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2. 发明申请

WO2008079188A2 APPARATUS AND METHOD FOR CONTROLLING THE PROPAGATION DELAY OF A CIRCUIT BY CONTROLLING THE VOLTAGE APPLIED TO THE CIRCUIT 审中-公开
标题翻译：通过控制电路的电压来控制电路的传播延迟的装置和方法
公开(公告)号：WO2008079188A2
公开(公告)日：2008-07-03
申请号：PCT/US2007/024284
申请日：2007-11-21
申请人： FYRESTORM, Inc , KERNAHAN, Kent , LAMBERT, Craig, Norman , PAYSEO-DIAZ, Rafael , RIBEIRO, Milton, D. , SPANOCHE, Sorin, Andrei , CHEN, Jingquan , CALDWELL, Michael, W.
发明人： KERNAHAN, Kent , LAMBERT, Craig, Norman , PAYSEO-DIAZ, Rafael , RIBEIRO, Milton, D. , SPANOCHE, Sorin, Andrei , CHEN, Jingquan , CALDWELL, Michael, W.
IPC分类号： G05F1/10
CPC分类号： H03H11/265 , H03K3/0315 , H03K2005/00143
摘要： The voltage applied to an integrated circuit is controlled by a temporal process monitor formed as part of the integrated circuit. The temporal process monitor includes a voltage controlled oscillator for producing a first output signal having a first period. A comparator compares the first period to one or more reference values. Should the first period be greater than a first selected reference value the comparator sends a signal to increase the voltage being supplied to the integrated circuit. Should the first period be less than a second selected reference value, the comparator sends a signal to decrease the voltage applied to the integrated circuit. In some embodiments a scaling circuit is provided for producing a second output signal having a second period different from (typically but not necessarily longer than) the first period. By placing the temporal process monitor on an integrated circuit chip, process variations and environmental factors which affect the performance of the integrated circuit can be automatically compensated so that the integrated circuit performs within specifications. Two or more temporal process monitors can be placed on a single integrated circuit chip or on different integrated circuit chips and the longest period produced by the temporal process monitors can be used to control the voltage supplied to all the sections of the integrated circuit chip associated with the temporal process monitors or to all the integrated circuit chips associated with the temporal process monitors. In some embodiments voltages related to the frequency of a temporal process monitor signal and the frequency of a fixed frequency clock are provided to an error amplifier, which changes the voltage applied to the integrated circuit such that the two frequencies are the same.
摘要翻译：施加到集成电路的电压由作为集成电路的一部分形成的时间处理监视器来控制。时间处理监视器包括用于产生具有第一周期的第一输出信号的压控振荡器。比较器将第一周期与一个或多个参考值进行比较。如果第一周期大于第一选择的参考值，则比较器发送信号以增加提供给集成电路的电压。如果第一周期小于第二选择的参考值，则比较器发送信号以减小施加到集成电路的电压。在一些实施例中，提供缩放电路用于产生具有与第一周期不同（通常但不一定长于）的第二周期的第二输出信号。通过将时间过程监视器放置在集成电路芯片上，可以自动补偿影响集成电路性能的过程变化和环境因素，使得集成电路在规格内执行。可以将两个或更多个时间过程监视器放置在单个集成电路芯片上或不同的集成电路芯片上，并且由时间过程监视器产生的最长周期可以用于控制提供给与所述集成电路芯片相关联的集成电路芯片的所有部分的电压时间过程监视与与时间过程监视器相关联的所有集成电路芯片。在一些实施例中，与时间过程监视信号的频率和固定频率时钟的频率相关的电压被提供给误差放大器，该误差放大器改变施加到集成电路的电压，使得两个频率相同。

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