公开(公告)号：US20150244284A1

公开(公告)日：2015-08-27

申请号：US14189606

申请日：2014-02-25

Applicant: FutureWei Technologies, Inc.

Inventor： Dianbo Fu

IPC: H02M7/44 ,  H02M1/12

CPC classification number: H02M7/537 ,  H02M1/126 ,  H02M2001/0058 ,  H02M2007/4811 ,  H02M2007/4815 ,  Y02B70/1491

Abstract: An inverter comprises a first switch coupled to an input of an output filter and a positive dc bus, a second switch coupled to the input of the output filter and a negative dc bus, a transformer coupled to a common node of the first switch and the second switch, a first freewheeling apparatus and a first soft switching switch connected in series, wherein the first soft switching switch is configured such that the first switch is of a first zero voltage transition during a turn-on process of the first switch and a second freewheeling apparatus and a second soft switching switch connected in series, wherein the second soft switching switch is configured such that the second switch is of a second zero voltage transition during a turn-on process of the second switch.

Abstract translation: 逆变器包括耦合到输出滤波器和正直流总线的输入的第一开关，耦合到输出滤波器的输入端的第二开关和负直流总线，耦合到第一开关的公共节点的变压器和 第二开关，第一续流装置和串联连接的第一软开关开关，其中第一软开关开关被配置为使得第一开关在第一开关的接通过程期间处于第一零电压转变，而第二开关 续流装置和第二软开关开关串联连接，其中所述第二软开关开关被配置为使得所述第二开关在所述第二开关的接通过程中为第二零电压转换。

公开(公告)号：US20150124487A1

公开(公告)日：2015-05-07

申请号：US14071360

申请日：2013-11-04

Applicant: FutureWei Technologies, Inc.

Inventor： Dianbo Fu ,  Heping Dai ,  Liming Ye ,  Daoshen Chen

IPC: H02M3/335

CPC classification number: H02M3/33507 ,  H02M3/33569 ,  H02M2001/0058 ,  H02M2007/4818 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1491

Abstract: An apparatus comprises a first series resonant inductor coupled to a switching network and a transformer, a first series resonant capacitor coupled to the switching network and the transformer, a first parallel inductor coupled to the switching network through the first series resonant inductor and the first series resonant capacitor, a resonant frequency adjusting device coupled to the switching network and the transformer and a switch connected in series with the resonant frequency adjusting device.

Abstract translation: 一种装置包括耦合到开关网络和变压器的第一串联谐振电感器，耦合到开关网络和变压器的第一串联谐振电容器，通过第一串联谐振电感器耦合到开关网络的第一并联电感器和第一系列 谐振电容器，耦合到开关网络和变压器的谐振频率调节装置以及与谐振频率调节装置串联连接的开关。

公开(公告)号：US20150103561A1

公开(公告)日：2015-04-16

申请号：US14052583

申请日：2013-10-11

Applicant: FutureWei Technologies, Inc.

Inventor： Heping Dai ,  Daoshen Chen ,  Dianbo Fu

IPC: H02M3/335

CPC classification number: H02M3/33546 ,  H02M1/08 ,  H02M3/285 ,  H02M3/3353 ,  H02M3/33553 ,  H02M3/33576 ,  H02M2001/0009 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491 ,  Y02P80/112

Abstract: A converter comprises an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches, a first resonant tank coupled to the input stage, wherein the first resonant tank is of a first Q value, a second resonant tank coupled to the input stage, wherein the second resonant tank is of a second Q value, a transformer coupled to the input stage through the first resonant tank and the second resonant tank and an output stage coupled to the transformer.

Abstract translation: A转换器包括耦合到电源的输入级，其中输入级包括多个功率开关，耦合到输入级的第一谐振回路，其中第一谐振回路具有第一Q值，第二谐振回路耦合 到所述输入级，其中所述第二谐振回路具有第二Q值，通过所述第一谐振回路耦合到所述输入级的变压器和所述第二谐振回路以及耦合到所述变压器的输出级。

公开(公告)号：US20140319919A1

公开(公告)日：2014-10-30

申请号：US13874303

申请日：2013-04-30

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Dianbo Fu

IPC: H02M7/539

CPC classification number: H02M7/539 ,  H02M7/487 ,  H02M7/538 ,  H02M2001/0058 ,  Y02B70/1491 ,  Y10T307/50 ,  Y10T307/707 ,  Y10T307/747

Abstract: An inverter comprises a first switch coupled to an input of an output filter and a positive dc bus, a second switch coupled to the input of the output filter and a negative dc bus, a first freewheeling apparatus coupled to the first switch, the second switch and ground, a first soft switching network coupled to the first freewheeling apparatus and the first switch, wherein the first soft switching network is configured such that the first switch is of a first zero voltage transition during a turn-on process of the first switch and a second soft switching network coupled to the first freewheeling apparatus and the second switch, wherein the second soft switching network is configured such that the second switch is of a second zero voltage transition during a turn-on process of the second switch.

Abstract translation: 逆变器包括耦合到输出滤波器和正直流总线的输入的第一开关，耦合到输出滤波器的输入端的第二开关和负直流总线，耦合到第一开关的第一续流设备，第二开关 接地，耦合到第一续流设备和第一开关的第一软开关网络，其中第一软开关网络被配置为使得第一开关在第一开关的接通过程期间具有第一零电压转换;以及 耦合到第一续流设备和第二开关的第二软交换网络，其中第二软交换网络被配置为使得第二开关在第二开关的接通过程期间处于第二零电压转换。

公开(公告)号：US20140254208A1

公开(公告)日：2014-09-11

申请号：US13786266

申请日：2013-03-05

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Heping Dai ,  Hengchun Mao ,  Dianbo Fu

IPC: H02M3/335

CPC classification number: H02M3/335 ,  H02M3/33569 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

Abstract: A resonant tank comprises a series resonant inductor coupled to a switching network and a transformer, a series resonant capacitor coupled to the switching network and the transformer, a first parallel inductor implemented as a magnetizing inductance of the transformer, a second parallel inductor implement as a separate inductor, wherein a first inductance of the first parallel inductor is greater than a second inductance of the second parallel inductor and a switch connected in series with the second parallel inductor.

Abstract translation: 谐振箱包括耦合到开关网络和变压器的串联谐振电感器，耦合到开关网络和变压器的串联谐振电容器，被实现为变压器的磁化电感的第一并联电感器，作为变压器的第二并联电感器器件 其中所述第一并联电感器的第一电感大于所述第二并联电感器的第二电感，以及与所述第二并联电感器串联连接的开关。