公开(公告)号：US20150357921A1

公开(公告)日：2015-12-10

申请号：US14437416

申请日：2013-10-17

Applicant: EATON CORPORATION

Inventor： Kunfeng Li ,  Huali Zhang ,  Denis Deng ,  Jack Gu ,  Yuefeng Yang

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M1/14 ,  H02M3/285 ,  H02M2001/0003 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: The present invention discloses an interleaved LLC convertor with current sharing. The interleaved LLC convertor with current sharing comprises: an interleaved LLC circuit, consisting of an even number of LLC circuits connected in parallel; and a plurality of windings with the same quantity as that of the LLC circuits, wherein all first polarization terminals from each of LLC circuits at its DC output side together constitute a first output terminal; all first terminals from each of the windings together constitute a second output terminal; a first half of the plurality of windings surround a magnetic core in a first direction, and a second half of the plurality of windings surround the magnetic core in a second direction; each of the plurality of windings has the same inductance, and the first half of the plurality of windings are inversely coupled with the second half of the plurality of windings; and the second polarization terminal of each LLC circuit at its DC output side connects to a second terminal of one of the windings.

Abstract translation: 本发明公开了一种具有电流共享的交错LLC转换器。 具有电流共享的交错LLC转换器包括：交错LLC电路，由并联连接的偶数LLC电路组成; 以及与LLC电路具有相同数量的多个绕组，其中来自其DC输出侧的每个LLC电路的所有第一极化端子一起构成第一输出端子; 来自每个绕组的所有第一端子一起构成第二输出端子; 所述多个绕组的前半部围绕第一方向的磁芯，并且所述多个绕组的第二半部沿第二方向围绕所述磁芯; 所述多个绕组中的每一个具有相同的电感，并且所述多个绕组的前半部与所述多个绕组的所述第二半部反向耦合; 并且每个LLC电路在其DC输出侧的第二极化端子连接到一个绕组的第二端子。

公开(公告)号：US09735685B2

公开(公告)日：2017-08-15

申请号：US14437416

申请日：2013-10-17

Applicant: EATON CORPORATION

Inventor： Kunfeng Li ,  Huali Zhang ,  Denis Deng ,  Jack Gu ,  Yuefeng Yang

IPC: H02M1/14 ,  H02M3/335 ,  H02M3/28 ,  H02M1/00

CPC classification number: H02M3/33507 ,  H02M1/14 ,  H02M3/285 ,  H02M2001/0003 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: The present invention discloses an interleaved LLC convertor with current sharing. The interleaved LLC convertor with current sharing comprises: an interleaved LLC circuit, consisting of an even number of LLC circuits connected in parallel; and a plurality of windings with the same quantity as that of the LLC circuits, wherein all first polarization terminals from each of LLC circuits at its DC output side together constitute a first output terminal; all first terminals from each of the windings together constitute a second output terminal; a first half of the plurality of windings surround a magnetic core in a first direction, and a second half of the plurality of windings surround the magnetic core in a second direction; each of the plurality of windings has the same inductance, and the first half of the plurality of windings are inversely coupled with the second half of the plurality of windings; and the second polarization terminal of each LLC circuit at its DC output side connects to a second terminal of one of the windings.

公开(公告)号：US08995156B2

公开(公告)日：2015-03-31

申请号：US13710830

申请日：2012-12-11

Applicant: Eaton Corporation

Inventor： Jack Gu ,  Yuefeng Yang ,  Yuehui Li

IPC: H02M3/24 ,  H02M3/156 ,  H02M3/337 ,  H02M1/00 ,  H02M7/48

CPC classification number: H02M3/156 ,  H02M3/3376 ,  H02M2001/007 ,  H02M2007/4815 ,  Y02B70/1425 ,  Y02B70/1433 ,  Y02B70/1441

Abstract: A direct current to direct current (DC/DC) converter includes a resonant converter stage, a buck stage, and a processor apparatus. The resonant converter stage includes a bridge circuit. The buck stage is configured to output an output voltage and an output current, is electrically connected in series with the resonant converter stage, and includes a buck switch. The processor apparatus is configured to sense the output voltage and the output current, and, based on the sensed output voltage and the sensed output current, to perform one of: (a) fixing a switching frequency of the bridge circuit to a predetermined maximum switching frequency and controlling the output voltage by controlling a duty cycle of the buck switch, and (b) fixing the duty cycle of the buck switch to a predetermined duty cycle and controlling the output voltage by controlling the switching frequency of the bridge circuit.

Abstract translation: 对直流（DC / DC）转换器的直流电流包括谐振转换器级，降压级和处理器装置。 谐振转换器级包括桥式电路。 降压级被配置为输出输出电压和输出电流，与谐振转换器级串联电连接，并且包括降压开关。 处理器装置被配置为感测输出电压和输出电流，并且基于所感测的输出电压和感测的输出电流来执行下列之一：（a）将桥接电路的开关频率固定到预定的最大开关 通过控制降压开关的占空比来控制输出电压，以及（b）将降压开关的占空比固定为预定的占空比，并通过控制桥式电路的开关频率来控制输出电压。