公开(公告)号：US20190109542A1

公开(公告)日：2019-04-11

申请号：US16212822

申请日：2018-12-07

申请人： Huawei Technologies Co., Ltd.

发明人： Heqian YANG ,  Changsheng PEI ,  Yongtao LIANG

IPC分类号： H02M3/335 ,  H01F27/28 ,  H01F30/12 ,  H02M3/28 ,  H01F27/24

摘要： A magnetic integrated device is disclosed, the device includes: a first magnetic core base and a second magnetic core base that are parallel and a first magnetic core column, a second magnetic core column, and a third magnetic core column that are located between the first magnetic core base and the second magnetic core base; and a first winding, a second winding, and a third winding are wound on the first magnetic core column, the second magnetic core column, and the third magnetic core column respectively in a same manner to form a closed magnetic flux loop, where the first winding, the second winding, and the third winding are separately used for connecting to a branch of a three-phase parallel circuit, and in all branches of the three-phase parallel circuit, values of currents are the same, and a difference between each two current phases is 120 degrees.

公开(公告)号：US20220038025A1

公开(公告)日：2022-02-03

申请号：US17481076

申请日：2021-09-21

申请人： Huawei Technologies Co., Ltd.

发明人： Weiping LIU ,  Yongtao LIANG ,  Chen CHEN

IPC分类号： H02M7/219 ,  H02M7/5387

摘要： A converter and a power supply system are disclosed, and relate to the power electronics field, to resolve a problem that a sampling circuit in an OBC circuit is relatively complex. The converter includes an alternating current unit, a switching unit, a conversion unit, a direct current unit, and a controller. The alternating current unit includes a U line, a V line, a W line, and an N line. The N line is connected to a ground of the controller, so that the controller can be directly connected to the U line, the V line, and the W line, to collect a voltage of the U line, a voltage of the V line, and a voltage of the W line. This simplifies the sampling circuit.

公开(公告)号：US20210122255A1

公开(公告)日：2021-04-29

申请号：US17139613

申请日：2020-12-31

申请人： Huawei Technologies Co., Ltd.

发明人： Yongtao LIANG ,  Weiping LIU ,  Feng SU

IPC分类号： B60L53/22 ,  H02M1/42 ,  H02M3/335

摘要： A power conversion module, a vehicle-mounted charger, and an electric vehicle may be used in the field of new energy vehicles. The power conversion module includes a power factor correction PFC module and a first direct current-direct current DC-DC converter. A first primary circuit of the first DC-DC converter has a first bridge arm, a second bridge arm, a third bridge arm, and a fourth bridge arm. A first switch is disposed between the first bridge arm and an inductor at an interface of the PFC module, and a second switch is disposed between the third bridge arm and another interface of the PFC module. When the first switch and the second switch are turned on, a secondary circuit of the first DC-DC converter may implement a function of a primary circuit of a second DC-DC converter; the second bridge arm and the fourth bridge arm may implement a function of a secondary circuit of the second DC-DC converter; and the first bridge arm, the third bridge arm, the inductor of the PFC module, and a capacitor of the PFC module may form an inverter module, so as to implement an inverse discharging function.

公开(公告)号：US20150180350A1

公开(公告)日：2015-06-25

申请号：US14575917

申请日：2014-12-18

申请人： Huawei Technologies Co., Ltd.

发明人： Boning HUANG ,  Yongtao LIANG ,  Wenbin CHEN ,  Denghai PAN

IPC分类号： H02M3/335 ,  H02J9/06 ,  H02J7/00

CPC分类号： H02M3/33507 ,  H02J7/0068 ,  H02J9/06 ,  H02M3/33584 ,  H02M3/33592 ,  H02M3/3382 ,  H02M2001/0058 ,  H02M2007/4815 ,  Y02B70/1433 ,  Y02B70/1441 ,  Y02B70/1475 ,  Y02B70/1491 ,  Y10T307/625

摘要： The present invention provides a resonant bidirectional converter, an uninterruptible power supply apparatus, and a control method. The resonant bidirectional converter includes: a filter capacitor, three primary side bridge arms, a resonant cavity, three transformers, and three secondary side bridge arms, where two ends of each of the primary side bridge arms are separately connected to two ends of a bus capacitor, each of the primary side bridge arms includes two semiconductor switch that are serially connected in a same direction, and any connection point located between the two semiconductor switch of the primary side bridge arm that are serially connected in the same direction is a first connection point.

摘要翻译： 本发明提供一种谐振双向转换器，不间断电源装置和控制方法。 谐振双向转换器包括：滤波电容器，三个一次侧桥臂，谐振腔，三个变压器和三个次级侧桥臂，其中每个初级侧桥臂的两端分别连接到总线的两端 电容器，每个初级侧桥臂包括沿相同方向串联连接的两个半导体开关，并且位于初级侧桥臂的两个半导体开关之间的任一连接点是沿相同方向串联连接的第一连接 点。