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27 条记录 (耗时 0.029 秒)

    Off chip driver (OCD) with variable drive capability for noise control
    1.
    发明授权
    Off chip driver (OCD) with variable drive capability for noise control 失效
    具有可变驱动能力的离散驱动器（OCD），用于噪声控制

    公开(公告)号：US6014046A

    公开(公告)日：2000-01-11

    申请号：US904411

    申请日：1997-07-31

    申请人： David E. Douse ,  Scott C. Lewis ,  Thomas M. Maffitt

    发明人： David E. Douse ,  Scott C. Lewis ,  Thomas M. Maffitt

    IPC分类号： H03K19/00 ,  H03K19/094 ,  H03B1/00 ,  H03K3/00

    CPC分类号： H03K19/09429 ,  H03K19/0013

    摘要： An Off Chip Driver (OCD) having a high, a low and a high impedance (Hi-Z) state. The OCD includes an up-level pre-drive, a down-level pre-drive and a driver. The driver mirrors current in the up-level pre-drive and down-level pre-drive. Both pre-drive circuits have an unbalanced input-dependant delay to quickly turn off/on the on and off driver devices and, after a delay, reduce the drive on the turned on device to a steady state level. The delay may have a fixed length set by an inverter chain or may be dependent upon output voltage.

    摘要翻译： 具有高，低和高阻抗（Hi-Z）状态的片外驱动器（OCD）。 OCD包括上级预驱动，下级预驱动和驱动程序。 驱动程序在上级预驱动和下级预驱动器中镜像当前。 两个预驱动电路具有不平衡的输入相关延迟，以快速关闭/打开和关闭驱动器设备，并且在延迟之后将打开的设备上的驱动器减小到稳定状态级别。 延迟可以具有由逆变器链设置的固定长度，或者可以取决于输出电压。

    Off-chip driver and receiver circuits for multiple voltage level DRAMs
    2.
    发明授权
    Off-chip driver and receiver circuits for multiple voltage level DRAMs 失效
    用于多个电压级DRAM的片外驱动和接收器电路

    公开(公告)号：US5995440A

    公开(公告)日：1999-11-30

    申请号：US121499

    申请日：1998-07-23

    申请人： Scott C. Lewis ,  Thomas M. Maffitt

    发明人： Scott C. Lewis ,  Thomas M. Maffitt

    IPC分类号： G11C5/14 ,  G11C8/00

    CPC分类号： G11C5/14

    摘要： Off-chip driver and receiver circuits for multiple level memory applications including a voltage sensing circuit that provides an output voltage adjust signal having different voltage levels corresponding to different external voltage levels of the memory circuit. The off-chip driver circuit is connected to the voltage adjust signal and has an output signal transition slew rate that varies in response to the voltage level of the voltage adjust signal. The circuit is also connected to the voltage adjust signal and includes a filter circuit having a time constant that adjusts the noise immunity of the receiver in response to the voltage level of the voltage adjust signal.

    摘要翻译： 用于多级存储器应用的片外驱动器和接收器电路，包括电压感测电路，其提供具有对应于存储器电路的不同外部电压电平的不同电压电平的输出电压调整信号。 片外驱动电路连接到电压调整信号，具有响应于电压调整信号的电压电平而变化的输出信号转换转换速率。 电路还连接到电压调整信号，并且包括具有时间常数的滤波器电路，其响应于电压调整信号的电压电平来调整接收器的噪声抗扰度。

    Wide range voltage regulator
    7.
    发明授权
    Wide range voltage regulator 失效
    宽范围电压调节器

    公开(公告)号：US5814980A

    公开(公告)日：1998-09-29

    申请号：US706861

    申请日：1996-09-03

    申请人： Scott C. Lewis

    发明人： Scott C. Lewis

    IPC分类号： G05F3/24 ,  G05F3/04

    CPC分类号： G05F3/247

    摘要： A voltage regulating system and method are disclosed for use in an integrated circuit. The voltage regulating system can operate with a supply voltage ranging from 2.9 to 5.5 volts. The voltage regulating system includes a differential amplifier which is connected in series to a linear amplifier. The circuit contains level shifters so that the voltage regulator can operate with very low supply voltages.

    摘要翻译： 公开了用于集成电路的电压调节系统和方法。 电压调节系统可以工作在2.9​​至5.5伏的电源电压范围内。 电压调节系统包括与线性放大器串联连接的差分放大器。 该电路包含电平转换器，使得稳压器可以以非常低的电源电压工作。