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    Pulse width recovery in clock dividers
    1.
    发明授权
    Pulse width recovery in clock dividers 有权
    时钟分频器的脉宽恢复

    公开(公告)号：US09337820B1

    公开(公告)日：2016-05-10

    申请号：US14629460

    申请日：2015-02-23

    Applicant: QUALCOMM Incorporated

    Inventor： Shahin Solki ,  Dipti Ranjan Pal ,  Paul Ivan Penzes

    IPC: H03L7/00 ,  H03K5/156 ,  H03K5/15

    CPC classification number: H03K5/1565 ,  H03K5/1504

    Abstract: A duty cycle adjustment apparatus includes a duty cycle adjustment determination module configured to determine an adjustment to a duty cycle of a clock signal, and includes a clock delay module configured to receive the clock signal, to delay the clock signal through first and second delay stage modules (with a first and a second plurality of delay paths, respectively) based on the duty cycle adjustment determined by the duty cycle adjustment determination module, and to output the delayed clock signal. The second plurality of delay paths have a greater delay difference between each of the corresponding delay paths than the first plurality of delay paths. The apparatus further includes a duty cycle adjustment module configured to receive the clock signal and the delayed clock signal, to adjust the duty cycle of the clock signal based on the delayed clock signal, and to output a duty cycle adjusted clock signal.

    Abstract translation: 占空比调整装置包括占空比调整确定模块，其被配置为确定对时钟信号的占空比的调整，并且包括被配置为接收时钟信号的时钟延迟模块，以通过第一和第二延迟级延迟时钟信号 模块（分别具有第一和第二多个延迟路径），基于由占空比调整确定模块确定的占空比调整，并输出延迟的时钟信号。 第二多个延迟路径在每个相应的延迟路径之间具有比第一多个延迟路径更大的延迟差。 该装置还包括一个占空比调整模块，配置成接收时钟信号和延迟的时钟信号，以便根据延迟的时钟信号来调整时钟信号的占空比，并输出占空比调整后的时钟信号。

    CIRCUITS AND METHODS PROVIDING SUPPLY VOLTAGE CONTROL BASED ON TRANSIENT LOAD PREDICTION
    3.
    发明申请
    CIRCUITS AND METHODS PROVIDING SUPPLY VOLTAGE CONTROL BASED ON TRANSIENT LOAD PREDICTION 有权
    基于瞬态负载预测提供电源电压控制的电路和方法

    公开(公告)号：US20160132084A1

    公开(公告)日：2016-05-12

    申请号：US14938655

    申请日：2015-11-11

    Applicant: QUALCOMM Incorporated

    Inventor： Shahin Solki ,  Farsheed Mahmoudi

    IPC: G06F1/26 ,  G06F1/32

    CPC classification number: G06F1/26 ,  G06F1/3296 ,  H02M3/157 ,  H02M3/1588 ,  H02M2001/0025 ,  Y02B70/1466

    Abstract: An apparatus and method are disclosed for providing voltage control at a load of a buck converter. The buck converter is in a feedback loop so that a reference voltage determines a pulse width modulated (PWM) signal that is fed to the buck converter, and an output voltage of the buck converter is fed back to a PWM control circuit to maintain a value of the output voltage. The load at the buck converter provides event counters to a transient load current prediction circuit, which uses a curve fitting algorithm or other adaptive control algorithm to predict a change in current at the load. The transient load current prediction circuit then manipulates the reference voltage in accordance with the predicted change in current at the load.

    Abstract translation: 公开了一种用于在降压转换器的负载处提供电压控制的装置和方法。 降压转换器处于反馈回路中，使得参考电压确定馈送到降压转换器的脉宽调制（PWM）信号，并且降压转换器的输出电压被反馈到PWM控制电路以维持值 的输出电压。 降压转换器的负载为瞬态负载电流预测电路提供事件计数器，该电路使用曲线拟合算法或其他自适应控制算法来预测负载电流的变化。 然后，瞬态负载电流预测电路根据预测的负载电流变化来操纵参考电压。

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