HYBRID CONTROL CIRCUIT AND METHOD
    1.
    发明申请
    HYBRID CONTROL CIRCUIT AND METHOD 有权
    混合控制电路和方法

    公开(公告)号:US20100238060A1

    公开(公告)日:2010-09-23

    申请号:US12721853

    申请日:2010-03-11

    IPC分类号: H03M1/12

    摘要: A hybrid control circuit and method combine analog circuit and digital circuit to generate digital PWM signals for a multiphase DC-DC converter to generate an output voltage. For current balance control, analog current error signals are generated by the analog circuit from analog phase current signals of the multiphase DC-DC converter and then converted into digital current error signals for calculating the duties of each phase of the multiphase DC-DC converter. Therefore, fewer bit devices can be used to achieve precise current balance control and the size and cost of the circuit can be reduced.

    摘要翻译: 混合控制电路和方法组合模拟电路和数字电路以产生用于多相DC-DC转换器的数字PWM信号以产生输出电压。 对于电流平衡控制,模拟电流误差信号由多相DC-DC转换器的模拟相电流信号由模拟电路产生,然后转换为数字电流误差信号,用于计算多相DC-DC转换器各相的占空比。 因此,可以使用较少的位器件来实现精确的电流平衡控制,并且可以减小电路的尺寸和成本。

    USING OFFSET CANCELLATION CIRCUIT TO MITIGATE BEAT-FREQUENCY OSCILLATION OF PHASE CURRENTS IN A MULTIPHASE INTERLEAVED VOLTAGE REGULATOR
    2.
    发明申请
    USING OFFSET CANCELLATION CIRCUIT TO MITIGATE BEAT-FREQUENCY OSCILLATION OF PHASE CURRENTS IN A MULTIPHASE INTERLEAVED VOLTAGE REGULATOR 有权
    使用偏移消除电路来减轻多相互相关电压调节器中相电流的频率振荡

    公开(公告)号:US20110187341A1

    公开(公告)日:2011-08-04

    申请号:US13018628

    申请日:2011-02-01

    IPC分类号: G05F1/618

    CPC分类号: G05F1/618

    摘要: For a multiphase interleaved voltage regulator, an offset cancellation circuit is applied for each phase separately. The current loop gain of each phase is thus increased to mitigate the beat-frequency oscillation in phase currents when the beat frequency is below the bandwidth of the low-pass filter in the offset cancellation circuit, without introducing additional instability issue that is the drawback of increasing current-sensing gain.

    摘要翻译: 对于多相交错电压调节器,分别对每个相应用偏移消除电路。 因此,当拍频在偏移消除电路中低于低通滤波器的带宽时,每相的电流环路增益被增加以减轻相电流中的节拍频率振荡,而不引入额外的不稳定性问题,这是缺点 增加电流检测增益。

    DYNAMIC GAIN CONTROLLER AND CONTROL METHOD FOR A CONTROL PLANT
    3.
    发明申请
    DYNAMIC GAIN CONTROLLER AND CONTROL METHOD FOR A CONTROL PLANT 审中-公开
    控制装置动态增益控制器及控制方法

    公开(公告)号:US20120041573A1

    公开(公告)日:2012-02-16

    申请号:US13190631

    申请日:2011-07-26

    IPC分类号: G05B13/02

    摘要: A dynamic gain controller for providing an adjust value for a control plant to control an output value of the control plant, detects an error value between a feedback value related to the output value and an input reference value, and compares the error value with a threshold to select a gain for amplifying the error value to generate the adjust value. The dynamic gain control will make the control plant to have a shorter settling time and a stable output value.

    摘要翻译: 一种动态增益控制器,用于为控制工厂提供调整值以控制控制装置的输出值,检测与输出值相关的反馈值与输入参考值之间的误差值,并将误差值与阈值进行比较 选择用于放大误差值的增益以生成调整值。 动态增益控制将使控制工厂具有较短的稳定时间和稳定的输出值。

    OPERATING PHASE NUMBER DEPENDENT COMPENSATION OF A MULTI-PHASE BUCK CONVERTER
    4.
    发明申请
    OPERATING PHASE NUMBER DEPENDENT COMPENSATION OF A MULTI-PHASE BUCK CONVERTER 失效
    多相BUCK转换器的运行相位数依赖性补偿

    公开(公告)号:US20110084673A1

    公开(公告)日:2011-04-14

    申请号:US12898910

    申请日:2010-10-06

    IPC分类号: G05F1/10

    摘要: A multi-phase buck converter has a digital compensator to select a set of compensation coefficients depending on the operating phase number of the multi-phase buck converter, or including different compensators for each operation phase number to improve the loop gain bandwidth, transient response and stability of the multi-phase buck converter. The multi-phase buck converter operates with more phase circuits for higher loading and operates with fewer phase circuits for lower loading. The compensation varies with the number of the operated phase circuits so to be adaptive to the operation condition with an optimized control-to-output voltage transfer function.

    摘要翻译: 多相降压转换器具有数字补偿器,用于根据多相降压转换器的工作相位数来选择一组补偿系数,或者包括用于每个运行相位数的不同补偿器,以改善环路增益带宽,瞬态响应和 多相降压转换器的稳定性。 多相降压转换器具有更多的相位电路,可实现更高的负载,并以更少的相位电路运行,以实现更低的负载。 补偿根据操作的相位电路的数量而变化,以便利用优化的控制输出电压传递函数适应于操作条件。