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公开(公告)号：US20210143751A1
公开(公告)日：2021-05-13
申请号：US17157155
申请日：2021-01-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dianbo Fu , Zhaohui Wang , Lei Shi
IPC: H02M7/487
Abstract: An inverter includes an upper unit comprises a first switch, a second switch and a third switch, wherein during a first half of a cycle of the inverter, the second switch is turned on before and turned off after the third switch, a lower unit comprising a fourth switch, a fifth switch and a sixth switch, wherein during a second half of the cycle of the inverter, the fifth switch is turned on before and turned off after the sixth switch, a flying capacitor connected between the upper unit and the lower unit, and a filter connected to a common node of the upper unit and the lower unit.
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公开(公告)号：US20210091679A1
公开(公告)日：2021-03-25
申请号：US16926516
申请日：2020-07-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yushan Li , Heping Dai , Dianbo Fu
IPC: H02M7/217
Abstract: A system includes a current-mode switcher configured to provide a direct current (DC) voltage for a noise sensitive load, and a linear amplifier connected to an output of the current-mode switcher, the linear amplifier configured to draw a reduced supply voltage through at least one power conversion device that is coupled between a power source and the linear amplifier.
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公开(公告)号：US20180219492A1
公开(公告)日：2018-08-02
申请号：US15938193
申请日：2018-03-28
Applicant: Huawei Technologies Co., Ltd.
IPC: H02M7/5387
CPC classification number: H02M7/5387 , H02M1/32 , H02M1/36 , H02M5/45 , H02M7/483 , H02M7/487 , H02M7/537 , Y02E10/56
Abstract: A multi-level inverter includes a direct current input, a first bidirectional switch, a second bidirectional switch, a third capacitor, and an inverter. The direct current input includes a first capacitor and a second capacitor connected in series between positive and negative terminals of the direct current input power supply. The inverter includes a first switching tube, a second switching tube, a third switching tube, and a fourth switching tube that are connected in series co-directionally between the positive and negative terminals of the direct current input power supply. One terminal of the first bidirectional switch is connected to a connection point between the third switching tube and the fourth switching tube.
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公开(公告)号：US20170302195A1
公开(公告)日：2017-10-19
申请号：US15641059
申请日：2017-07-03
Applicant: Huawei Technologies Co., Ltd.
IPC: H02M7/483
Abstract: A circuit of a multi-level topology includes five terminals and six switching elements. A first end of a first switching element (Q1) is connected to a first terminal (A1), and a second end of the first switching element is connected to a fifth terminal (A5); a first end of the second switching element (Q2) is connected to a second terminal (A2), and a second end of a second switching element is connected to a first end of a first branch; a second end of a third switching element (Q3) is connected to a third terminal (A3), and a first end of a third switching element is connected to the first end of the first branch; a second end of a sixth switching element (Q6) is connected to a fourth terminal (A4).
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公开(公告)号：US09601262B2
公开(公告)日：2017-03-21
申请号：US14584940
申请日：2014-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fei Ye , Yunfeng Liu , Dianbo Fu
CPC classification number: H01F38/023 , H01F2038/026 , H02M7/487 , H02M7/49
Abstract: A coupled inductor and a power converter includes at least two input ends, an output end, a common magnetic core, at least two first windings, and at least two second windings. The common magnetic core includes at least two magnetic cylinders, and the number of the at least two magnetic cylinders corresponds to the number of the at least two input ends; and one first winding and one second winding are twined in parallel on each cylinder among the at least two magnetic cylinders, and the first windings and the second windings on the at least two magnetic cylinders are mutually connected between the at least two input ends and the output end to form mutually coupled inductances and when currents that flow into the at least two input ends are equal, make the first winding and the second winding on each cylinder generate opposite magnetic potentials.
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Patent Agency Ranking
公开(公告)号：US09385632B2
公开(公告)日：2016-07-05
申请号：US14555808
申请日：2014-11-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanshen Hu , Grover Victor Torrico-Bascopé , Dianbo Fu , Yunfeng Liu
IPC: H02M7/5387 , H02M7/5395 , H02M7/487 , H02M7/49 , H02M1/12 , H02M1/00
CPC classification number: H02M7/5395 , H02M1/12 , H02M7/487 , H02M7/49 , H02M2001/0064 , H02M2001/007
Abstract: A multi-level inverter includes two N-level inverter units with pulse width modulation waves staggered by a phase of 180 degrees, and N is an integer greater than or equal to 3; a direct current power source module, where an output end thereof is connected to input ends of the two N-level inverter units; a transformer, where the transformer includes a primary side and a secondary side, an inductor of the primary side and an inductor of the secondary side are coupled, and one end of the inductor of the primary side and one end of the inductor of the secondary side are connected to output ends of the two N-level inverter units respectively. The two N-level inverter units are reversely coupled, and the other end of the inductor of the primary side and the other end of the inductor of the secondary side are connected.
