公开(公告)号：US20220344485A1

公开(公告)日：2022-10-27

申请号：US17727221

申请日：2022-04-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qilong Bao ,  Qimeng Jiang ,  Gaofei Tang ,  Hanxing Wang ,  Boning Huang ,  Zhaozheng Hou

IPC: H01L29/45 ,  H03K17/041 ,  H01L29/778 ,  H01L29/66 ,  H01L29/40 ,  H01L29/417

Abstract: A gallium nitride (GaN) device, where a drain of the GaN device includes a p-type (P-GaN) layer and a drain metal. The drain metal includes a plurality of first structural intervals and a plurality of second structural intervals. The plurality of first structural intervals and the plurality of second structural intervals are alternately distributed in the gate width direction. In this way, the drain metal implements local injection of holes for the device in the first structural intervals, and forms ohmic contact in the second structural intervals, implementing current conduction from a drain to a source of the device.

公开(公告)号：US10432018B2

公开(公告)日：2019-10-01

申请号：US15090724

申请日：2016-04-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhen Qin ,  Fanglin Li ,  Boning Huang

IPC: H02J1/00 ,  H02J3/36 ,  H02J9/06 ,  H02M5/42 ,  H02M3/335 ,  H02M3/158 ,  H02J9/08 ,  H02J7/00

Abstract: A power supply bus circuit includes a high-voltage power supply circuit, the high-voltage power supply circuit includes at least two first alternating current/direct current converters and further includes at least two high-voltage direct current power supply buses, and the first alternating current/direct current converter connects to mains, adjusts the connected mains into a high-voltage direct current, and outputs the high-voltage direct current to the high-voltage direct current power supply bus that is electrically connected to the first alternating current/direct current converter, where the high-voltage power supply circuit further includes at least one first direct current/direct current converter, where the first direct current/direct current converter performs voltage conversion on the high-voltage direct current between two high-voltage direct current power supply buses connected to the first direct current/direct current converter.

公开(公告)号：US09570973B2

公开(公告)日：2017-02-14

申请号：US14017442

申请日：2013-09-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenbin Chen ,  Shengyong Dai ,  Boning Huang

IPC: H02M1/42 ,  H02M7/04 ,  H02M1/14 ,  H02M3/158

CPC classification number: H02M1/4208 ,  H02M1/14 ,  H02M1/4225 ,  H02M7/04 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

Abstract: A bridgeless power factor correction (PFC) circuit, which includes an alternating current power supply module, a power module, and a control module; the power module includes one or more interleaved PFC circuits, each interleaved PFC circuit includes one inductor, one pair of first switching components, and at least one capacitor, a first end of the inductor is connected to the alternating current power supply module, and a second end of the inductor is connected to one end of each capacitor through one of the first switching components and is also connected to the other end of each capacitor through the other one of the first switching components; and the control module samples a current of each first switching component in the power module, and turns off a first switching component through which a negative current flows.

Abstract translation: 一种无桥功率因数校正（PFC）电路，其包括交流电源模块，功率模块和控制模块; 功率模块包括一个或多个交错PFC电路，每个交错PFC电路包括一个电感器，一对第一开关组件和至少一个电容器，电感器的第一端连接到交流电源模块，并且 电感器的第二端通过第一开关部件中的一个连接到每个电容器的一端，并且还通过第一开关部件中的另一个连接到每个电容器的另一端; 并且控制模块对功率模块中的每个第一开关部件的电流进行采样，并且关断负电流流过的第一开关部件。

公开(公告)号：US20160104592A1

公开(公告)日：2016-04-14

申请号：US14956881

申请日：2015-12-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Boning Huang ,  Jing Yang ,  Peng Zhang

IPC: H01H47/22

CPC classification number: H01H47/226 ,  H01H47/00 ,  H01H51/22

Abstract: A contactor drive circuit includes a power supply, a processor, a line connection and control unit, a first drive end, and a second drive end; when a contactor is connected between the first drive end and the second drive end, the processor determines, according to a value of a current flowing through the contactor, a type of the contactor connected between the first drive end and the second drive end; and according to a result of the determining, the processor controls the line connection and control unit to enable the first drive end to be electrically connected to an anode of the power supply, and controls the second drive end to be electrically connected to a cathode of the power supply.

Abstract translation: 接触器驱动电路包括电源，处理器，线路连接和控制单元，第一驱动端和第二驱动端; 当接触器连接在第一驱动端和第二驱动端之间时，处理器根据流过接触器的电流的值确定连接在第一驱动端和第二驱动端之间的接触器的类型; 并且根据确定的结果，处理器控制线路连接和控制单元以使得第一驱动端能够电连接到电源的阳极，并且控制第二驱动端电连接到电源的阴极 电源。

公开(公告)号：US20140002033A1

公开(公告)日：2014-01-02

申请号：US14017442

申请日：2013-09-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenbin Chen ,  Shengyong Dai ,  Boning Huang

IPC: H02M1/42

CPC classification number: H02M1/4208 ,  H02M1/14 ,  H02M1/4225 ,  H02M7/04 ,  H02M2003/1586 ,  Y02B70/126 ,  Y02P80/112

Abstract: A bridgeless power factor correction (PFC) circuit, which includes an alternating current power supply module, a power module, and a control module; the power module includes one or more interleaved PFC circuits, each interleaved PFC circuit includes one inductor, one pair of first switching components, and at least one capacitor, a first end of the inductor is connected to the alternating current power supply module, and a second end of the inductor is connected to one end of each capacitor through one of the first switching components and is also connected to the other end of each capacitor through the other one of the first switching components; and the control module samples a current of each first switching component in the power module, and turns off a first switching component through which a negative current flows.

Abstract translation: 一种无桥功率因数校正（PFC）电路，其包括交流电源模块，功率模块和控制模块; 功率模块包括一个或多个交错PFC电路，每个交错PFC电路包括一个电感器，一对第一开关组件和至少一个电容器，电感器的第一端连接到交流电源模块，并且 电感器的第二端通过第一开关部件中的一个连接到每个电容器的一端，并且还通过第一开关部件中的另一个连接到每个电容器的另一端; 并且控制模块对功率模块中的每个第一开关部件的电流进行采样，并且关断负电流流过的第一开关部件。