公开(公告)号：US07492134B2

公开(公告)日：2009-02-17

申请号：US11480715

申请日：2006-07-03

申请人： Benjamim Tang ,  Robert T. Carroll ,  Nicholas R. Steffen ,  Richard C. Pierson

发明人： Benjamim Tang ,  Robert T. Carroll ,  Nicholas R. Steffen ,  Richard C. Pierson

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2001/0009 ,  H02M2001/0012

摘要： Disclosed is a power regulator for providing precisely regulated power to a microelectronic device such as a microprocessor. Improved power regulation is accomplished by optimizing the power efficiency of the power regulator. In particular, in a multiphase system, the number of active phases is increased or decreased to achieve optimum power efficiency. The multiphase voltage regulator adapts the operating mode to maximize efficiency as the load current demand of the load device changes by adjusting the number of active phases to maximize efficiency. The total value of current provided by the regulator and the total number of active phases is determined, the total number of active phases is compared with the number of active phases required to provide the total value of current at maximum efficiency; and the number of active phases is adjusted to provide the total value of current at maximum efficiency.A current sense circuit senses the current at each phase, a summing circuit coupled to the output of the current sense circuit provides the total current value of all the measured phases, a circuit coupled to the output of the summing circuit provides the time averaged total current value to a threshold detecting circuit that determines the number of phases at which the voltage regulator should be operating for maximum efficiency, and a circuit for comparing the number of phases that are operating to the number of phases at which the voltage regulator should be operating adjusts the number of active phases to the number of phases at which the voltage regulator should be operating for maximum efficiency.

摘要翻译： 公开了一种功率调节器，用于向诸如微处理器的微电子器件提供精确调节的功率。 通过优化功率调节器的功率效率来实现改进的功率调节。 特别地，在多相系统中，活性相的数量增加或减少以达到最佳功率效率。 当负载设备的负载电流需求通过调节活动相数量来最大化效率而改变时，多相电压调节器可以适应操作模式以最大化效率。 确定调节器提供的电流总值和有效相的总数，将有效相的总数与最大效率提供电流总值所需的有效相数进行比较; 并且调整活动相的数量以提供最大效率的电流总值。 电流感测电路感测每相的电流，耦合到电流检测电路的输出的求和电路提供所有测量相位的总电流值，耦合到求和电路的输出的电路提供时间平均总电流 值到阈值检测电路，其确定电压调节器应该在最大效率下操作的相位数，以及用于将正在操作的相位数与用于调节电压的相位数进行比较的电路进行调整 电压调节器应运行的相数达到最大效率的有效相数。

公开(公告)号：US08193796B2

公开(公告)日：2012-06-05

申请号：US12371835

申请日：2009-02-16

申请人： Benjamim Tang ,  Robert T. Carroll ,  Nicholas R. Steffen ,  Richard C. Pierson

发明人： Benjamim Tang ,  Robert T. Carroll ,  Nicholas R. Steffen ,  Richard C. Pierson

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2001/0012

摘要： Disclosed is a power regulator for providing precisely regulated power to a microelectronic device such as a microprocessor. Improved power regulation is accomplished by optimizing the power efficiency of the power regulator. In particular, in a multiphase system, the number of active phases is increased or decreased to achieve optimum power efficiency. The multiphase voltage regulator adapts the operating mode to maximize efficiency as the load current demand of the load device changes by adjusting the number of active phases to maximize efficiency. The total value of current provided by the regulator and the total number of active phases is determined, the total number of active phases is compared with the number of active phases required to provide the total value of current at maximum efficiency; and the number of active phases is adjusted to provide the total value of current at maximum efficiency.A current sense circuit senses the current at each phase, a summing circuit coupled to the output of the current sense circuit provides the total current value of all the measured phases, a circuit coupled to the output of the summing circuit provides the time averaged total current value to a threshold detecting circuit that determines the number of phases at which the voltage regulator should be operating for maximum efficiency, and a circuit for comparing the number of phases that are operating to the number of phases at which the voltage regulator should be operating adjusts the number of active phases to the number of phases at which the voltage regulator should be operating for maximum efficiency.

