公开(公告)号：US20180361871A1

公开(公告)日：2018-12-20

申请号：US16115892

申请日：2018-08-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie TANG ,  Lizhou YANG ,  Jie YI

IPC: B60L11/18

CPC classification number: B60L11/1864 ,  B60L15/007 ,  B60L50/50 ,  B60L50/51 ,  B60L58/12 ,  B60L58/18 ,  B60L58/19 ,  B60L58/21 ,  B60L2240/429 ,  B60L2240/547 ,  H02M7/483 ,  H02M7/49 ,  H02M2007/4835 ,  Y02T10/7005 ,  Y02T10/7275

Abstract: A motor driving apparatus incudes a driving circuit outputting a three-phase alternating current and a main controller, wherein the driving circuit comprises a U-phase electric driving circuit, a V-phase electric driving circuit, and a W-phase electric driving circuit, each of the electric driving circuits comprises n storage batteries and n corresponding electric driving, and wherein input ends of the n electric driving units are connected to the corresponding storage batteries and output ends of the n electric driving units are cascaded to output one phase of the three-phase alternating current. The main controller is connected to signal ends of the n electric driving units and determines an output voltage adjustment coefficient of each of the n electric driving units in the electric driving circuit based on voltages of the n storage batteries in the electric driving circuit, and outputs the output voltage adjustment coefficient to the corresponding electric driving unit.

公开(公告)号：US20210408938A1

公开(公告)日：2021-12-30

申请号：US17471701

申请日：2021-09-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ningbo FENG ,  Jie YI ,  Hang WANG ,  Qingyu WANG

IPC: H02M7/537 ,  H01P5/12

Abstract: In an embodiment, an off-grid phase splitter includes: a first input port and a second input port that are separately connected to a power supply; a first output port and a second output port that provide a second voltage, and the second output port and a third output port provide a third voltage; a first capacitor connected between the first output port and the second output port; a second capacitor connected between the second output port and the third output port; a first switch circuit and a second switch circuit connected in series to form a first node between the first input port and the second input port, where the first switch circuit and the second switch circuit are unidirectionally switched on in opposite directions,; and an inductor connected between the first node and the second output port.