公开(公告)号：US20140063859A1

公开(公告)日：2014-03-06

申请号：US14019122

申请日：2013-09-05

Applicant: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY ,  LG INNOTEK CO., LTD.

Inventor： Chunfeng JIN ,  Sung Jun PARK ,  Woo Seok CHOI

IPC: H02M3/335

CPC classification number: H02M3/33576 ,  H02M3/33592 ,  H02M2001/0048 ,  Y02B70/1433 ,  Y02B70/1475 ,  Y02B70/1491

Abstract: A power supply device is provided. The power supply device includes: a transformer configured to include first and second windings; a half bridge circuit configured to be connected to first and second nodes and both ends of the first wiring; and a full bridge circuit configured to be connected to third and fourth nodes and both ends of the second winding. Since the leakage inductance of the transformer and the bridge capacitor of the half bridge circuit form a direct current (DC) resonant tank, switching loss that may occur during the turning on or off of switches can be reduced.

Abstract translation: 提供电源装置。 电源装置包括：被配置为包括第一和第二绕组的变压器; 半桥电路，被配置为连接到第一和第二节点以及第一布线的两端; 以及全桥电路，其被配置为连接到第三和第四节点以及第二绕组的两端。 由于变压器的漏电感和半桥电路的桥式电容器形成直流（DC）谐振回路，所以可以减少在开关导通或关断期间可能发生的开关损耗。

公开(公告)号：US20150171757A1

公开(公告)日：2015-06-18

申请号：US14570379

申请日：2014-12-15

Applicant: LG INNOTEK CO., LTD.

Inventor： Chunfeng JIN ,  Dong Young Huh ,  Jae Sam Lee ,  Hyun Woo Lee ,  Jung Hwan Choi

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/285 ,  H02M3/33546 ,  H02M3/33553 ,  H02M2001/342 ,  Y02B70/1491

Abstract: Disclosed are a multiple-output DC/DC converter and a power supply having the same. The multiple-output DC/DC converter includes a converter including a transformer and a first surge absorbing module, wherein the transformer includes a first switch provided to a primary side and outputs a first voltage to a secondary side, and the first surge absorbing module is connected to the primary side of the transformer and absorbs a surge voltage formed at the first switch by a leakage inductance of the transformer; and a first energy converting module to receive output energy supplied from the first surge absorbing module and output a second voltage.

Abstract translation: 公开了一种多输出DC / DC转换器和具有其的电源。 多输出DC / DC转换器包括一个包括变压器和第一浪涌吸收模块的转换器，其中变压器包括提供给初级侧的第一开关，并向第二侧输出第一电压，第一浪涌吸收模块是 连接到变压器的初级侧，并通过变压器的漏电感吸收在第一开关处形成的浪涌电压; 以及第一能量转换模块，用于接收从第一浪涌吸收模块供应的输出能量并输出第二电压。

公开(公告)号：US20170317601A1

公开(公告)日：2017-11-02

申请号：US15526223

申请日：2015-08-24

Applicant: LG Innotek Co., Ltd.

Inventor： Chunfeng JIN ,  Joo Suk KANG ,  Jae Sam Lee ,  Jung Hwan Choi ,  Dong Young Huh

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/00

CPC classification number: H02M3/33546 ,  H02M1/08 ,  H02M3/28 ,  H02M3/33584 ,  H02M2001/0054 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: The present invention relates to a power converter including a transformer; a current doubler including a switch element and connected to a secondary side of the transformer to double a current of the transformer according to an operation of the switch element; and a voltage resonator connected to the switch elements, wherein the voltage resonator includes a switch element and a capacitor which are connected to each other in series.