Current limiting circuit
    1.
    发明授权
    Current limiting circuit 有权
    限流电路

    公开(公告)号:US08004256B2

    公开(公告)日:2011-08-23

    申请号:US12726791

    申请日:2010-03-18

    IPC分类号: G05F1/00

    摘要: A current limiting circuit for a boost converter includes a voltage divider circuit between a main switch which flows a current to an inductor and a comparator included in a current detecting circuit. The voltage divider circuit includes two transistors of the same type as that of the main switch, which are connected in series. One of the two transistors is a sub-switch which is connected between a voltage division point and a drain terminal of the main switch, and is turned on/off in synchronization with the main switch in accordance with an output signal of a control circuit. The other transistor is a detection resistance transistor which is connected between the voltage division point and a source terminal of the main switch, and whose gate terminal is connected to a bias voltage so that the detection resistance transistor is always on.

    摘要翻译: 用于升压转换器的限流电路包括在电流流向电感器的主开关和包括在电流检测电路中的比较器之间的分压器电路。 分压器电路包括与主开关相同类型的两个串联的晶体管。 两个晶体管中的一个是子开关,其连接在主开关的分压点和漏极端子之间,并且根据控制电路的输出信号与主开关同步地导通/截止。 另一个晶体管是连接在主开关的分压点和源极端子之间的检测电阻晶体管,其栅极端子连接到偏置电压,使得检测电阻晶体管总是导通。

    Electrode for fuel cell, fuel cell, and method of preparing electrode for fuel cell
    2.
    发明申请
    Electrode for fuel cell, fuel cell, and method of preparing electrode for fuel cell 审中-公开
    燃料电池用电极,燃料电池及燃料电池用电极的制造方法

    公开(公告)号:US20070190398A1

    公开(公告)日:2007-08-16

    申请号:US11353956

    申请日:2006-02-15

    摘要: A fuel cell that operates at high temperature under non-humid conditions using an electrolyte membrane prepared by impregnating a basic polymer with an acid and a method of producing an electrode for a fuel cell, the fuel cell includes a catalyst layer electrode that can prevent the inhibition of gas diffusion due to generated water and the inhibition of gas diffusion due to an electrode catalyst being covered with an acid that leaks from the electrolyte membrane impregnated with the acid. The electrode includes a catalyst layer including a platinum-containing catalyst, a basic polymer, and a hydrophobic binder.

    摘要翻译: 一种燃料电池,其在非湿度条件下使用通过用酸浸渍碱性聚合物制备的电解质膜和在制造燃料电池用电极的方法中在高温下工作,所述燃料电池包括催化剂层电极, 抑制由于产生的水引起的气体扩散和由于电极催化剂的气体扩散的抑制被从浸渍有酸的电解质膜渗漏的酸所覆盖。 电极包括含有铂的催化剂,碱性聚合物和疏水性粘合剂的催化剂层。

    Membrane-electrode-assembly with solid polymer electrolyte
    3.
    发明授权
    Membrane-electrode-assembly with solid polymer electrolyte 有权
    具有固体聚合物电解质的膜 - 电极组装

    公开(公告)号:US06723464B2

    公开(公告)日:2004-04-20

    申请号:US09871150

    申请日:2001-05-31

    IPC分类号: H01M486

    摘要: A membrane-electrode-assembly with a solid polymer electrolyte, wherein a laminated structure is obtained by a process in which a membrane/catalyst layer conjugate produced by bonding a first catalyst layer containing a catalyst and an ion-conducting resin to a solid polymer electrolyte membrane, and a gas diffusion layer/catalyst layer conjugate produced by forming a second catalyst layer containing a catalyst and an ion-conducting resin on one side of a gas diffusion layer consisting of a gas-permeable electroconductive sheet material are laminated at least on the anode or cathode side such that the first catalyst layer and second catalyst layer face each other.

    摘要翻译: 一种具有固体聚合物电解质的膜电极组件,其中通过将含有催化剂的第一催化剂层和离子导电树脂粘合到固体聚合物电解质上而制备的膜/催化剂层共轭物的方法获得层压结构体 膜,以及通过在由透气性导电性片材构成的气体扩散层的一面形成含有催化剂和离子传导性树脂的第二催化剂层而制造的气体扩散层/催化剂层共轭体,至少在 阳极或阴极侧,使得第一催化剂层和第二催化剂层彼此面对。