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    POWER SOURCE MANAGEMENT METHOD AND POWER SOURCE
    1.
    发明公开
    POWER SOURCE MANAGEMENT METHOD AND POWER SOURCE 审中-公开
    STROMQUELLENVERWALTUNGSVERFAHREN UND STROMQUELLE

    公开(公告)号：EP3136578A4

    公开(公告)日：2017-07-05

    申请号：EP15810506

    申请日：2015-01-06

    申请人： HUAWEI TECH CO LTD

    发明人： HOU ZHAOZHENG ,  FAN XIAODONG ,  CHENG JIEBIN ,  LIU ZHIHUA ,  ZHANG XUEZHEN

    IPC分类号： H02M3/335 ,  H02M1/00 ,  H02M3/337

    CPC分类号： H02M3/33546 ,  H02M1/08 ,  H02M3/33584 ,  H02M3/33592 ,  H02M3/3376 ,  H02M2001/0009 ,  H02M2001/0016 ,  H02M2001/0025 ,  Y02B70/1475

    摘要： A power source management method and a power source are provided. The method includes: comparing a feedforward control signal with a feedback control signal by using a logic control circuit, outputting the signals after the comparison, and performing matching, to obtain control signals of switching transistors of a full-bridge topology circuit (S301); and adjusting the control signals of the switching transistors of the full-bridge topology circuit by using the logic control circuit, so that operating duty cycles of two bridge arms on a primary side match, are symmetric within one switch period of the logic control circuit, or match for a long time, to prevent transformer biasing (S302). The power source management method and the power source can achieve good feedforward performance, suppress input disturbance, and additionally prevent transformer biasing, which ensures that the power source works normally.

    摘要翻译： 提供电源管理方法和电源。 该方法包括：利用逻辑控制电路将前馈控制信号与反馈控制信号进行比较，输出比较后的信号并进行匹配，得到全桥拓扑电路的开关管的控制信号（S301）。 利用逻辑控制电路调整全桥拓扑电路的开关晶体管的控制信号，使得一次侧的两个桥臂的工作占空比匹配，在逻辑控制电路的一个开关周期内对称， 或匹配很长时间，以防止变压器偏置（S302）。 电源管理方法和电源可以实现良好的前馈性能，抑制输入干扰，另外防止变压器偏置，保证电源正常工作。

    DIRECT CURRENT CONVERTER POWER SUPPLY APPARATUS AND METHOD FOR IMPROVING DIRECT CURRENT CONVERTER POWER SUPPLY APPARATUS
    5.
    发明公开
    DIRECT CURRENT CONVERTER POWER SUPPLY APPARATUS AND METHOD FOR IMPROVING DIRECT CURRENT CONVERTER POWER SUPPLY APPARATUS 有权
    DC转换器电源的装置和方法改善的DC转换器功率器件

    公开(公告)号：EP2200164A4

    公开(公告)日：2010-09-22

    申请号：EP08757799

    申请日：2008-06-20

    申请人： HUAWEI TECH CO LTD

    发明人： LIU ZHIHUA

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33592 ,  Y02B70/1475

    摘要： A Direct Current to Direct Current (DC-DC) power supply apparatus includes: a transformer; a transformer primary circuit; a transformer secondary circuit, which includes a rectifier circuit capable of transformation and configured to convert a square wave voltage output by the transformer into a DC output voltage; and a control unit, which controls the transformer secondary circuit to stabilize the DC output voltage into a required value according to the DC output voltage. A method for improving a DC-DC power supply apparatus includes: coupling a rectifier circuit to a secondary winding of a transformer to convert the square-wave voltage output by the transformer into a DC output voltage; and monitoring the DC output voltage, and stabilizing the DC output voltage into a required value according to the DC output voltage.

    摘要翻译： 直流到直流（DC-DC）电源装置包括：变压器; 一变压器初级电路; 一个变压器的次级电路，其中包括能够转化的且经配置以由变压器成DC输出电压的方波输出电压转换的整流电路; 以及控制单元，其控制变压器的次级电路的输出DC电压稳定在所要求的值gemäß到DC输出电压。 一种提高的DC-DC电源装置方法，包括：耦合的整流器电路的二次绕组的变压器的由变压器的方波输出电压转换成DC输出电压; 和监视DC输出电压，和稳定的DC输出电压变换为所需的值gemäß到DC输出电压。

    DEVICE, METHOD OF VOLTAGE CONVERSION AND POWER SUPPLY SYSTEM
    6.
    发明公开
    DEVICE, METHOD OF VOLTAGE CONVERSION AND POWER SUPPLY SYSTEM 审中-公开
    DEVICE AND METHOD FOR电源转换和电源供应系统

    公开(公告)号：EP2393194A4

    公开(公告)日：2013-12-25

    申请号：EP10790865

    申请日：2010-10-26

    申请人： HUAWEI TECH CO LTD

    发明人： FAN XIAODONG ,  JING XIAMING ,  LIU ZHIHUA ,  LIU XUJUN

    IPC分类号： H02M3/335

    CPC分类号： H02M3/33561 ,  H02M3/1584 ,  H02M3/33592 ,  H02M2001/007 ,  Y02B70/1475

    摘要： A voltage transforming device is provided, which includes: a first voltage transforming module, configured to perform a pre-stage voltage transformation on an input direct current (DC) voltage to output an isolated DC voltage, in which the pre-stage voltage transformation includes a primary transformation that converts the input DC voltage to a to-be-transformed alternating current (AC) voltage, a working period of the primary transformation includes a first half period and a second half period, and a dead time exists when a first half period and a second half period are switched between each other; a capacitor filtering module, configured to perform capacitor filtering compensation on the isolated DC voltage in the dead time to output a stable intermediate DC voltage; and a second voltage transforming module, configured to perform at least two separate post-stage voltage transformations on the intermediate DC voltage to output DC voltages required by at least two loads. A voltage transforming method and a power supply system are also provided. Thereby, the decoupling of the pre-stage and post-stage working modes is achieved, and the interference caused by voltage transformation is reduced.