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    • 3. 发明授权
    • Power supply switching at circuit block level to reduce integrated circuit input leakage currents
    • 电源切换电路块级降低集成电路输入漏电流
    • US07498845B1
    • 2009-03-03
    • US11880648
    • 2007-07-23
    • James T. Doyle
    • James T. Doyle
    • H03K19/096
    • H03K19/00346H03K19/0941
    • Leakage currents at IC inputs can be avoided while the IC is disabled by providing a switch that is responsive to deactivation of an enable input to isolate functional circuitry of the IC from one of the power supply nodes of the IC. This eliminates power supply current while the IC is disabled. Further unwanted current flow can be avoided while the IC is disabled by providing a switch that is responsive to the enable input for selectively connecting and disconnecting the base of a reference voltage transistor to and from the transistor's grounded collector, which collector is defined by the substrate of the IC. Disconnection of the base from the grounded substrate/collector eliminates base current and thus prevents emitter-to-collector current flow through the transistor when the IC is disabled.
    • 可以通过提供响应于使能输入的去激活而将IC与IC的电源节点之一隔离的开关来禁用IC来禁止IC输入端的泄漏电流。 这可以在IC禁用时消除电源电流。 通过提供响应于使能输入的开关来禁用IC,可以避免IC的不需要的电流流动,该开关用于选择性地将参考电压晶体管的基极连接到晶体管的接地集电极和从晶体管的接地集电极断开,该集电极由衬底 的IC。 基极与接地的基板/集电极的断开消除了基极电流,因此当IC被禁用时,防止发射极到集电极电流流过晶体管。
    • 8. 发明授权
    • Differential amplifier with lateral bipolar transistor
    • 带横向双极晶体管的差分放大器
    • US6081139A
    • 2000-06-27
    • US937907
    • 1997-09-25
    • Carl F. LiepoldJames T. Doyle
    • Carl F. LiepoldJames T. Doyle
    • H01L27/07H03F3/45H03K5/24H03K5/22H03K17/60
    • H03F3/45076H01L27/0722H03K5/2481
    • The present invention provides a differential amplifier. The differential amplifier includes first and second inputs and an output. The differential amplifier further includes a lateral bipolar transistor. The lateral bipolar transistor includes a well region that has a base region, an emitter region and first and second collector regions. The first and second collector regions are spaced apart from the emitter. The lateral bipolar transistor also includes a first gate, coupled to the first input, to overlay a space between the emitter region and the first collector region. Furthermore, the lateral bipolar transistor includes a second gate, coupled to the second input, to overlay a space between the emitter region and the second collector region. The differential amplifier further includes first and second load devices coupled to the first and second collector regions.
    • 本发明提供了一种差分放大器。 差分放大器包括第一和第二输入和输出。 差分放大器还包括横向双极晶体管。 横向双极晶体管包括具有基极区域,发射极区域以及第一和第二集电极区域的阱区域。 第一和第二集电极区域与发射极间隔开。 横向双极晶体管还包括耦合到第一输入的第一栅极,以覆盖发射极区域和第一集电极区域之间的空间。 此外,横向双极晶体管包括耦合到第二输入的第二栅极,以覆盖发射极区域和第二集电极区域之间的空间。 差分放大器还包括耦合到第一和第二集电极区域的第一和第二负载装置。
    • 9. 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。
    • 10. 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。