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    • 5. 发明授权
    • Active transient response circuits, system and method for digital multiphase pulse width modulated regulators
    • 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
    • US08134354B2
    • 2012-03-13
    • US12396975
    • 2009-03-03
    • Benjamim TangRobert T. CarrollScott W. SouthwellKenneth A. OstromRichard C. Pierson
    • Benjamim TangRobert T. CarrollScott W. SouthwellKenneth A. OstromRichard C. Pierson
    • G05F1/59
    • H02M3/1584
    • 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.
    • 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。
    • 6. 发明授权
    • Active transient response circuits, system and method for digital multiphase pulse width modulated regulators
    • 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
    • US07521913B2
    • 2009-04-21
    • US11311115
    • 2005-12-19
    • Benjamim TangRobert T. CarrollScott Wilson SouthwellKenneth A. OstromRichard C. Pierson
    • Benjamim TangRobert T. CarrollScott Wilson SouthwellKenneth A. OstromRichard C. Pierson
    • G05F1/618
    • H02M3/1584
    • 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.
    • 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。
    • 7. 发明授权
    • Methods and apparatus for a power supply with sequentially-activated segmented power switch
    • 具有顺序启动的分段电源开关的电源的方法和装置
    • US08179109B2
    • 2012-05-15
    • US12043306
    • 2008-03-06
    • Benjamim TangKenneth A. OstromLaura Carpenter
    • Benjamim TangKenneth A. OstromLaura Carpenter
    • G05F1/613
    • H02M3/1584H03K17/164
    • Methods and apparatus for a power supply according various aspects of the present invention operate in conjunction with a voltage converter for converting an input voltage to an output voltage. For example, the converter may comprise a controller configured to generate a control signal and an integrated power stage. The power stage may include a segmented switch coupled in parallel between the input voltage and the output, and a driver circuit responsive to the controller and connected to the switches. The segmented switches may be parallel devices with separate gates, which may be activated independently. The driver circuit controls the switches according to the control signal to sequentially activate the switches in the switch circuit. For example, the driver circuit may activate a second switch following a predetermined period after activating a first switch, and the first switch and second switch may be activated sequentially and remain activated simultaneously.
    • 电源的方法和装置根据本发明的各个方面与用于将输入电压转换成输出电压的电压转换器一起工作。 例如,转换器可以包括被配置为产生控制信号和集成功率级的控制器。 功率级可以包括在输入电压和输出之间并联耦合的分段开关,以及响应于控制器并连接到开关的驱动器电路。 分段开关可以是具有单独门的并联装置,其可以独立地被激活。 驱动器电路根据控制信号控制开关,以顺序激活开关电路中的开关。 例如,驱动器电路可以在激活第一开关之后的预定时段之后激活第二开关,并且第一开关和第二开关可以被顺序地激活并且同时保持激活。
    • 9. 发明授权
    • Wideband regulator with fast transient suppression circuitry
    • 宽带稳压器,具有快速瞬态抑制电路
    • US06661212B2
    • 2003-12-09
    • US10338575
    • 2003-01-08
    • Kenneth A. Ostrom
    • Kenneth A. Ostrom
    • G05F140
    • G05F3/242G05F1/56H02M3/07
    • A wideband voltage regulator is configured to provide suppression of fast transients, which can include a boosting circuit and a sensing circuit. The boosting circuit can be suitably configured to boost the voltage regulator response, while the sensing circuit can determine when such a boost may be desired. Accordingly, the response of the voltage regulator can be accelerated to a fast load transient beyond the closed loop bandwidth limited response or the slew rate limited response of the voltage regulator. An exemplary voltage regulator can be configured with an active sensing circuit comprising a sensing amplifier with switch control outputs, and a boosting circuit comprising N stored charge sources, e.g.; boost capacitors, and (3N−1) switches that are configured to accelerate the voltage regulators response to a fast load transient beyond the closed loop bandwidth limited or slew rate limited response of the voltage regulator.
    • 宽带电压调节器被配置为提供对快速瞬变的抑制,其可以包括升压电路和感测电路。 升压电路可以适当地配置为升高电压调节器响应,而感测电路可以确定何时可能需要这种升压。 因此,电压调节器的响应可以加速到超过闭环带宽限制响应或电压调节器的转换速率限制响应的快速负载瞬态。 示例性电压调节器可以配置有主动感测电路,其包括具有开关控制输出的感测放大器,以及包括N个存储的电荷源的升压电路, 升压电容器和(3N-1)开关,其被配置为加速电压调节器对超过闭环带宽限制或压摆率限制的电压调节器响应的快速负载瞬态响应。