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11.发明授权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 - 升压调节器的高效率高功率密度电源架构公开(公告)号：US09595870B2
公开(公告)日：2017-03-14
申请号：US14150473
申请日：2014-01-08
Applicant: Futurewei Technologies, Inc.
Inventor： Hengchun Mao , Dianbo Fu , Bing Cai
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：US09712073B2
公开(公告)日：2017-07-18
申请号：US13955123
申请日：2013-07-31
Applicant: Futurewei Technologies, Inc.
Inventor： Pedro Angel Fernandez , Bing Cai , Yuyu Qiao
CPC classification number: H02M7/04 , H02J1/08 , H02M1/4266 , H02M2001/0067 , H02M2001/008 , Y10T307/406
Abstract: An apparatus comprising a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal, a first electronic switch configured to selectively route an alternating current (AC) signal to the first rectifier or the second rectifier, an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal, a second electronic switch configured to selectively route the DC signal from the first terminal or the second terminal to the inverter, and a third electronic switch configured to selectively route the second AC signal to the first rectifier or the second rectifier.
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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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Patent Agency Ranking
公开(公告)号：US10284097B2
公开(公告)日：2019-05-07
申请号：US16173904
申请日：2018-10-29
Applicant: Futurewei Technologies, Inc.
Inventor： Daoshen Chen , Heping Dai , Xujun Liu , Zhihua Liu , Liming Ye , Dianbo Fu , Ce Liu , Bing Cai
Abstract: A system comprises an input power stage coupled to a primary side of a transformer, an output power stage coupled to a secondary side of a transformer, a first common node capacitor and a common node resistor connected in series between a midpoint of the secondary side of the transformer and ground and a detector having an input connected to a common node of the first common node capacitor and the common node resistor, and an output connected to a control circuit, wherein the control circuit is configured to dynamically adjust a switching frequency of the system based upon an output of the detector.
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公开(公告)号：US09712063B2
公开(公告)日：2017-07-18
申请号：US13923112
申请日：2013-06-20
Applicant: FutureWei Technologies, Inc.
Inventor： Heping Dai , Daoshen Chen , Bing Cai
CPC classification number: H02M3/33507 , H02M3/156 , H02M2001/0022 , H02M2001/0025
Abstract: A method for improving a power converter's efficiency comprises detecting an input voltage of a power converter, determining an operation mode of the power converter based upon the input voltage of the power converter and generating a plurality of gate drive signals based upon a damped gain control, wherein the damped gain control is configured such that an output voltage of the power converter is in a range from a tightly regulated output voltage to an unregulated output voltage.
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16.发明授权Apparatus and efficiency point tracking method for high efficiency resonant converters 有权高效率谐振变换器的装置和效率点跟踪方法公开(公告)号：US09444346B2
公开(公告)日：2016-09-13
申请号：US14056532
申请日：2013-10-17
Applicant: FutureWei Technologies, Inc.
Inventor： Daoshen Chen , Heping Dai , Xujun Liu , Zhihua Liu , Liming Ye , Dianbo Fu , Ce Liu , Bing Cai
CPC classification number: H02M3/33507 , H02M1/14 , H02M3/156 , H02M3/22 , H02M3/325 , H02M3/33523 , H02M3/33569 , H02M3/33576 , H02M3/33592 , H02M3/337 , H02M3/3376 , H02M2001/0009 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
Abstract: A converter comprises an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches, a resonant tank coupled to the plurality of power switches, a transformer coupled to the resonant tank, an output stage coupled to the transformer, an efficiency point tracking indicator coupled to the converter, a detector coupled to the efficiency point tracking indicator and a control circuit configured to receive an efficiency point tracking signal from the detector and adjust a switching frequency of the power switches based upon the efficiency point tracking signal.
Abstract translation: A转换器包括耦合到电源的输入级，其中所述输入级包括多个功率开关，耦合到所述多个功率开关的谐振槽，耦合到所述谐振回路的变压器，耦合到所述变压器的输出级， 耦合到转换器的效率点跟踪指示器，耦合到效率点跟踪指示器的检测器和配置成从检测器接收效率点跟踪信号的控制电路，并且基于效率点跟踪信号调整功率开关的开关频率 。
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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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18.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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