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公开(公告)号：US09893608B2
公开(公告)日：2018-02-13
申请号：US14913473
申请日：2014-08-12
Applicant: LG INNOTEK CO., LTD.
Inventor： Dong Gyun Kim , Dong Young Huh , Jae Sam Lee
IPC: G05F1/00 , G05F1/613 , G05F3/16 , G05F1/618 , H01F17/00 , H02M7/00 , H02M7/538 , H02M1/42 , H02M7/06 , H02M7/217 , H02M7/155 , H02M1/00
CPC classification number: H02M1/4208 , H02M1/4225 , H02M7/06 , H02M7/155 , H02M7/217 , H02M2001/009 , Y02B70/126
Abstract: According to one embodiment of the present invention, when a power supply device having first and second amplification units which share an energy storage element is used, it is possible to reduce voltage stress of a semiconductor device and to consistently maintain output voltage outputted to the first and second amplification units while individually adjusting the amplification rates of the first and second amplification units.
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公开(公告)号：US09899935B2
公开(公告)日：2018-02-20
申请号：US14910812
申请日：2014-08-07
Applicant: LG Innotek Co., Ltd.
Inventor： Jae Sam Lee , Dong Young Huh
CPC classification number: H02M7/06 , H02M1/4225 , H02M3/158 , H02M2001/0077 , H02M2001/009 , Y02B70/126
Abstract: According to one embodiment of the present invention, when a power supply device including first and second amplification units which share an energy storage element is used, it is possible to reduce voltage stress on a semiconductor device and to consistently maintain voltages output to the first and second amplification units by independently adjusting the amplification rates of the first and second amplification units.
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公开(公告)号：US20160344297A1
公开(公告)日：2016-11-24
申请号：US15159053
申请日：2016-05-19
Applicant: LG INNOTEK CO., LTD.
Inventor： Jae Sam Lee
CPC classification number: H02M3/33592 , H02M3/33584 , H02M2001/0009 , H02M2001/0058 , Y02B70/1475 , Y02B70/1491
Abstract: A bidirectional DC-DC converter is disclosed. According to the bidirectional DC-DC converter, switching loss is reduced by implementing zero voltage switching of switching devices in a boost mode of the bidirectional DC-DC converter. Accordingly, it is possible to realize the high efficiency of power conversion. Further, switching devices of the bidirectional DC-DC converter are controlled using simple logic devices, thereby controlling a plurality of directional DC-DC converters coupled in parallel to each other.
Abstract translation: 公开了一种双向DC-DC转换器。 根据双向DC-DC转换器，通过在双向DC-DC转换器的升压模式中实现开关器件的零电压切换，开关损耗减小。 因此，可以实现电力转换的高效率。 此外，使用简单的逻辑器件来控制双向DC-DC转换器的开关器件，从而控制彼此并联耦合的多个定向DC-DC转换器。
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4.发明申请公开(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。
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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
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.
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Patent Agency Ranking
公开(公告)号：US09490708B2
公开(公告)日：2016-11-08
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
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。
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公开(公告)号：US11949271B2
公开(公告)日：2024-04-02
申请号：US17916606
申请日：2021-04-06
Applicant: LG INNOTEK CO., LTD.
Inventor： Jae Sam Lee
IPC: H02J7/00 , G01R19/165 , H02M1/00 , H02M3/155
CPC classification number: H02J7/00712 , G01R19/16552 , H02M1/0025 , H02M3/155
Abstract: An embodiment of the present invention provides a load sharing control device included in each of multiple power supply devices connected to a load in parallel, the load sharing control device comprising: a first control unit for generating a first control signal which controls an output current of a power supply device, by using the output current of the power supply device and a current of a load share bus; and a second control unit for generating a second control signal which controls an output voltage of the power supply device, by using a target voltage of the power supply device, a feedback voltage received as feedback from the output voltage of the power supply device, and a control voltage according to the first control signal of the first control unit, wherein the first control unit generates the first control signal so that the output current is identical to the current of the load share bus, and limits the output current to a threshold current or less.
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公开(公告)号：US10020749B2
公开(公告)日：2018-07-10
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
CPC classification number: H02M3/33546 , H02M1/08 , H02M3/28 , H02M3/33584 , H02M2001/0054 , H02M2001/0058 , Y02B70/1433 , 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.
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公开(公告)号：US09748855B2
公开(公告)日：2017-08-29
申请号：US15159053
申请日：2016-05-19
Applicant: LG INNOTEK CO., LTD.
Inventor： Jae Sam Lee
CPC classification number: H02M3/33592 , H02M3/33584 , H02M2001/0009 , H02M2001/0058 , Y02B70/1475 , Y02B70/1491
Abstract: A bidirectional DC-DC converter is disclosed. According to the bidirectional DC-DC converter, switching loss is reduced by implementing zero voltage switching of switching devices in a boost mode of the bidirectional DC-DC converter. Accordingly, it is possible to realize the high efficiency of power conversion. Further, switching devices of the bidirectional DC-DC converter are controlled using simple logic devices, thereby controlling a plurality of directional DC-DC converters coupled in parallel to each other.
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公开(公告)号：US09684320B2
公开(公告)日：2017-06-20
申请号：US14686372
申请日：2015-04-14
Applicant: LG INNOTEK CO., LTD.
Inventor： Bum Su Shin , Jae Sam Lee
CPC classification number: G05F1/46 , H02M3/1584 , H02M2001/0009
Abstract: A DC/DC converter includes n converters connected in parallel to each other and configured to adjust a level of an input voltage according to a duty ratio of a first pulse signal applied to a first switch device to output an output voltage, wherein the n is an integer of 2 or more; and a control unit configured to compare an average of n sensing currents with the n sensing currents sensed from the converters, respectively, to adjust the duty ratio of the first pulse signal.
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