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热词
    • 7. 发明授权
    • Device for limiting current in a sensor
    • 用于限制传感器电流的装置
    • US07292400B2
    • 2007-11-06
    • US09840663
    • 2001-04-23
    • Andrew Bishop
    • Andrew Bishop
    • G11B5/09
    • G11B5/40G11B5/02G11B2005/0016
    • A read/write device for a disk drive is disclosed. The read/write device includes a pre-amplifier and a recording head. The read/write device also includes a write signal path between the pre-amplifier and the recording head. The write signal path includes a write current. The read/write device also includes a read signal path between the pre-amplifier and the recording head. The read signal path includes an induced current related to the write current. The read/write device also includes a shunt path in the pre-amplifier to draw a part of the induced current from the read signal path.
    • 公开了一种用于磁盘驱动器的读/写设备。 读/写装置包括前置放大器和记录头。 读/写设备还包括在前置放大器和记录头之间的写入信号路径。 写入信号路径包括写入电流。 读/写设备还包括在前置放大器和记录头之间的读信号路径。 读取信号路径包括与写入电流相关的感应电流。 读/写装置还包括在前置放大器中的分流路径,以从读取信号路径中吸取一部分感应电流。