摘要翻译： 公开了一种功率调节器，用于向诸如微处理器的微电子器件提供精确调节的功率。 通过优化功率调节器的功率效率来实现改进的功率调节。 特别地，在多相系统中，活性相的数量增加或减少以达到最佳功率效率。 当负载设备的负载电流需求通过调节活动相数量来最大化效率而改变时，多相电压调节器可以适应操作模式以最大化效率。 确定调节器提供的电流总值和有效相的总数，将有效相的总数与最大效率提供电流总值所需的有效相数进行比较; 并且调整活动相的数量以提供最大效率的电流总值。 电流感测电路感测每相的电流，耦合到电流检测电路的输出的求和电路提供所有测量相位的总电流值，耦合到求和电路的输出的电路提供时间平均总电流 值到阈值检测电路，其确定电压调节器应该在最大效率下操作的相位数，以及用于将正在操作的相位数与用于调节电压的相位数进行比较的电路进行调整 电压调节器应运行的相数达到最大效率的有效相数。

公开(公告)号：US20090224731A1

公开(公告)日：2009-09-10

申请号：US12371835

申请日：2009-02-16

申请人： BENJAMIM TANG ,  Robert T. Carroll ,  Nicholas R. Steffen ,  Richard C. Pierson

发明人： BENJAMIM TANG ,  Robert T. Carroll ,  Nicholas R. Steffen ,  Richard C. Pierson

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2001/0012

摘要： Disclosed is a power regulator for providing precisely regulated power to a microelectronic device such as a microprocessor. Improved power regulation is accomplished by optimizing the power efficiency of the power regulator. In particular, in a multiphase system, the number of active phases is increased or decreased to achieve optimum power efficiency. The multiphase voltage regulator adapts the operating mode to maximize efficiency as the load current demand of the load device changes by adjusting the number of active phases to maximize efficiency. The total value of current provided by the regulator and the total number of active phases is determined, the total number of active phases is compared with the number of active phases required to provide the total value of current at maximum efficiency; and the number of active phases is adjusted to provide the total value of current at maximum efficiency.A current sense circuit senses the current at each phase, a summing circuit coupled to the output of the current sense circuit provides the total current value of all the measured phases, a circuit coupled to the output of the summing circuit provides the time averaged total current value to a threshold detecting circuit that determines the number of phases at which the voltage regulator should be operating for maximum efficiency, and a circuit for comparing the number of phases that are operating to the number of phases at which the voltage regulator should be operating adjusts the number of active phases to the number of phases at which the voltage regulator should be operating for maximum efficiency.

摘要翻译： 公开了一种功率调节器，用于向诸如微处理器的微电子器件提供精确调节的功率。 通过优化功率调节器的功率效率来实现改进的功率调节。 特别地，在多相系统中，活性相的数量增加或减少以达到最佳功率效率。 当负载设备的负载电流需求通过调节活动相数量来最大化效率而改变时，多相电压调节器可以适应操作模式以最大化效率。 确定调节器提供的电流总值和有效相的总数，将有效相的总数与最大效率提供电流总值所需的有效相数进行比较; 并且调整活动相的数量以提供最大效率的电流总值。 电流感测电路感测每相的电流，耦合到电流检测电路的输出的求和电路提供所有测量相位的总电流值，耦合到求和电路的输出的电路提供时间平均总电流 值到阈值检测电路，其确定电压调节器应该在最大效率下操作的相位数，以及用于将正在操作的相位数与用于调节电压的相位数进行比较的电路进行调整 电压调节器应运行的相数达到最大效率的有效相数。

公开(公告)号：US20120200274A1

公开(公告)日：2012-08-09

申请号：US13365908

申请日：2012-02-03

申请人： Benjamim Tang ,  Robert T. Carroll ,  Scott Wilson Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

发明人： Benjamim Tang ,  Robert T. Carroll ,  Scott Wilson Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

IPC分类号： G05F1/56

CPC分类号： H02M3/1584

摘要： A multiphase power regulator includes a multiphase pulse width modulator, an output stage and an active transient response circuit. The output stage includes a high side transistor, a low side transistor and an inductor. The output stage is configured to supply power to a load responsive to signals generated by the multiphase pulse width modulator. The active transient response circuit is coupled between the output stage and the multiphase pulse width modulator and configured to detect the voltage level at the output stage and provide a signal to the multiphase pulse width modulator that is a function of the amplitude of the deviation of the detected voltage level from a target voltage.

摘要翻译： 多相功率调节器包括多相脉宽调制器，输出级和有源瞬态响应电路。 输出级包括高侧晶体管，低侧晶体管和电感器。 输出级被配置为响应于由多相脉宽调制器产生的信号向负载供电。 有源瞬态响应电路耦合在输出级和多相脉宽调制器之间，并被配置为检测输出级的电压电平，并向多相脉宽调制器提供信号，该信号是幅度偏差的函数 从目标电压检测电压电平。

公开(公告)号：US08134354B2

公开(公告)日：2012-03-13

申请号：US12396975

申请日：2009-03-03

申请人： Benjamim Tang ,  Robert T. Carroll ,  Scott W. Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

发明人： Benjamim Tang ,  Robert T. Carroll ,  Scott W. Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

