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公开(公告)号：US20140198536A1
公开(公告)日：2014-07-17
申请号：US13739920
申请日：2013-01-11
Applicant: FUTUREWEI TECHNOLOGIES, INC.
Inventor： Dianbo Fu , Wensong Yu , Hengchun Mao , Heping Dai
IPC: H02M3/335
CPC classification number: H02M3/33546 , H02M1/14 , H02M3/33576 , H02M3/3376 , H02M7/487 , H02M2007/4815 , Y02B70/1433 , Y02B70/1441
Abstract: 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.
Abstract translation: 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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公开(公告)号：US10411591B2
公开(公告)日：2019-09-10
申请号：US15451254
申请日：2017-03-06
Applicant: Futurewei Technologies, Inc.
Inventor： Dianbo Fu , Hengchun Mao , Bing Cai
Abstract: An embodiment holdup time circuit of a bridgeless power factor correction circuit comprises a charge device connected between an output terminal of a bridgeless power factor correction circuit and an energy storage apparatus, a discharge device connected between the energy storage apparatus and an input of the bridgeless power factor correction circuit, the energy storage apparatus and the bridgeless power factor correction circuit comprising a first boost converter, a second boost converter, a first switch and a second switch, wherein the first switch is connected between the first boost converter and ground and the second switch is connected between the second boost converter and ground.
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公开(公告)号：US09436192B2
公开(公告)日：2016-09-06
申请号：US13957080
申请日：2013-08-01
Applicant: FutureWei Technologies, Inc.
Inventor： Heping Dai , Hengchun Mao , Zhihua Liu , Zhaozheng Hou
CPC classification number: G05F1/46 , H02M3/1588 , Y02B70/1425 , Y02B70/1466
Abstract: A converter comprises a high side switch, a low side switch connected in series with the high switch, a gate drive circuit comprising a first drive port coupled to a gate of the high side switch, a second drive port coupled to a gate of the low side switch, an SRE input port and a PWM input port coupled to a PWM controller, wherein the PWM controller is selected from the group consisting of a first PWM controller having two complementary PWM outputs, a second PWM controller having a tri-state PWM output and a third PWM controller having a single PWM output.
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公开(公告)号：US09190911B2
公开(公告)日：2015-11-17
申请号：US13786266
申请日：2013-03-05
Applicant: FutureWei Technologies, Inc.
Inventor： Heping Dai , Hengchun Mao , Dianbo Fu
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。
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公开(公告)号：US09178438B2
公开(公告)日：2015-11-03
申请号：US13857834
申请日：2013-04-05
Applicant: FutureWei Technologies, Inc.
Inventor： Dianbo Fu , Hengchun Mao , Heping Dai
CPC classification number: H02M3/33576 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A converter comprises a bridge and a resonant tank coupled between the bridge and an isolation transformer. The converter is configured such that the converter operates at a first constant-gain resonant frequency during a normal operation condition wherein a voltage gain of the converter is essentially insensitive to an output load change and the converter operates at a minimum-gain damping frequency during an abnormal operation condition wherein a voltage gain of the converter is approximately equal to zero.
Abstract translation: A转换器包括桥和耦合在桥与隔离变压器之间的谐振槽。 转换器被配置为使得转换器在正常操作状态期间以第一恒定增益谐振频率工作，其中转换器的电压增益对输出负载变化基本上不敏感，并且转换器在期间在最小增益阻尼频率下工作 异常操作条件，其中转换器的电压增益近似等于零。
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Patent Agency Ranking
公开(公告)号：US20150263626A1
公开(公告)日：2015-09-17
申请号：US14728590
申请日：2015-06-02
Applicant: Futurewei Technologies, Inc.
Inventor： Hengchun Mao , Dianbo Fu , Bing Cai
IPC: H02M3/158 , H01L25/065 , H01L25/00 , H01L23/00 , H01L21/48 , H01L23/495 , H01L25/16
CPC classification number: H02M3/158 , H01L21/4828 , H01L21/4842 , H01L23/49562 , H01L23/49575 , H01L23/49589 , H01L24/81 , H01L25/0655 , H01L25/0657 , H01L25/16 , H01L25/50 , H01L2225/06513 , H01L2225/06517 , H01L2924/1205 , H01L2924/1206 , H01L2924/1207 , H01L2924/13091 , H01L2924/14252 , H01L2924/1426 , H02M3/00 , H02M3/1588 , Y02B70/1466 , Y10T29/4913
Abstract: An embodiment power converter package comprises a semiconductor die, an output inductor, a plurality of input capacitors and output capacitors. The semiconductor die, the output inductor and the plurality of capacitors are mounted on a lead frame and connected one to another through various pads on the lead frame. The semiconductor die comprises a high side switch, a low side switch and a driver. The power converter package is electrically coupled to an external pulse width modulation controller through a variety of input and output pads.