Abstract translation: 多电平逆变器包括两个N级反相器单元，其中脉冲宽度调制波以180度相位交错，N为大于或等于3的整数; 直流电源模块，其输出端连接到两个N电平逆变器单元的输入端; 变压器，其中变压器包括初级侧和次级侧，初级侧的电感器和次级侧的电感器被耦合，并且次级侧的电感器的一端和电感器的一端的一端 侧分别连接到两个N电平逆变器单元的输出端。 两个N级逆变器单元反向耦合，并且次级侧的电感器的初级侧的另一端和另一端连接。
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公开(公告)号：US11201565B2
公开(公告)日：2021-12-14
申请号：US16785225
申请日：2020-02-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhaohui Wang , Lei Shi , Dianbo Fu
IPC: H02M7/487 , H02M7/483 , H02M7/515 , H02M7/5387 , H02M3/07 , H02J3/38 , H02M1/08 , H02J9/06 , H02M1/00
Abstract: A conversion circuit is disclosed. In the conversion circuit, an input terminal includes a positive direct current bus terminal and a negative direct current bus terminal, and an output terminal includes an alternating current output end; a first switch unit includes a flying clamping capacitor and a first converter bridge arm; a second switch unit includes a second converter bridge arm; an output end of the first switch unit and the second switch unit is connected to the alternating current output end; and the first switch unit and the second switch unit are connected to a control module, and switch under control of the control module, so that the conversion circuit converts between a direct current voltage and an alternating current voltage, to output a required alternating current voltage.
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公开(公告)号：US20200007038A1
公开(公告)日：2020-01-02
申请号：US16566102
申请日：2019-09-10
Applicant: Huawei Technologies Co., Ltd.
Abstract: A converter comprises a first switching element and a second switching element coupled between an input power source and an output capacitor and an inductor coupled to a common node of the first switching element and the second switching element, wherein the second switching element comprises a first diode and a first switch connected in series between a first terminal and a second terminal of the second switching element and a second diode connected between the first terminal and the second terminal of the second switching element.
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公开(公告)号：US20150170822A1
公开(公告)日：2015-06-18
申请号：US14584940
申请日：2014-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fei Ye , Yunfeng Liu , Dianbo Fu
IPC: H01F27/28 , H02M1/15 , H02M7/5387 , H01F27/24 , H01F27/29
CPC classification number: H01F38/023 , H01F2038/026 , H02M7/487 , H02M7/49
Abstract: A coupled inductor and a power converter includes at least two input ends, an output end, a common magnetic core, at least two first windings, and at least two second windings. The common magnetic core includes at least two magnetic cylinders, and the number of the at least two magnetic cylinders corresponds to the number of the at least two input ends; and one first winding and one second winding are twined in parallel on each cylinder among the at least two magnetic cylinders, and the first windings and the second windings on the at least two magnetic cylinders are mutually connected between the at least two input ends and the output end to form mutually coupled inductances and when currents that flow into the at least two input ends are equal, make the first winding and the second winding on each cylinder generate opposite magnetic potentials.
Abstract translation: 耦合电感器和功率转换器包括至少两个输入端，输出端，公共磁芯，至少两个第一绕组和至少两个第二绕组。 普通磁芯包括至少两个磁性圆筒，并且至少两个磁性圆柱体的数量对应于至少两个输入端的数量; 并且一个第一绕组和一个第二绕组在所述至少两个磁性气缸中的每个气缸上并联缠绕，并且所述至少两个磁性气缸上的所述第一绕组和所述第二绕组彼此连接在所述至少两个输入端和 输出端以形成相互耦合的电感，并且当流入至少两个输入端的电流相等时，使得每个气缸上的第一绕组和第二绕组产生相反的磁势。
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公开(公告)号：US11165338B2
公开(公告)日：2021-11-02
申请号：US16899456
申请日：2020-06-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Heping Dai , Dianbo Fu , Huibin Zhu
Abstract: A bidirectional power conversion system includes three power conversion ports. A first power conversion port includes a power factor correction device and a primary power conversion network. A second power conversion port includes a plurality of switches and a plurality of diodes, wherein an output voltage of the second power conversion port is regulated through adjusting an output voltage of the power factor correction device as well as through adjusting an operating parameter of the primary power conversion network. A third power conversion port includes a first switch network and a power regulator connected in cascade, wherein the first power conversion port, the second power conversion port and the third power conversion port are magnetically coupled to each other through a transformer.
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