paper, a 1.8kW,200V-310V/12V-15V, 700kHz DC-DC converter with high power density of 8.1kW/L (132.7W/in3) is developed for electric/hybrid vehicle application. In order to achieve high power density, GaN-based transistors at 700kHz switching frequency are applied to reduce passive component volumes. Furthermore, reduction of planar transformer size is achieved by applying the concept of the matrix transformer with flux cancellation. The characteristics of the 1st prototype and the 2nd prototype considered to improve the power density are covered and the design considerations of the gate driver for a high switching frequency of 700 kHz are covered. A three-dimensional (3D) Maxwell FEA simulation results are presented to give an accurate estimation of the core loss and flux distribution of the magnetic components and experimental results are also provided from a 1.8kW prototype.
KW - DC-DC converter
KW - Electric vehicle
KW - High power density
KW - High-frequency
UR - https://www.scopus.com/pages/publications/85076788363
U2 - 10.1109/ECCE.2019.8912703
DO - 10.1109/ECCE.2019.8912703
M3 - Conference contribution
AN - SCOPUS:85076788363
T3 - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
SP - 1364
EP - 1369
BT - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Y2 - 29 September 2019 through 3 October 2019
ER -