Abstract translation: 实施例的功率转换器封装包括半导体管芯，输出电感器，多个输入电容器和输出电容器。 半导体管芯，输出电感器和多个电容器安装在引线框架上，并通过引线框架上的各种焊盘彼此连接。 半导体管芯包括高侧开关，低侧开关和驱动器。 功率转换器封装通过各种输入和输出焊盘电耦合到外部脉宽调制控制器。
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17.发明申请High Efficiency High Power Density Power Architecture Based on Buck-Boost Regulators with a Pass-Through Band 有权基于具有通过频带的降压 - 升压型稳压器的高效率高功率密度电源架构公开(公告)号：US20140117962A1
公开(公告)日：2014-05-01
申请号：US14150473
申请日：2014-01-08
Applicant: Futurewei Technologies, Inc.
Inventor： Hengchun Mao , Dianbo Fu , Bing Cai
IPC: H02M3/158
CPC classification number: H02M3/1582 , H02J1/102
Abstract: A power system comprising a non-isolated voltage regulator configured to couple to an input voltage and produce an output voltage, wherein the non-isolated voltage regulator is in a power distribution system and configured to boost the input voltage when the input voltage is less than a minimum output voltage, to reduce the input voltage when the input voltage is greater than a maximum output voltage, and to pass-through the input voltage when the input voltage is greater than or equal to the minimum output voltage and less than or equal to the maximum output voltage.
Abstract translation: 一种电力系统，包括被配置为耦合到输入电压并产生输出电压的非隔离电压调节器，其中所述非隔离电压调节器在配电系统中并且被配置为当所述输入电压小于 最小输出电压，以在输入电压大于最大输出电压时降低输入电压，并且当输入电压大于或等于最小输出电压并且小于或等于 最大输出电压。
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公开(公告)号：US20200007037A1
公开(公告)日：2020-01-02
申请号：US16565302
申请日：2019-09-09
Applicant: Futurewei Technologies, Inc.
Inventor： Hengchun Mao , Yan-Fei Liu , Renhua Wu
Abstract: A power regulator includes an input capacitor connected between a first voltage bus and an intermediate point, an output capacitor connected between a second voltage bus and the intermediate point, a plurality of switches and an inductor connected between the input capacitor and the output capacitor, wherein a source of one switch of the plurality of switches is connected to the intermediate point and a protection device connected between the intermediate point and a third voltage bus.
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公开(公告)号：US20170033701A1
公开(公告)日：2017-02-02
申请号：US15289345
申请日：2016-10-10
Applicant: Futurewei Technologies, Inc.
Inventor： Dianbo Fu , Wensong Yu , Hengchun Mao , Heping Dai
CPC classification number: H02M3/33546 , H02M1/14 , H02M3/33576 , H02M3/3376 , H02M7/487 , H02M2007/4815 , Y02B70/1433 , Y02B70/1441
Abstract: A multilevel LLC resonant converter comprises a first capacitor and a second capacitor connected in series providing a mid-voltage point of an input dc power source, a resonant tank connected in series with a primary side of a transformer, a first transistor and a second transistor connected in series, wherein a common node of the first transistor and the second transistor is connected to the mid-voltage point through a first isolation switch and a third transistor and a fourth transistor connected in series, wherein a common node of the third transistor and the fourth transistor is connected to the mid-voltage point through a second isolation switch.
Abstract translation: 多级LLC谐振转换器包括串联连接的第一电容器和第二电容器，其提供输入直流电源的中间电压点，与变压器的初级侧串联连接的谐振箱，第一晶体管和第二晶体管 串联连接，其中第一晶体管和第二晶体管的公共节点通过第一隔离开关和串联连接的第三晶体管和第四晶体管连接到中压点，其中第三晶体管的公共节点和 第四晶体管通过第二隔离开关连接到中压点。
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公开(公告)号：US09467057B2
公开(公告)日：2016-10-11
申请号：US14724506
申请日：2015-05-28
Applicant: FutureWei Technologies, Inc.
Inventor： Dianbo Fu , Wensong Yu , Hengchun Mao , Heping Dai
CPC classification number: H02M3/33546 , H02M1/14 , H02M3/33576 , H02M3/3376 , H02M7/487 , H02M2007/4815 , Y02B70/1433 , Y02B70/1441
Abstract: 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.
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