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公开(公告)号：US09876435B2
公开(公告)日：2018-01-23
申请号：US15297818
申请日：2016-10-19
发明人： Daoshen Chen , Heping Dai , Xujun Liu , Liming Ye , Dianbo Fu
CPC分类号： H02M3/33546 , H02M1/08 , H02M1/088 , H02M1/14 , H02M1/36 , H02M3/3353 , H02M3/33553 , H02M3/33576 , H02M3/33592 , H02M3/3385 , H02M7/4807 , H02M2001/0006 , H02M2001/0058 , H02M2007/4818 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491 , Y02P80/112
摘要： A method comprises providing a resonant converter comprising a switching network comprising a first high-side switch, a second high-side switch, a first low-side switch and a second low-side switch, a resonant tank coupled between the switching network and a transformer and a rectifier coupled to a secondary side of the transformer, coupling a driver to the switching network and the rectifier, wherein the driver includes a first winding coupled to the rectifier, a second winding coupled to the first high-side switch and a third winding coupled to the second high-side switch, detecting a signal indicating a soft switching process of the driver and adjusting a resonant frequency of the driver until the resonant frequency of the driver approximately matches a switch frequency of the resonant converter.
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公开(公告)号：US20170133947A1
公开(公告)日：2017-05-11
申请号：US14933723
申请日：2015-11-05
发明人： Dianbo Fu , Yunfeng Liu
IPC分类号： H02M7/537
摘要： A system comprises a first T-type inverter connected to a dc power source, a second T-type inverter connected to the dc power source, wherein the second T-type inverter is configured to operate with a first phase shift from the first T-type inverter, a third T-type inverter connected to the dc power source, wherein the third T-type inverter is configured to operate with a second phase shift from the second T-type inverter, a coupled inductor having a first input, a second input and a third input connected to the first T-type inverter, the second T-type inverter and the third T-type inverter respectively and an output filter coupled to the output of the coupled inductor.
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公开(公告)号：US09595862B1
公开(公告)日：2017-03-14
申请号：US14949568
申请日：2015-11-23
发明人： Dianbo Fu , Yunfeng Liu
摘要： A system comprises a first T-type inverter and a second T-type inverter connected to a dc power source and a first winding of a transformer, wherein the second T-type inverter is configured to operate with a first phase shift from the first T-type inverter, a third T-type inverter and a fourth T-type inverter connected to the dc power source and a second winding of the transformer, wherein the fourth T-type inverter is configured to operate with a second phase shift from the third T-type inverter and a fifth T-type inverter and a sixth T-type inverter connected to the dc power source and a third winding of the transformer, wherein the sixth T-type inverter is configured to operate with a third phase shift from the fifth T-type inverter.
摘要翻译： 一种系统包括连接到直流电源和变压器的第一绕组的第一T型逆变器和第二T型逆变器，其中所述第二T型逆变器被配置为以第一T相逆变器 型逆变器，第三T型逆变器和连接到直流电源的第四T型逆变器和变压器的第二绕组，其中第四T型逆变器被配置为以第三相位偏移 T型逆变器和连接到直流电源的第五T型逆变器和第六T型逆变器以及变压器的第三绕组，其中第六T型逆变器被配置为以从第三T型逆变器 第五台T型逆变器。
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公开(公告)号：US20170054298A1
公开(公告)日：2017-02-23
申请号：US15222170
申请日：2016-07-28
摘要： An inverter comprises a first boost apparatus having an input coupled to a positive dc bus, a second boost apparatus having an input coupled to a negative dc bus, a first switch coupled to an input of an L-C filter and the first boost apparatus, a second switch coupled to the input of the L-C filter and the second boost apparatus, a third switch coupled between the positive dc bus and the first switch, wherein a common node of the first switch and the third switch is directly connected to an output of the first boost apparatus, a fourth switch coupled between the negative dc bus and the second switch, wherein a common node of the fourth switch and the second switch is directly connected to an output of the second boost apparatus and an isolation switch coupled between the input of the L-C filter and ground.
摘要翻译： 逆变器包括具有耦合到正直流总线的输入的第一升压装置，具有耦合到负DC总线的输入的第二升压装置，耦合到LC滤波器的输入端的第一开关和第一升压装置，第二升压装置 耦合到LC滤波器和第二升压装置的输入的开关，耦合在正直流总线和第一开关之间的第三开关，其中第一开关和第三开关的公共节点直接连接到第一开关 升压装置，耦合在所述负DC总线和所述第二开关之间的第四开关，其中所述第四开关和所述第二开关的公共节点直接连接到所述第二升压装置的输出端，以及耦合在所述第二开关的输入端之间的隔离开关 LC滤波器和接地。
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公开(公告)号：US09515562B2
公开(公告)日：2016-12-06
申请号：US13786317
申请日：2013-03-05
发明人： Heping Dai , Dianbo Fu
CPC分类号： H02M3/3353 , H02M3/33592 , H02M2001/0058 , Y02B70/1433 , Y02B70/1475 , Y02B70/1491
摘要： A resonant tank comprises a resonant inductor coupled to a switching network and a transformer, a resonant capacitor coupled to the switching network and the transformer, a first parallel inductor implemented as a magnetizing inductance and 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.
