公开(公告)号：US09325238B2

公开(公告)日：2016-04-26

申请号：US14334717

申请日：2014-07-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pinhua Zhu ,  Hengbiao Wang ,  Wenzong Cao

IPC: H02M3/335 ,  H02M3/156 ,  H02M3/158 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M3/1582 ,  H02M3/1584 ,  H02M2001/007

Abstract: A voltage adjustment method, and a voltage pre-regulator power supply circuit and system, that implements highly-efficient output of a power supply in a quasi straight-through state and increases voltage output precision of a circuit. The voltage adjustment method includes receiving a to-be-adjusted voltage through a positive wire input end and a negative wire input end; changing, in a control mode in which a connection time is fixed and a disconnection time is adjusted, a duty cycle for the to-be-adjusted voltage to obtain a primary adjusted voltage; and changing, in a control mode in which a disconnection time is fixed and a connection time is adjusted, a duty cycle for the primary adjusted voltage to obtain an output voltage. The present disclosure is applied to a non-isolated direct-current quasi straight-through pre-regulator power supply.

Abstract translation: 电压调节方法和电压预调节器电源电路和系统，其实现准直通状态的电源的高效输出并且提高电路的电压输出精度。 电压调整方法包括通过正极线路输入端和负极线路输入端接收待调整电压; 在其中连接时间固定并且断开时间被调整的控制模式中，改变待调整电压的占空比以获得初级调节电压; 并且在其中断开时间固定并且连接时间被调整的控制模式中改变一次调节电压的占空比以获得输出电压。 本公开适用于非隔离直流准直通预调节器电源。

公开(公告)号：US20140327417A1

公开(公告)日：2014-11-06

申请号：US14334717

申请日：2014-07-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Pinhua Zhu ,  Hengbiao Wang ,  Wenzong Cao

IPC: H02M3/156

CPC classification number: H02M3/156 ,  H02M3/1582 ,  H02M3/1584 ,  H02M2001/007

Abstract: A voltage adjustment method, and a voltage pre-regulator power supply circuit and system, that implements highly-efficient output of a power supply in a quasi straight-through state and increases voltage output precision of a circuit. The voltage adjustment method includes receiving a to-be-adjusted voltage through a positive wire input end and a negative wire input end; changing, in a control mode in which a connection time is fixed and a disconnection time is adjusted, a duty cycle for the to-be-adjusted voltage to obtain a primary adjusted voltage; and changing, in a control mode in which a disconnection time is fixed and a connection time is adjusted, a duty cycle for the primary adjusted voltage to obtain an output voltage. The present disclosure is applied to a non-isolated direct-current quasi straight-through pre-regulator power supply.

Abstract translation: 电压调节方法和电压预调节器电源电路和系统，其实现准直通状态的电源的高效输出并且提高电路的电压输出精度。 电压调整方法包括通过正极线路输入端和负极线路输入端接收待调整电压; 在其中连接时间固定并且断开时间被调整的控制模式中，改变待调整电压的占空比以获得初级调节电压; 并且在其中断开时间固定并且连接时间被调整的控制模式中改变一次调节电压的占空比以获得输出电压。 本公开适用于非隔离直流准直通预调节器电源。

公开(公告)号：US09575530B2

公开(公告)日：2017-02-21

申请号：US14585617

申请日：2014-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenzong Cao ,  Zhe Li ,  Pinhua Zhu

IPC: G06F1/00 ,  G06F1/26

CPC classification number: G06F1/263

Abstract: A board includes a functional module, and further includes n switch modules, where first ends of the n switch modules are connected to the functional module, and second ends of the n switch modules are connected to n main power interface units respectively, where n is an integer greater than or equal to 2; and a power supply selecting module connected to control ends of the n switch modules, where the power supply selecting module is configured to detect residual power of the n main power interface units, select, from main power interface units with residual power greater than or equal to rated power of the board, a main power interface unit with lowest residual power as a power supply interface unit, and control a switch module connected to the power supply interface unit to be switched on.

Abstract translation: 主板包括功能模块，并且还包括n个开关模块，其中n个开关模块的第一端连接到功能模块，并且n个开关模块的第二端分别连接到n个主电源接口单元，其中n为 大于或等于2的整数; 以及电源选择模块，其连接到所述n个开关模块的端部，其中所述电源选择模块被配置为检测所述n个主电力接口单元的剩余电力，从具有大于或等于的剩余功率的主电力接口单元 给板的额定功率，作为电源接口单元的具有最低剩余功率的主电源接口单元，以及控制连接到电源接口单元的开关模块以被接通。

公开(公告)号：US20150177807A1

公开(公告)日：2015-06-25

申请号：US14585617

申请日：2014-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenzong Cao ,  Zhe Li ,  Pinhua Zhu

IPC: G06F1/26

CPC classification number: G06F1/263

Abstract: A board includes a functional module, and further includes n switch modules, where first ends of the n switch modules are connected to the functional module, and second ends of the n switch modules are connected to n main power interface units respectively, where n is an integer greater than or equal to 2; and a power supply selecting module connected to control ends of the n switch modules, where the power supply selecting module is configured to detect residual power of the n main power interface units, select, from main power interface units with residual power greater than or equal to rated power of the board, a main power interface unit with lowest residual power as a power supply interface unit, and control a switch module connected to the power supply interface unit to be switched on.

Abstract translation: 主板包括功能模块，并且还包括n个开关模块，其中n个开关模块的第一端连接到功能模块，并且n个开关模块的第二端分别连接到n个主电源接口单元，其中n为 大于或等于2的整数; 以及电源选择模块，其连接到所述n个开关模块的端部，其中所述电源选择模块被配置为检测所述n个主电力接口单元的剩余电力，从具有大于或等于的剩余功率的主电力接口单元 给板的额定功率，作为电源接口单元的具有最低剩余功率的主电源接口单元，以及控制连接到电源接口单元的开关模块以被接通。