Byd Company Limited

Astec International Limited

Zte Corporation

Honor Device Co., Ltd.

Huawei Technologies Co., Limited

PengFei Li

HaiJun Zhang

XiaoLin He

Liang Meng

XunJiang Dai

Ziwei Zeng

Chaorui Wu

Renwei Guo

Hongxing Wang

Wenquan Tang

Jihan Fan

Daolin Li

Yujie Zhang

Shuai Su

Kun Qiu

Yujia Zhou

A vehicle power supply device is provided. The vehicle power supply device includes: a fixed base; a scissor-fork lifting mechanism, where the scissor-fork lifting mechanism is configured to be driven by a drive device to ascend or descend; and the scissor-fork lifting mechanism includes at least one scissor-fork swing rod set, the scissor-fork swing rod set includes at least one pair of swing rods, each pair of swing rods includes two swing rods that are cross-arranged and are hinged with each other, and two swing rods in a pair of swing rods that is closest to the fixed base are separately mounted on the fixed base; and a power supply head, where the power supply head is mounted on two swing rods in a pair of swing rods that is farthest from the fixed base, and the power supply head is driven by the scissor-fork lifting mechanism to ascend or descend.

Vehicle power supply device

The laminated structure includes a protective layer, a linear polarizing layer, and a quarter-wave plate that are laminated in sequence. The protective layer is used for polarizing light to form linearly polarized light. An angle between an absorption axis of the protective layer and an absorption axis of the linear polarizing layer is zero degrees. An angle between the absorption axis of the linear polarizing layer and an absorption axis of the quarter-wave plate is 45 degrees. There is no difference between a direction of the absorption axis of the protective layer and a direction of the absorption axis of the linear polarizing layer.

Laminated structure, display panel, and electronic device

A vehicle power supply device is provided. The vehicle power supply device includes: a fixed base; a scissor-fork lifting mechanism, where the scissor-fork lifting mechanism is mounted on the fixed base; a power supply head, where the power supply head is mounted on the scissor-fork lifting mechanism and is driven by the scissor-fork lifting mechanism to ascend or descend; and a drive device, where the drive device includes a drive unit and a transmission unit configured to convert rotational movement into linear movement. The drive unit and the transmission unit are stacked along a lifting direction of the scissor-fork lifting mechanism. The drive unit is connected with the scissor-fork lifting mechanism by the transmission unit to drive the scissor-fork lifting mechanism to ascend or descend.

A switched mode power supply (SMPS) includes a filter (), a power factor correction (PFC) circuit (), and a control circuit () configured to determine various electrical parameters of the SMPS. In some embodiments, the control circuit () is configured to determine a power line frequency and an AC input voltage based on an AC line voltage and an AC neural voltage. In other embodiments, the control circuit () is configured to determine an AC input current based on a reactive current flowing through the filter () and a PFC AC current. In further embodiments, the control circuit () is configured to report a value of an electrical parameter if value is determined to be accurate. Other example switch mode power supplies, control circuits and methods are also disclosed.

Power measurements in switched mode power supplies

A switched mode power supply (SMPS) includes a filter, a power factor correction (PFC) circuit, and a control circuit configured to determine various electrical parameters of the SMPS. In some embodiments, the control circuit is configured to determine a power line frequency and an AC input voltage based on an AC line voltage and an AC neural voltage. In other embodiments, the control circuit is configured to determine an AC input current based on a reactive current flowing through the filter and a PFC AC current. In further embodiments, the control circuit is configured to report a value of an electrical parameter if value is determined to be accurate. Other example switch mode power supplies, control circuits and methods are also disclosed.

Front air grille

A terminal positioning system and terminal positioning method are provided. The system includes: a first distance acquiring module acquiring a first distance between a first base station and a terminal located in an overlapped coverage area of the first base station and a second base station according to first time offset information of the terminal; a second distance acquiring module acquiring a second distance between the second base station and the terminal according to second time offset information; an angle acquiring module acquiring a first signal arrival angle of the terminal relative to the first base station and a second signal arrival angle of the terminal relative to the second base station; a first positioning module obtaining an initial location of the terminal according to the first and second signal arrival angles, and a second positioning module determining the accurate location of the terminal.

System and method for terminal location

Growing community of inventors

Shenzhen, China

PengFei Li