Investigation of Adaptive Synchronous Rectifier (SR) Driving Scheme for LLC/CLLC Resonant Converter in EV On-Board Chargers

被引：0

作者：

Zhang, Zhengda ^{[1
]}

Liu, Chunhui ^{[1
]}

Si, Yunpeng ^{[1
]}

Liu, Yifu ^{[1
]}

Lei, Qin ^{[1
]}

机构：

[1] Arizona State Univ, Sch Elect Comp & Energy Engn, Tempe, AZ 85281 USA

来源：

2020 THIRTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2020) | 2020年

关键词：

Synchronous rectification; resonant converter; EV on-board charger; high frequency; high power density; WBG devices; DESIGN METHODOLOGY;

D O I：

10.1109/apec39645.2020.9124270

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

For LLC/CLLC resonant converters, synchronous rectifiers (SR) are desired to be turned off at the current zerocrossing moment to avoid the additional conduction loss and the circulation current. In this paper, an adaptive SR driving scheme is proposed for LLC/CLLC resonant converter, which guarantees the ZCS turn-off of the SRs and improves the system efficiency. The proposed method senses the drain-to-source voltage of only one switch, which makes it easy to implement. Meanwhile, a simple drain-to-source voltage sensing circuit is proposed. The proposed circuit can be directly interfaced with the digital controller without any signal conditioning circuit. Moreover, external RC circuits are employed to compensate the turnon moment discrepancy between the SR and its corresponding primary side switch. A 6.6 kW/500 kHz CLLC resonant converter prototype is built, which is used as the isolated dc-dc stage for an EV on-board charger. The proposed adaptive driving scheme is validated by experimental tests.

引用

页码：2185 / 2191

页数：7

共 33 条

[31] High-Efficiency High-Power-Density CLLC Resonant Converter With Low-Stray-Capacitance and Well-Heat-Dissipated Planar Transformer for EV On-Board Charger
Zhang, Zhengda
Liu, Chunhui
Wang, Mengzhi
Si, Yunpeng
Liu, Yifu
Lei, Qin
IEEE TRANSACTIONS ON POWER ELECTRONICS, 2020, 35 (10) : 10831 - 10851
[32] Two-Stage On-Board Charger Using Bridgeless PFC and Half-Bridge LLC Resonant Converter with Synchronous Rectification for 48V e-Mobility
Pande, Karan
Dixit, Abhinandan
Gangavarapu, Sivanagaraju
Rathore, Akshay K.
Singh, Rajeev K.
Mishra, Santanu K.
2020 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, 2020,
[33] High-dv/dt-Immune Parameter-Adaptive Synchronous Rectifier (SR) Driving Scheme in High-Frequency High-Power-Density Applications
Zhang, Zhengda
Liu, Chunhui
Si, Yunpeng
Liu, Yifu
Wang, Mengzhi
Lei, Qin
2021 IEEE FOURTH INTERNATIONAL CONFERENCE ON DC MICROGRIDS (ICDCM), 2021,

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