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    • 73. 发明授权
    • Integrated end-bus plate for fuel cell
    • 用于燃料电池的集成终端总线板
    • US07597988B2
    • 2009-10-06
    • US11027534
    • 2004-12-29
    • Liqing HuZheng LiWeiliang Guo
    • Liqing HuZheng LiWeiliang Guo
    • H01M8/02B32B15/04
    • H01M8/0247B29C45/14B29K2705/00H01M8/0223H01M8/04007H01M8/04082H01M8/247Y10T428/31681
    • An integrated end-bus plate for fuel cell stack includes main plate body and a conducting plate. The main plate body is made of corrosion resistant and non-conducting material, which inner side has at least a contacting surface provided for flatly in contact with one side of the fuel cell unit attached adjacent to the main plate body. The conducting plate which is made of electro-conducting material is integrally attached to an inner side of the main plate body to form an integrated body for electrically communicating with the reaction region of the fuel cell unit. The integrated end-bus plate is designed to overcome the conventional drawbacks including the fluid leaking between the end plate and the bus plate and the formation of metallic ions due to the electrochemical corrosion of the bus plate that generally results in causing damages to the fuel cell.
    • 用于燃料电池堆的集成端总线板包括主板主体和导电板。 主板体由耐腐蚀和非导电材料制成,内侧至少具有与靠近主板主体安装的燃料电池单元的一侧平坦地接触的接触表面。 由导电材料制成的导电板一体地附接到主板体的内侧,以形成与燃料电池单元的反应区域电连通的一体化体。 集成终端总线板被设计为克服常规的缺点,包括端板和总线板之间的流体泄漏以及由于总线板的电化学腐蚀而形成的金属离子,这通常导致对燃料电池的损坏 。
    • 80. 发明授权
    • Dynamic control of frequency compensation for improved over-voltage protection in a switching regulator
    • 频率补偿的动态控制,用于改善开关稳压器中的过压保护
    • US08884596B2
    • 2014-11-11
    • US13099021
    • 2011-05-02
    • Zheng LiTawen Mei
    • Zheng LiTawen Mei
    • G05F1/00
    • H03F3/45183H03F2203/45138
    • An error amplifier includes a difference amplifier providing an error signal representing a difference in voltage between a feedback signal and a reference signal. The error amplifier further includes a compensation circuit limiting the rate of change of the error signal. The compensation circuit includes a switch that when activated effectively removes a circuit portion from the compensation circuit. A switch signal indicates for the switch to be activated when the feedback signal exceeds the reference signal by a predefined amount.The compensation circuit may further include a second switch that when activated effectively removes a second circuit portion from the compensation circuit. A second switch signal indicates for the second switch to be activated when the feedback signal exceeds the reference signal by a second predefined amount.
    • 误差放大器包括差分放大器,其提供表示反馈信号和参考信号之间的电压差的误差信号。 误差放大器还包括限制误差信号的变化率的补偿电路。 补偿电路包括一个开关,当被激活时有效地从补偿电路去除电路部分。 当反馈信号超过参考信号预定量时,开关信号指示开关被激活。 补偿电路还可以包括第二开关,其在被激活时有效地从补偿电路去除第二电路部分。 当反馈信号超过参考信号第二预定量时,第二开关信号指示第二开关被激活。