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    • 2. 发明授权
    • Method for balancing currents to switching devices
    • 用于平衡电流到开关器件的方法
    • US4979089A
    • 1990-12-18
    • US357272
    • 1989-05-26
    • Shinichi TakaseMasayuki Ishii
    • Shinichi TakaseMasayuki Ishii
    • H02M1/088H02M7/00H02M7/5387H03K17/12
    • H03K17/12H02M1/088H02M7/003H02M7/5387
    • A method is provided for balancing a current distribution to a plurality of switching device of full-bridge inverter composed of N modules. Each of the N modules includes series connected first and second switching devices. The N modules are arranged in a row. First and second supply feeder bars for connection to a dc power source are provided along one side of the row of N modules, and first and second load feeder bars are provided on the opposite side of the row of N modules for connection to a load. Each of the N modules is selectively connected to one of the first and second load feeder bars and to one of the first and second supply feeder bars such that a current flow direction of each module is the same as the a current flow direction of one adjacent module and is opposite a current flow direction of the other adjacent module. Furthermore, the dc power source is connected to the first and second supply feeder bars at one end of the row of modules, and the load is connected to the load feeder bars at the other end of the row of modules.
    • 提供了一种用于平衡电流分布与由N个模块组成的全桥逆变器的多个开关装置的方法。 每个N个模块包括串联的第一和第二开关装置。 N个模块排列成一行。 连接到直流电源的第一和第二供电给料棒设置在N个模块行的一侧,并且第一和第二负载馈送杆设置在N个模块行的相对侧,用于连接到负载。 N个模块中的每一个选择性地连接到第一和第二负载馈送杆中的一个以及第一和第二供电给料棒中的一个,使得每个模块的电流流动方向与一个相邻的模块的电流流动方向相同 并且与另一相邻模块的当前流动方向相反。 此外,直流电源在一排模块的一端连接到第一和第二供电给料棒,并且负载连接到模排行的另一端的负载供给杆。
    • 9. 发明授权
    • IC card reader
    • IC卡读卡器
    • US07370804B2
    • 2008-05-13
    • US11080510
    • 2005-03-16
    • Masayuki Ishii
    • Masayuki Ishii
    • G06K13/00
    • G06K7/0026G06K7/0021
    • An IC card reader includes contactors contacting to IC contact points of the IC card, a frame forming with a card insertion path into which the IC card is inserted and a retraction domain for retracting the contactors in a direction away from the insertion path, a plate spring biasing the contactors to the retraction domain, and a mechanism responsive to the insertion of the IC card, advancing the contactors into the insertion path with the plate spring deflected to make contact the contactors to the IC contact points of the IC card, and responsive to extraction of the IC card and retracting the contactors to the retraction domain with the plate spring released force of the plate spring, becoming difficult for deformation and damage of the contactors.
    • IC卡读卡器包括与IC卡的IC接触点接触的接触器,形成有插入IC卡的卡插入路径的框架和用于在远离插入路径的方向缩回接触器的收回区域;板 弹簧将接触器偏置到缩回区域,以及响应于IC卡的插入的机构,使接触器进入插入路径,板簧被偏转以使接触器接触到IC卡的IC接触点,并且响应 为了提取IC卡,并且通过板簧的板簧释放力使接触器回缩到收缩区域,变得容易变形和损坏接触器。