摘要翻译： 谐振箱包括耦合到开关网络和变压器的谐振电感器，耦合到开关网络和变压器的谐振电容器，实现为磁化电感的第一并联电感器和作为单独电感器的第二并联电感器器件，其中a 第一并联电感器的第一电感大于第二并联电感器的第二电感。
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公开(公告)号：US09484821B2
公开(公告)日：2016-11-01
申请号：US14071360
申请日：2013-11-04
发明人： Dianbo Fu , Heping Dai , Liming Ye , Daoshen Chen
CPC分类号： H02M3/33507 , H02M3/33569 , H02M2001/0058 , H02M2007/4818 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US09461554B2
公开(公告)日：2016-10-04
申请号：US14502196
申请日：2014-09-30
发明人： Dianbo Fu , Liming Ye , Heping Dai , Daoshen Chen
CPC分类号： H02M3/33584 , H02M3/1582 , H02M2001/0058 , H02M2001/007 , Y02B70/1425 , Y02B70/1433 , Y02B70/1491
摘要： A converter comprises a non-isolated stage coupled to an input dc power source, wherein the non-isolated stage is configured to operate at a buck converter mode in response to a first input voltage and operate at a boost converter mode in response to a second input voltage, a resonant stage coupled between the non-isolated stage and a load, wherein the resonant stage is configured to operate at a resonant mode and a capacitor coupled between the non-isolated stage and the resonant stage.
摘要翻译： A转换器包括耦合到输入直流电源的非隔离级，其中所述非隔离级被配置为响应于第一输入电压在降压转换器模式下操作并响应于第二输入电压在升压转换器模式下操作 输入电压，耦合在所述非隔离级与负载之间的谐振级，其中所述谐振级被配置为在谐振模式下工作，以及耦合在所述非隔离级与所述谐振级之间的电容器。
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68.发明授权Soft switching inverter with auxiliary switch facilitating zero voltage switching 有权具有辅助开关的软开关逆变器，便于零电压切换公开(公告)号：US09362846B2
公开(公告)日：2016-06-07
申请号：US14189606
申请日：2014-02-25
发明人： Dianbo Fu
CPC分类号： H02M7/537 , H02M1/126 , H02M2001/0058 , H02M2007/4811 , H02M2007/4815 , Y02B70/1491
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20160141960A1
公开(公告)日：2016-05-19
申请号：US14548106
申请日：2014-11-19
发明人： Jinbo Huang , Xujun Liu , Dianbo Fu , Liming Ye , Heping Dai , Daoshen Chen
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/158 , H02M3/1582 , H02M2001/0009 , H02M2001/0058 , Y02B70/1425 , Y02B70/1433 , Y02B70/1491
摘要： A converter comprises a switch network coupled to a power source, wherein the switch network comprises a plurality of power switches, a magnetic device coupled to the switch network, a detector coupled to the magnetic device through a magnetic coupling and a control circuit configured to receive a zero voltage switching signal from the detector and adjust gate drive signals of the power switches based upon the zero voltage switching signal.
摘要翻译： A转换器包括耦合到电源的开关网络，其中开关网络包括多个电源开关，耦合到开关网络的磁性装置，通过磁耦合耦合到磁性装置的检测器和被配置为接收 来自检测器的零电压切换信号，并且基于零电压切换信号调节功率开关的栅极驱动信号。
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公开(公告)号：US20150263635A1
公开(公告)日：2015-09-17
申请号：US14724506
申请日：2015-05-28
发明人： Dianbo Fu , Wensong Yu , Hengchun Mao , Heping Dai
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M1/14 , H02M3/33576 , H02M3/3376 , H02M7/487 , H02M2007/4815 , Y02B70/1433 , Y02B70/1441
摘要： A multilevel LLC resonant converter comprises a resonant tank connected in series with a primary side of a transformer, a first switch and a second switch connected in series, wherein a common node of the first switch and the second switch is coupled to a mid-voltage point through a first isolation switch and the resonant bank and a third switch and a fourth switch connected in series, wherein a common node of the third switch and the fourth switch is coupled to the resonant tank.
摘要翻译： 多级LLC谐振转换器包括与变压器的初级侧串联连接的谐振箱，串联连接的第一开关和第二开关，其中第一开关和第二开关的公共节点耦合到中间电压 通过第一隔离开关和谐振库以及串联连接的第三开关和第四开关，其中第三开关和第四开关的公共节点耦合到谐振槽。
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