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    • 5. 发明授权
    • High speed voltage regulator with integrated loseless current sensing
    • 具有集成无电流电流检测功能的高速电压调节器
    • US08253405B2
    • 2012-08-28
    • US12347711
    • 2008-12-31
    • Malay TrivediJiang WilliamBrent D. ThomasJames T. DoyleRose Wang
    • Malay TrivediJiang WilliamBrent D. ThomasJames T. DoyleRose Wang
    • G05F1/00
    • G06F1/26
    • In general, in one aspect, the disclosure describes a high-speed multi-phase voltage regulator (VR) capable of sensing load current. For each phase leg, the VR includes a current mirror to mirror current in switching elements, a current sense to sense high side current in the current mirror, and a I-V converter to convert the sensed high side current to a voltage. The high side sensed current for each phase leg is averaged and the duty cycle for the VR is extracted. The average high side sensed current and the duty cycle are converted to digital by an A-D converter. Digital circuitry corrects the sensed current by adjusting for the gain and offset voltage of the VR. The adjusted sensed value is divided by the duty cycle to convert to load current and the average load current is multiplied by the number of phases operating to determine overall load current.
    • 通常,一方面,本公开描述了能够感测负载电流的高速多相电压调节器(VR)。 对于每个相支路,VR包括用于在开关元件中镜像电流的电流镜,用于感测电流镜中的高侧电流的电流感测,以及将感测到的高侧电流转换为电压的I-V转换器。 对每个相位支路的高侧检测电流进行平均,并提取VR的占空比。 平均高侧检测电流和占空比由A-D转换器转换为数字。 数字电路通过调整VR的增益和失调电压来校正感测电流。 调整后的感测值除以占空比转换为负载电流,平均负载电流乘以确定总负载电流的相位数。
    • 6. 发明申请
    • HIGH SPEED VOLTAGE REGULATOR WITH INTEGRATED LOSELESS CURRENT SENSING
    • 具有集成无电流电流传感的高速电压调节器
    • US20100164477A1
    • 2010-07-01
    • US12347711
    • 2008-12-31
    • Malay TrivediJiang WilliamBrent D. ThomasJames T. DoyleRose Wang
    • Malay TrivediJiang WilliamBrent D. ThomasJames T. DoyleRose Wang
    • G01R19/00G05F1/10
    • G06F1/26
    • In general, in one aspect, the disclosure describes a high-speed multi-phase voltage regulator (VR) capable of sensing load current. For each phase leg, the VR includes a current mirror to mirror current in switching elements, a current sense to sense high side current in the current mirror, and a I-V converter to convert the sensed high side current to a voltage. The high side sensed current for each phase leg is averaged and the duty cycle for the VR is extracted. The average high side sensed current and the duty cycle are converted to digital by an A-D converter. Digital circuitry corrects the sensed current by adjusting for the gain and offset voltage of the VR. The adjusted sensed value is divided by the duty cycle to convert to load current and the average load current is multiplied by the number of phases operating to determine overall load current.
    • 通常,一方面,本公开描述了能够感测负载电流的高速多相电压调节器(VR)。 对于每个相支路,VR包括用于在开关元件中镜像电流的电流镜,用于感测电流镜中的高侧电流的电流感测,以及将感测到的高侧电流转换为电压的I-V转换器。 对每个相位支路的高侧检测电流进行平均,并提取VR的占空比。 平均高侧检测电流和占空比由A-D转换器转换为数字。 数字电路通过调整VR的增益和失调电压来校正感测电流。 调整后的感测值除以占空比转换为负载电流,平均负载电流乘以确定总负载电流的相位数。
    • 10. 发明授权
    • Digitally controlled voltage regulator
    • 数字电压调节器
    • US07023672B2
    • 2006-04-04
    • US10358066
    • 2003-02-03
    • John Ryan GoodfellowRobert T. CarrollMalay TrivediErik McShaneKevin Mori
    • John Ryan GoodfellowRobert T. CarrollMalay TrivediErik McShaneKevin Mori
    • H02H3/22
    • H02M3/1584H02M3/157H02M3/1588Y02B70/1466
    • Disclosed is a digitally controlled multi-phase voltage regulator system providing regulated power to electronic components that have variable power requirements. Power is supplied by one or more power integrated circuits (IC) each having a high side power switch controlled by pulse width modulated signals and a low side power switch. The power IC senses voltage at the load and has an on-chip current mirror for generating a current that is a ratio of current delivered to the load. The power IC also has current limiting and on-chip temperature sensing components. The voltage and current information is digitized and provided to a control integrated circuit (IC). The control IC receives this digitized information as well as user provided parameters and, in the regulation mode of operation, provides digitized pulse width modulated control signals to the power IC. In an active transient response mode of operation, the control IC provides signals to turn either the high side switches or low side switches ON. Fault detection circuitry identifies over voltage, under voltage, and excessive temperatures. All communications between the control IC and the power IC are digital providing high bandwidth, optimal control frequency response, noise immunity and efficient active transient response.
    • 公开了一种数字控制的多相电压调节器系统,为具有可变功率要求的电子元件提供稳压电源。 电源由一个或多个功率集成电路(IC)提供,每个功率集成电路均具有由脉冲宽度调制信号控制的高侧功率开关和低侧功率开关。 功率IC感测负载上的电压,并且具有用于产生作为传送到负载的电流的比率的电流的片上电流镜。 电源IC还具有电流限制和片上温度感测元件。 电压和电流信息被数字化并提供给控制集成电路(IC)。 控制IC接收该数字化信息以及用户提供的参数,并且在调节操作模式下,向功率IC提供数字化的脉宽调制控制信号。 在有效的瞬态响应操作模式中,控制IC提供信号以使高侧开关或低侧开关接通。 故障检测电路识别过电压,欠电压和过高的温度。 控制IC和电源IC之间的所有通信都是提供高带宽,最佳控制频率响应,抗噪声和有效的主动瞬态响应的数字。