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1. 发明授权

US07279995B2 Circuit for controlling the time duration of a signal 有权
标题翻译：用于控制信号持续时间的电路
公开(公告)号：US07279995B2
公开(公告)日：2007-10-09
申请号：US11082136
申请日：2005-03-15
申请人： Kent Kernahan , John Carl Thomas
发明人： Kent Kernahan , John Carl Thomas
IPC分类号： H03B1/00
CPC分类号： H03K19/0963 , H03K19/215 , H03K23/005 , H03K23/40
摘要： A circuit controls the pulse width of an output signal from a voltage controlled oscillator. The voltage controlled oscillator includes a ring oscillator comprising a plurality of series-connected inverters. In one embodiment a selector selects at least one output signal from an inverter in the plurality of series-connected inverters. An output circuit receives the selected output signal and a reference signal to provide a final output signal having a time duration proportional to the number of inverters between the inverters providing the reference signal and the output signal to the selection circuit.
摘要翻译：电路控制来自压控振荡器的输出信号的脉冲宽度。压控振荡器包括具有多个串联连接的逆变器的环形振荡器。在一个实施例中，选择器在多个串联逆变器中选择来自逆变器的至少一个输出信号。输出电路接收所选择的输出信号和参考信号，以提供具有与提供参考信号的反相器和输出信号之间的反相器数量成比例的持续时间的最终输出信号。

2. 发明申请

US20080191667A1 Method for charging a battery using a constant current adapted to provide a constant rate of change of open circuit battery voltage 审中-公开
标题翻译：使用适于提供开路电池电压的恒定变化率的恒定电流对电池充电的方法
公开(公告)号：US20080191667A1
公开(公告)日：2008-08-14
申请号：US11705947
申请日：2007-02-12
申请人： Kent Kernahan , Milton D. Ribeiro , Dongsheng Zhou , Larry A. Klein
发明人： Kent Kernahan , Milton D. Ribeiro , Dongsheng Zhou , Larry A. Klein
IPC分类号： H02J7/00
CPC分类号： H02J7/045 , H01M10/44 , H01M10/48 , H02J7/0077
摘要： A method for charging a battery is disclosed, wherein a constant current charging current is periodically adjusted as needed such that the change in battery voltage increases approximately linearly during the charging period. In some embodiments the charging is in three phases. An optional first phase charges with a low current until the battery voltages rises to a certain minimum. During a second phase a constant current is provided while the battery voltage is monitored. The second phase constant current is periodically increased if the rate of change of battery voltage is less than a predetermined value and is decreased if the rate of change of battery voltage is more than the predetermined value. When the battery voltage attains a predetermined value, a third phase begins wherein a constant voltage is applied to the battery while the battery current draw is periodically monitored. Charging is stopped when the battery current draw falls to a predetermined value or, in some embodiments, when the charging current drops to a value that is a certain percentage of the charging current at the termination of phase two.In one embodiment the battery voltage is monitored to determine a possible battery failure, for example in the case of the battery voltage decreasing during the constant current charging of phase two. In some embodiments the battery is shorted out in response to detection of a possible failure.
摘要翻译：公开了一种用于对电池充电的方法，其中根据需要周期性地调节恒定电流充电电流，使得电池电压的变化在充电期间近似线性地增加。在一些实施例中，充电分三个阶段。可选的第一阶段以低电流充电直到电池电压上升到一定的最小值。在第二阶段期间，在监视电池电压的同时提供恒定电流。如果电池电压的变化率小于预定值，则第二相恒定电流周期性地增加，并且如果电池电压的变化率大于预定值，则第二相恒定电流会降低。当电池电压达到预定值时，开始第三阶段，其中在电池电流消耗被周期性地监测的同时向电池施加恒定电压。当电池电流下降到预定值时，或者在一些实施例中当充电电流下降到在阶段2结束时充电电流的一定百分比的值时，停止充电。在一个实施例中，监视电池电压以确定可能的电池故障，例如在阶段2的恒定电流充电期间电池电压降低的情况下。在一些实施例中，响应于可能的故障的检测，电池被短路。

3. 发明申请

US20080116861A1 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：US20080116861A1
公开(公告)日：2008-05-22
申请号：US11618942
申请日：2007-01-02
申请人： KENT KERNAHAN , MILTON D. RIBEIRO , DONGSHENG ZHOU , SORIN ANDREI SPANOCHE , RAFAEL PAYSEO-DIAZ , CRAIG NORMAN LAMBERT , MICHAEL W. CALDWELL , JINGQUAN CHEN
发明人： KENT KERNAHAN , MILTON D. RIBEIRO , DONGSHENG ZHOU , SORIN ANDREI SPANOCHE , RAFAEL PAYSEO-DIAZ , CRAIG NORMAN LAMBERT , MICHAEL W. CALDWELL , JINGQUAN CHEN
IPC分类号： G05F1/577 , G05F1/00 , H03H11/26
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.
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降低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，使得集成电路在规范内执行。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，并且由时间处理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所述与时间过程监视器相关联的所有集成电路芯片。

