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    • 8. 发明授权
    • Method and apparatus for performing switched supply drive in CMOS pad
drivers
    • 用于在CMOS焊盘驱动器中执行开关电源驱动的方法和装置
    • US5847575A
    • 1998-12-08
    • US668170
    • 1996-06-21
    • Duane GalbiChris L. HoughtonJohn A. Kowaleski, Jr.
    • Duane GalbiChris L. HoughtonJohn A. Kowaleski, Jr.
    • H03K19/003H03K19/0185H03K17/16
    • H03K19/00361
    • A driver circuit for limiting electrical noise on a quiescent signal is provided which includes a Transition High Driver circuit, a Transition Low Driver circuit, a Quiescent High Driver circuit, and a Quiescent Low Driver circuit. The driver circuit comprises means for driving an electrical signal with a presumed noisy Transition Power Supply network while it is transitioning from a low voltage level to a high voltage level or vice versa. The signal is driven by the Transition Power Supply network until the electrical signal reaches its quiescent voltage level. At this time, the signal is no longer driven by the Transition Power Supply network but rather by a presumed clean Quiescent Power Supply network. In this manner, noise from transitioning signals is prevented from coupling onto quiescent signals.
    • 提供了一种用于限制静态信号上的电噪声的驱动电路,其包括转换高驱动器电路,转换低驱动器电路,静态高驱动器电路和静态低驱动器电路。 驱动器电路包括用于在从低电压电平转换到高电压电平的同时,推测有噪声的过渡电源网络驱动电信号的装置,反之亦然。 信号由转换电源网络驱动,直到电信号达到其静态电压电平。 此时,信号不再由过渡电源网络驱动,而是由推定的干净的静态电源网络驱动。 以这种方式,防止来自转换信号的噪声被耦合到静态信号。