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公开(公告)号：US20200321879A1
公开(公告)日：2020-10-08
申请号：US16911023
申请日：2020-06-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yanzhong ZHANG , Zheng MA , Lei SHI , Dianbo FU
Abstract: A resonant converter includes: an input power supply, a bleeder circuit, a multi-level switching network, a resonant unit, and a transformer. The input power supply is connected to the bleeder circuit, the multi-level switching network is connected to the bleeder circuit, a clamping middle point of the multi-level switching network is connected to a middle point of the bleeder circuit; one end of the resonant unit is connected to the output terminal of the multi-level switching network, and the other end of the resonant unit is connected to one end of a primary side of the transformer; and the multi-level switching network instructs the output terminal of the multi-level switching network to output a square wave voltage with different amplitudes, to serve as an input voltage of the resonant unit, where the input voltage is used to adjust a gain of the resonant converter.
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Patent Agency Ranking
公开(公告)号：US20200328674A1
公开(公告)日：2020-10-15
申请号：US16913219
申请日：2020-06-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bo YU , Jinxiang ZHAN , Peiyong LI , Dianbo FU
Abstract: A boost power conversion circuit includes an inductor, a first switch module, a second switch module, a first unilateral conduction component, a second unilateral conduction component, a flying capacitor, an upper bus capacitor, a lower bus capacitor, and a third unilateral conduction component. The power supply, the inductor, the first switch module, and the second switch module are connected in series to form a loop. The first unilateral conduction component, the second unilateral conduction component, the upper bus capacitor and the lower bus capacitor are connected in series. The flying capacitor is electrically connected between a reverse cut-off end of the first unilateral conduction component and a forward conduction end of the second unilateral conduction component. The third unilateral conduction component is configured to clamp a voltage stress of the second switch module to a lower-bus voltage.
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公开(公告)号：US20200321878A1
公开(公告)日：2020-10-08
申请号：US16904735
申请日：2020-06-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yanzhong ZHANG , Zheng MA , Boning HUANG , Grover Victor TORRICO-BASCOPÉ , Dianbo FU
Abstract: A resonant converter circuit comprises a multi-level inverter circuit placed before a resonant unit, and the multi-level inverter circuit can reduce a voltage to be input to the resonant unit. The reduced input voltage of the resonant unit results in a drop in an output voltage of the entire resonant converter circuit. In this process, the final output voltage is adjusted by adjusting the input voltage of the resonant unit, with no need to substantially adjust a switching frequency of the resonant converter circuit.
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公开(公告)号：US20200177100A1
公开(公告)日：2020-06-04
申请号：US16785225
申请日：2020-02-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhaohui WANG , Lei SHI , Dianbo FU
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：US20160141091A1
公开(公告)日：2016-05-19
申请号：US14942340
申请日：2015-11-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H02M7/003 , H01F3/10 , H01F27/306 , H01F2003/106 , H02M7/49
Abstract: An inductor, includes: a central post including a plurality of magnets, where each magnet includes an inductor and a primary magnetic core. The inductor at least partially surrounds the primary magnetic core and includes an auxiliary magnetic core and a winding. The winding 117 is embedded inside the auxiliary magnetic core and encircles the primary magnetic core 114. An upper jaw is connected to an upper end of the central post and a lower jaw is connected to a lower end of the central post 110. The upper jaw, lower jaw 130, and the primary magnetic core jointly form a magnetic path.
Abstract translation: 电感器包括：包括多个磁体的中心柱，其中每个磁体包括电感器和主磁芯。 电感器至少部分地围绕初级磁芯并且包括辅助磁芯和绕组。 绕组117嵌入在辅助磁芯内部并且环绕主磁芯114.上钳口连接到中心柱的上端，下钳口连接到中心柱110的下端。上钳口 下颌130和主磁芯共同形成磁路。
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公开(公告)号：US20150085541A1
公开(公告)日：2015-03-26
申请号：US14555808
申请日：2014-11-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanshen HU , Grover TORRICO , Dianbo FU , Yunfeng LIU
IPC: H02M7/5395
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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