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1. 发明授权

US07919955B2 Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators 有权
标题翻译：多阈值多增益有源瞬态响应电路和数字多相脉宽调制调节器的方法
公开(公告)号：US07919955B2
公开(公告)日：2011-04-05
申请号：US12490071
申请日：2009-06-23
申请人： Benjamim Tang , Robert T. Carroll , Scott W. Southwell
发明人： Benjamim Tang , Robert T. Carroll , Scott W. Southwell
IPC分类号： G05F1/613
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.
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。

2. 发明授权

US08134354B2 Active transient response circuits, system and method for digital multiphase pulse width modulated regulators 有权
标题翻译：有源瞬态响应电路，数字多相脉宽调制调节器的系统和方法
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。

3. 发明授权

US07262628B2 Digital calibration with lossless current sensing in a multiphase switched power converter 有权
标题翻译：在多相开关电源转换器中进行无损耗电流检测的数字校准
公开(公告)号：US07262628B2
公开(公告)日：2007-08-28
申请号：US10884840
申请日：2004-07-02
申请人： Scott Wilson Southwell , Benjamim Tang , Robert T. Carroll , Steven Joseph Schulte
发明人： Scott Wilson Southwell , Benjamim Tang , Robert T. Carroll , Steven Joseph Schulte
IPC分类号： G01R31/26 , G01R35/00 , G01R27/00
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： Disclosed is a multi-phase power regulator that accurately senses current at a load in a lossless manner and adjusts the power supplied to the load based on the sensed current. Also disclosed is a method of calibrating a multiphase voltage regulator by applying a known calibration current at the load and determining actual current values by the difference in measured values between when the known calibration current is applied and when it is not applied. The accurate current is determined at a known temperature and accurate temperature compensation is provided by a non-linear digital technique. Each phase of the multi-phase power regulator is individually calibrated so that balanced channels provide accurate power to the load. Also disclosed is a calibration method with minimal noise generation.
摘要翻译：公开了一种多相功率调节器，其以无损耗的方式精确地感测负载处的电流，并且基于感测的电流来调节提供给负载的功率。还公开了一种通过在负载处施加已知的校准电流并且通过施加已知校准电流之间的测量值和当不施加已知校准电流时的测量值的差来确定实际电流值来校准多相电压调节器的方法。在已知温度下确定精确电流，并通过非线性数字技术提供精确的温度补偿。单相校准多相功率调节器的每相，以便平衡通道为负载提供精确的功率。还公开了一种具有最小噪声产生的校准方法。

4. 发明申请

US20120200274A1 MULTIPHASE POWER REGULATOR WITH ACTIVE TRANSIENT RESPONSE CIRCUITRY 有权
标题翻译：具有主动瞬态响应电路的多相功率调节器
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。

5. 发明授权

US08049482B2 Multi-threshold multi-gain active transient response circuit and method for digital multiphase pulse width modulated regulators 有权
公开(公告)号：US08049482B2
公开(公告)日：2011-11-01
申请号：US12969366
申请日：2010-12-15
申请人： Benjamim Tang , Robert T. Carroll , Scott Southwell
发明人： Benjamim Tang , Robert T. Carroll , Scott Southwell
IPC分类号： G05F1/575
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.

6. 发明申请

US20110084678A1 MULTI-THRESHOLD MULTI-GAIN ACTIVE TRANSIENT RESPONSE CIRCUIT AND METHOD FOR DIGITAL MULTIPHASE PULSE WIDTH MODULATED REGULATORS 有权
标题翻译：多阈值多增益活动瞬态响应电路和数字多相脉冲宽度调节调节器的方法
公开(公告)号：US20110084678A1
公开(公告)日：2011-04-14
申请号：US12969366
申请日：2010-12-15
申请人： BENJAMIM TANG , Robert T. Carroll , Scott Southwell
发明人： BENJAMIM TANG , Robert T. Carroll , Scott Southwell
IPC分类号： G05F1/46
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.
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的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。

7. 发明授权

US07492134B2 Multiphase power regulator with load adaptive phase control 有权
标题翻译：具有负载自适应相位控制功能的多相电源调节器
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。

8. 发明授权

US08193796B2 Multiphase power regulator with load adaptive phase control 有权
标题翻译：具有负载自适应相位控制功能的多相电源调节器
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。

9. 发明授权

US07960951B2 Digital calibration with lossless current sensing in a multiphase switched power converter 有权
标题翻译：在多相开关电源转换器中进行无损耗电流检测的数字校准
公开(公告)号：US07960951B2
公开(公告)日：2011-06-14
申请号：US11779487
申请日：2007-07-18
申请人： Scott Wilson Southwell , Benjamim Tang , Robert T. Carroll , Steven Joseph Schulte
发明人： Scott Wilson Southwell , Benjamim Tang , Robert T. Carroll , Steven Joseph Schulte
IPC分类号： G05F1/595
CPC分类号： H02M3/1584 , H02M2001/0009
摘要： Disclosed is a multi-phase power regulator that accurately senses current at a load in a lossless manner and adjusts the power supplied to the load based on the sensed current. Also disclosed is a method of calibrating a multiphase voltage regulator by applying a known calibration current at the load and determining actual current values by the difference in measured values between when the known calibration current is applied and when it is not applied. The accurate current is determined at a known temperature and accurate temperature compensation is provided by a non-linear digital technique. Each phase of the multi-phase power regulator is individually calibrated so that balanced channels provide accurate power to the load. Also disclosed is a calibration method with minimal noise generation.
摘要翻译：公开了一种多相功率调节器，其以无损耗的方式精确地感测负载处的电流，并且基于感测的电流来调节提供给负载的功率。还公开了一种通过在负载处施加已知的校准电流并且通过施加已知校准电流之间的测量值和当不施加已知校准电流时的测量值的差来确定实际电流值来校准多相电压调节器的方法。在已知温度下确定精确电流，并通过非线性数字技术提供精确的温度补偿。单相校准多相功率调节器的每相，以便平衡通道为负载提供精确的功率。还公开了一种具有最小噪声产生的校准方法。

10. 发明申请

US20090224731A1 MULTIPHASE POWER REGULATOR WITH LOAD ADAPTIVE PHASE CONTROL 有权
标题翻译：具有负载自适应相位控制的多相功率调节器
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。

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