IPC分类号： G05F1/59

CPC分类号： H02M3/1584

摘要： Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a predetermined amount are detected by an ATR circuit and a correction signal is applied. The correction signal is in the form of asynchronous pulses and the number of such pulses is a function of the magnitude of the voltage excursion as determined by the number of thresholds that are exceeded. Also disclosed is an adaptive voltage positioning (AVP) circuit and method for early detection of a transient event by sensing voltage changes at the load and adjusting the target voltage with pre-determined current values prior to the time that ATR event changes in the current at the load are detected. The AVP load line is pre-positioned for more precise current control. Also disclosed is an adaptive filter with adjustable frequency characteristics in response to an ATR event. Also disclosed is a pulse limiting circuit. Also disclosed is a tri-state implementation. Response to transient events is further improved with an external ATR circuit coupled to the load.

摘要翻译： 公开了一种多相脉宽调制电压调节器和方法，其中通过ATR电路检测超过负载线电压超过预定量的瞬态电压偏移或偏差，并且施加校正信号。 校正信号是异步脉冲的形式，并且这样的脉冲的数量是由超过的阈值的数量确定的电压偏移的大小的函数。 还公开了一种用于通过感测负载上的电压变化来早期检测瞬态事件的自适应电压定位（AVP）电路和方法，并且在ATR事件在电流当前变化的时刻之前用预定电流值调节目标电压 检测负载。 AVP负载线预先定位，以实现更精确的电流控制。 还公开了响应于ATR事件具有可调频率特性的自适应滤波器。 还公开了一种脉冲限制电路。 还公开了三态实现。 外部ATR电路耦合到负载，进一步提高对瞬态事件的响应。

公开(公告)号：US07521913B2

公开(公告)日：2009-04-21

申请号：US11311115

申请日：2005-12-19

申请人： Benjamim Tang ,  Robert T. Carroll ,  Scott Wilson Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

发明人： Benjamim Tang ,  Robert T. Carroll ,  Scott Wilson Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

IPC分类号： G05F1/618

CPC分类号： H02M3/1584

摘要： Disclosed is a multi-phase pulse width modulated voltage regulator and method in which transient voltage excursions or deviations that exceed the load line voltage by more than a pre-determined amount are detected by an ATR circuit and a correction signal is applied. The correction signal is in the form of asynchronous pulses and the number of such pulses is a function of the magnitude of the voltage excursion as determined by the number of thresholds that are exceeded. Also disclosed is an adaptive voltage positioning (AVP) circuit and method for early detection of a transient event by sensing voltage changes at the load and adjusting the target voltage with pre-determined current values prior to the time that ATR event changes in the current at the load are detected. The AVP load line is pre-positioned for more precise current control. Also disclosed is an adaptive filter with adjustable frequency characteristics in response to an ATR event. Also disclosed is a pulse limiting circuit. Also disclosed is a tri-state implementation. Response to transient events is further improved with an external ATR circuit coupled to the load.

摘要翻译： 公开了一种多相脉宽调制电压调节器和方法，其中通过ATR电路检测超过负载线电压超过预定量的瞬态电压偏移或偏差，并且施加校正信号。 校正信号是异步脉冲的形式，并且这样的脉冲的数量是由超过的阈值的数量确定的电压偏移的大小的函数。 还公开了一种用于通过感测负载上的电压变化来早期检测瞬态事件的自适应电压定位（AVP）电路和方法，并且在ATR事件在电流当前变化的时刻之前用预定电流值调节目标电压 检测负载。 AVP负载线预先定位，以实现更精确的电流控制。 还公开了响应于ATR事件具有可调频率特性的自适应滤波器。 还公开了一种脉冲限制电路。 还公开了三态实现。 外部ATR电路耦合到负载，进一步提高对瞬态事件的响应。

公开(公告)号：US06570406B2

公开(公告)日：2003-05-27

申请号：US10010825

申请日：2001-11-13

申请人： Benjamim Tang ,  Richard C. Pierson

发明人： Benjamim Tang ,  Richard C. Pierson

IPC分类号： H03K19003

CPC分类号： H04L25/0286 ,  H04L25/0272 ,  H04L25/0288 ,  H04L25/03878

摘要： A method and circuit for pre-emphasis equalization of a high speed data communication system can be provided through the use of programmable pulse shaping. A data communication system configured with the pre-emphasis equalization circuit operates by receiving an input data stream and outputting a data stream for transmission through an interconnect or other transmission channel. The data can be passed through an output buffer configured with programmable pre-emphasis equalization, having input inverters at an input stage and output inverters at an output stage. During operation, once an input signal to the input stage transitions, for example from a low to a high state, an input signal to the output stage is configured to a full amplitude to drive the transmission channel. Once the output stage transitions to a full amplitude, the input of the output stage is configured closer to a mid-scale amplitude. The amount of amplitude change from full scale back to mid-scale determines the amount of equalization to be provided by the output buffer to the transmission channel.

