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公开(公告)号：US09350164B2
公开(公告)日：2016-05-24
申请号：US14145067
申请日：2013-12-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuewen Peng , Wenzong Cao
Abstract: A surge protection circuit, related to the power electronics field. The surge protection circuit includes: an input configured to provide direct current power supply, an output configured to connect to a next circuit, and a cutoff circuit connected to the output; the surge protection circuit further includes: a discharge circuit connected between the input and the cutoff circuit; the discharge circuit includes: a diode and a field-effect transistor; the cathode of the diode is connected to the positive end of the input, and the anode of the diode is connected to the source of the field-effect transistor; the gate of the field-effect transistor is connected to the positive end of the input, the drain of the field-effect transistor is connected to the negative end of the input, and the direction of the parasitic diode of the field-effect transistor is opposite to the direction of the diode.
Abstract translation: 电涌保护电路，涉及电力电子领域。 浪涌保护电路包括：被配置为提供直流电源的输入，被配置为连接到下一个电路的输出和连接到输出的断开电路; 浪涌保护电路还包括：放电电路，连接在输入和断开电路之间; 放电电路包括：二极管和场效应晶体管; 二极管的阴极连接到输入的正极，二极管的阳极连接到场效应晶体管的源极; 场效应晶体管的栅极连接到输入的正极，场效应晶体管的漏极连接到输入的负端，场效应晶体管的寄生二极管的方向为 与二极管方向相反。
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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
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。
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Patent Agency Ranking
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。
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4.发明授权Voltage adjustment method, and voltage pre-regulator power supply circuit and system 有权电压调节方式和电压预调节电源电路及系统公开(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
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。
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5.发明申请Voltage Adjustment Method, and Voltage Pre-Regulator Power Supply Circuit and System 有权电压调节方法和电压预调节电源电路和系统公开(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。
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公开(公告)号：US20140111895A1
公开(公告)日：2014-04-24
申请号：US14145067
申请日：2013-12-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xuewen PENG , Wenzong Cao
IPC: H02H9/02
Abstract: A surge protection circuit, related to the power electronics field. The surge protection circuit includes: an input configured to provide direct current power supply, an output configured to connect to a next circuit, and a cutoff circuit connected to the output; the surge protection circuit further includes: a discharge circuit connected between the input and the cutoff circuit; the discharge circuit includes: a diode and a field-effect transistor; the cathode of the diode is connected to the positive end of the input, and the anode of the diode is connected to the source of the field-effect transistor; the gate of the field-effect transistor is connected to the positive end of the input, the drain of the field-effect transistor is connected to the negative end of the input, and the direction of the parasitic diode of the field-effect transistor is opposite to the direction of the diode.
Abstract translation: 电涌保护电路，涉及电力电子领域。 浪涌保护电路包括：被配置为提供直流电源的输入，被配置为连接到下一个电路的输出和连接到输出的断开电路; 所述浪涌保护电路还包括：放电电路，连接在所述输入和所述截止电路之间; 放电电路包括：二极管和场效应晶体管; 二极管的阴极连接到输入的正极，二极管的阳极连接到场效应晶体管的源极; 场效应晶体管的栅极连接到输入的正极，场效应晶体管的漏极连接到输入的负端，场效应晶体管的寄生二极管的方向为 与二极管方向相反。
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公开(公告)号：US20130051101A1
公开(公告)日：2013-02-28
申请号：US13661749
申请日：2012-10-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wenzong Cao , Wenbin Chen
IPC: H02M7/06
CPC classification number: H02J9/061 , G05F1/56 , H02J7/345 , H02M2001/0096
Abstract: A hold-up time circuit is provided, including: an energy storage capacitor, a step-down circuit and a step-up circuit. A first and a second input end of the step-down circuit are connected to two electrodes of an input power supply. A first output end and a second output end of the step-down circuit are connected to two electrodes of the energy storage capacitor. When the input power supply is normal, the step-down circuit is configured to perform reduction processing on an input voltage of the input power supply, and the energy storage capacitor is charged by an output of the step-down circuit. A first and a second input end of the step-up circuit are connected to the two electrodes of the energy storage capacitor. When the input power supply is power-off, the step-up circuit is configured to perform boost processing on an energy storage voltage of the energy storage capacitor.
Abstract translation: 提供了一种保持时间电路，包括：储能电容器，降压电路和升压电路。 降压电路的第一和第二输入端连接到输入电源的两个电极。 降压电路的第一输出端和第二输出端连接到储能电容器的两个电极。 当输入电源正常时，降压电路被配置为对输入电源的输入电压进行缩小处理，并且通过降压电路的输出对能量存储电容器进行充电。 升压电路的第一和第二输入端连接到储能电容器的两个电极。 当输入电源断电时，升压电路被配置为对储能电容器的储能电压进行升压处理。
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