4. 发明授权

US07221130B2 Switching power converter employing pulse frequency modulation control 有权
标题翻译：采用脉冲调频控制的开关电源转换器
公开(公告)号：US07221130B2
公开(公告)日：2007-05-22
申请号：US11030688
申请日：2005-01-05
申请人： Milton D. Ribeiro , Kent Kernahan
发明人： Milton D. Ribeiro , Kent Kernahan
IPC分类号： G05F1/59
CPC分类号： H02M3/156
摘要： A method for controlling a switching power converter provides an efficient algorithm for controlling the output voltage across loads that are relatively light with small transients. When the output voltage is at or below a predetermined first magnitude, a determination is made of the charge required for one or more pulses to increase the output voltage to a predetermined second magnitude which is greater than a target output voltage. Corrective action is taken to raise the output voltage to the second magnitude and the system takes no further corrective action until output voltage is determined to be at or below the first magnitude. The method is useful with synchronous or non-synchronous power converters of buck, boost, buck/boost or other topologies. The method further provides a simple means for determining the amount of charge removed from a battery.
摘要翻译：用于控制开关功率转换器的方法提供了一种有效的算法，用于控制跨越具有小瞬变的相对较轻的负载的输出电压。当输出电压处于或低于预定的第一幅度时，确定一个或多个脉冲所需的电荷将输出电压增加到大于目标输出电压的预定的第二幅度。采取纠正措施将输出电压提高到第二幅度，并且在确定输出电压等于或低于第一幅度之前，系统不再采取任何纠正措施。该方法对于降压，升压，降压/升压或其他拓扑的同步或非同步电源转换器非常有用。该方法还提供了用于确定从电池移除的电荷量的简单装置。

5. 发明申请

US20080191666A1 METHOD FOR CHARGING A BATTERY USING A CONSTANT CURRENT ADAPTED TO PROVIDE A CONSTANT RATE OF CHANGE OF OPEN CIRCUIT BATTERY VOLTAGE 有权
标题翻译：使用适应于恒定电流的电池充电以提供持续的开路电流变化率的方法电池电压
公开(公告)号：US20080191666A1
公开(公告)日：2008-08-14
申请号：US11688876
申请日：2007-03-21
申请人： Kent Kernahan , Milton D. Ribelro , Dongsheng Zhou , Larry A. Klein
发明人： Kent Kernahan , Milton D. Ribelro , Dongsheng Zhou , Larry A. Klein
IPC分类号： H02J7/04 , H02J7/00
CPC分类号： H02J7/045 , H01M10/44 , H01M10/48 , H02J7/0077
摘要： A method for charging a battery is disclosed, wherein a constant current charging current is periodically adjusted as needed such that the change in battery voltage increases approximately linearly during the charging period. In some embodiments the charging is in three phases. An optional first phase charges with a low current until the battery voltages rises to a certain minimum. During a second phase a constant current is provided while the battery voltage is monitored. The second phase constant current is periodically increased if the rate of change of battery voltage is less than a predetermined value and is decreased if the rate of change of battery voltage is more than the predetermined value. When the battery voltage attains a predetermined value, a third phase begins wherein a constant voltage is applied to the battery while the battery current draw is periodically monitored. Charging is stopped when the battery current draw falls to a predetermined value or, in some embodiments, when the charging current drops to a value that is a certain percentage of the charging current at the termination of phase two.In one embodiment the battery voltage is monitored to determine a possible battery failure, for example in the case of the battery voltage decreasing during the constant current charging of phase two. In some embodiments the battery is shorted out in response to detection of a possible failure.
摘要翻译：公开了一种用于对电池充电的方法，其中根据需要周期性地调节恒定电流充电电流，使得电池电压的变化在充电期间近似线性地增加。在一些实施例中，充电分三个阶段。可选的第一阶段以低电流充电直到电池电压上升到一定的最小值。在第二阶段期间，在监视电池电压的同时提供恒定电流。如果电池电压的变化率小于预定值，则第二相恒定电流周期性地增加，并且如果电池电压的变化率大于预定值，则第二相恒定电流会降低。当电池电压达到预定值时，开始第三阶段，其中在电池电流消耗被周期性地监测的同时向电池施加恒定电压。当电池电流下降到预定值时，或者在一些实施例中当充电电流下降到在阶段2结束时充电电流的一定百分比的值时，停止充电。在一个实施例中，监视电池电压以确定可能的电池故障，例如在阶段2的恒定电流充电期间电池电压降低的情况下。在一些实施例中，响应于可能的故障的检测，电池被短路。

6. 发明授权

US07157889B2 Sample and hold system for controlling a plurality of pulse-width-modulated switching power converters 有权
标题翻译：用于控制多个脉冲宽度调制的开关电源转换器的采样和保持系统
公开(公告)号：US07157889B2
公开(公告)日：2007-01-02
申请号：US11083441
申请日：2005-03-17
申请人： Kent Kernahan , Elias Lozano , John Carl Thomas
发明人： Kent Kernahan , Elias Lozano , John Carl Thomas
IPC分类号： G05F1/40 , G11C27/02 , H02M3/335
CPC分类号： H02M3/157 , G05F3/262 , H02J7/0065 , H02M1/0845 , H02M3/156 , H02M3/1588 , H02M2001/0012 , H02M2001/007 , H02M2001/008 , H03M5/08 , H05B41/2828 , Y02B20/186 , Y02B70/1466 , Y10T307/438 , Y10T307/469
摘要： A system is disclosed for controlling a plurality of pulse-width-modulated switching power converters. The system includes a sample and hold circuit which is configured to receive information at time-separated intervals. The information the sample and hold circuit receives includes information which is indicative of the performance of the power converters. In some embodiments, the sample and hold circuit takes samples of data from each of the switching power converters and provides information to an analog to digital conversion circuit coupled to the sample and hold circuit. In one embodiment, the plurality of pulse-width-modulated switching power are configured to independently provide power to unrelated loads.
摘要翻译：公开了一种用于控制多个脉冲宽度调制的开关电源转换器的系统。该系统包括采样和保持电路，其被配置为以时间间隔的间隔接收信息。采样和保持电路接收的信息包括指示功率转换器的性能的信息。在一些实施例中，采样和保持电路从每个开关功率转换器获取数据采样，并将信息提供给耦合到采样和保持电路的模数转换电路。在一个实施例中，多个脉冲宽度调制开关功率被配置为独立地向不相关的负载提供电力。

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