公开(公告)号：US06794900B2

公开(公告)日：2004-09-21

申请号：US10205340

申请日：2002-07-24

申请人： Benjamim Tang ,  Richard C. Pierson

发明人： Benjamim Tang ,  Richard C. Pierson

IPC分类号： H03K19003

CPC分类号： H04L25/0286 ,  H04L25/0272 ,  H04L25/0288 ,  H04L25/03878

摘要： A method and circuit for pre-emphasis equalization of a high speed data communication system can be provided through the use of programmable pulse shaping. A data communication system configured with the pre-emphasis equalization circuit operates by receiving an input data stream and outputting a data stream for transmission through an interconnect or other transmission channel. The data can be passed through an output buffer configured with programmable pre-emphasis equalization, having input inverters at an input stage and output inverters at an output stage. During operation, once an input signal to the input stage transitions, for example from a low to a high state, an input signal to the output stage is configured to a full amplitude to drive the transmission channel. Once the output stage transitions to a full amplitude, the input of the output stage is configured closer to a mid-scale amplitude. The amount of amplitude change from full scale back to mid-scale determines the amount of equalization to be provided by the output buffer to the transmission channel.

摘要翻译： 可以通过使用可编程脉冲整形来提供用于高速数据通信系统的预加重均衡的方法和电路。 配置有预加重均衡电路的数据通信系统通过接收输入数据流并通过互连或其他传输信道输出数据流进行传输。 数据可以通过配置有可编程预加重均衡的输出缓冲器，在输入级具有输入反相器，并在输出级输出反相器。 在操作期间，一旦输入级的输入信号转变，例如从低电平到高电平状态，到输出级的输入信号被配置为全幅度以驱动传输通道。 一旦输出级转变到一个完整的幅度，输出级的输入被配置成更接近中等幅度。 从满量程到中等刻度的幅度变化量决定了输出缓冲器向传输通道提供的均衡量。

公开(公告)号：US08541995B2

公开(公告)日：2013-09-24

申请号：US13365908

申请日：2012-02-03

申请人： Benjamin Tang ,  Robert T. Carroll ,  Scott Wilson Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

发明人： Benjamin Tang ,  Robert T. Carroll ,  Scott Wilson Southwell ,  Kenneth A. Ostrom ,  Richard C. Pierson

IPC分类号： G05F1/575

CPC分类号： H02M3/1584

摘要： A multiphase power regulator includes a multiphase pulse width modulator, an output stage and an active transient response circuit. The output stage includes a high side transistor, a low side transistor and an inductor. The output stage is configured to supply power to a load responsive to signals generated by the multiphase pulse width modulator. The active transient response circuit is coupled between the output stage and the multiphase pulse width modulator and configured to detect the voltage level at the output stage and provide a signal to the multiphase pulse width modulator that is a function of the amplitude of the deviation of the detected voltage level from a target voltage.

摘要翻译： 多相功率调节器包括多相脉宽调制器，输出级和有源瞬态响应电路。 输出级包括高侧晶体管，低侧晶体管和电感器。 输出级被配置为响应于由多相脉宽调制器产生的信号向负载供电。 有源瞬态响应电路耦合在输出级和多相脉宽调制器之间，并被配置为检测输出级的电压电平，并向多相脉宽调制器提供信号，该信号是幅度偏差的函数 从目标电压检测电压电平。

公开(公告)号：US06407875B1

公开(公告)日：2002-06-18

申请号：US09098308

申请日：1998-06-16

申请人： Richard C. Pierson

发明人： Richard C. Pierson

IPC分类号： G11B509

CPC分类号： H03H11/0422 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009

摘要： An apparatus for filtering an input signal includes a first second order filter section having an output and an intermediate output, a second second order filter section having an input connected to the output of the first second order filter, and a gain stage coupling the output of the first second order filter section and the intermediate output of the first second order filter section to the output of the second second order filter section. The gain stage is coupled such that a transfer function between the output of the second second order filter section and the input of the second second order filter section is a biquadratic transfer function.

摘要翻译： 用于对输入信号进行滤波的装置包括具有输出和中间输出的第一二阶滤波器部分，具有连接到第一二阶滤波器的输出的输入的第二二阶滤波器部分，以及将第 第一二阶滤波器部分和第一二阶滤波器部分的中间输出到第二二阶滤波器部分的输出。 增益级耦合，使得第二二阶滤波器部分的输出与第二二阶滤波器部分的输入之间的传递函数是双向传递函数。