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公开(公告)号：US10069409B2
公开(公告)日：2018-09-04
申请号：US15263466
申请日：2016-09-13
摘要： A distributed voltage regulator includes multiple micro-regulators disposed in a corresponding set of circuit sectors of an integrated circuit. Each micro-regulator provides current to the corresponding circuit sector at a current injection point. The regulator also includes a control module configured to receive feedback signals corresponding to a one or more sense points within each circuit sector and provide a control signal to each micro-regulator. The control module limits load-sharing imbalance within the plurality of micro-regulators. A voltage regulator with multiple sense points includes a micro-regulator that provides current at a current injection point, and a control module that receives feedback signals corresponding to a plurality of sense points and provides a control signal to the micro-regulator. The micro-regulator may comprise a charge pump that provides a local reference voltage that enables the micro-regulator to suppress local voltage drooping during feedback transitions (e.g., while switching between different feedback signals).
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公开(公告)号：US20150054575A1
公开(公告)日：2015-02-26
申请号：US14502228
申请日：2014-09-30
IPC分类号： G05F1/10
摘要： A system and method to regulate voltage on a chip are described. The system includes a central controller to output a digital code based on a voltage measurement from a sense point on a power grid of the chip. The system also includes a plurality of micro-regulators, each of the plurality of micro-regulators outputting a respective voltage to the power grid based on the digital code.
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公开(公告)号：US20150054572A1
公开(公告)日：2015-02-26
申请号：US14501587
申请日：2014-09-30
IPC分类号： H02M3/07
CPC分类号： G01R19/0023 , G05F1/00 , G06F1/26 , G06F1/30 , H02M3/07
摘要： A method for operating a charge pump that supplies switching current for a plurality of transistors includes a capacitor generating a pumped voltage. A comparator generates a pump control signal for turning on and off charging of the pump capacitor based on a difference between a comparison voltage and a reference voltage. A direct voltage sensor receives a feedback signal reflecting the pumped voltage and generates the comparison voltage in response to the feedback signal. The sensor includes a sensor resistor, a current source configured to drive a sensor current through the sensor resistor, and a differential op-amp that drives the sensor current to cause the voltage drop across the sensor resistor to remain constant as the pumped voltage experiences the voltage drop. The charge pump may include two similar direct voltage sensor controlling positive and negative pumped voltages.
摘要翻译： 用于操作为多个晶体管提供开关电流的电荷泵的操作方法包括产生泵浦电压的电容器。 比较器基于比较电压和参考电压之间的差产生用于打开和关闭泵电容器的充电的泵控制信号。 直接电压传感器接收反映泵浦电压的反馈信号，并响应于反馈信号产生比较电压。 该传感器包括一个传感器电阻器，一个电流源，用于驱动传感器电流通过传感器电阻器;以及差分运算放大器，驱动传感器电流，导致传感器电阻上的电压降保持不变，因为泵浦电压经历 电压下降。 电荷泵可以包括两个相似的直接电压传感器来控制正和负的泵浦电压。
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公开(公告)号：US10601216B2
公开(公告)日：2020-03-24
申请号：US15380004
申请日：2016-12-15
IPC分类号： H02H3/20 , H03K17/0812 , H03K17/693
摘要： An analog multiplexer includes a plurality of voltage-protecting transmission gate circuits to select an input voltage signal among different input signals. Each voltage-protecting transmission gate circuit includes a pass gate pFET interconnected between an input pFET and an output pFET, as well as a parallel pass gate nFET. The pFET includes a first source/drain connected in series with the input pFET. A second source/drain is connected in series with the output pFET. A pFET gate receives a gate select signal that operates the transmission gate circuit in a blocking mode, a first passing mode, or a second passing mode. The nFET includes a first nFET source/drain connected to the input pFET to form a main input terminal that receives the input voltage signal. A second nFET source/drain is connected to the output pFET to form a main output terminal that outputs an output voltage based on the operating mode.
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公开(公告)号：US20180175608A1
公开(公告)日：2018-06-21
申请号：US15380004
申请日：2016-12-15
IPC分类号： H02H3/20 , H03K17/687
CPC分类号： H02H3/20 , H03K17/08122 , H03K17/693 , H03K2217/0054
摘要： An analog multiplexer includes a plurality of voltage-protecting transmission gate circuits to select an input voltage signal among different input signals. Each voltage-protecting transmission gate circuit includes a pass gate pFET interconnected between an input pFET and an output pFET, as well as a parallel pass gate nFET. The pFET includes a first source/drain connected in series with the input pFET. A second source/drain is connected in series with the output pFET. A pFET gate receives a gate select signal that operates the transmission gate circuit in a blocking mode, a first passing mode, or a second passing mode. The nFET includes a first nFET source/drain connected to the input pFET to form a main input terminal that receives the input voltage signal. A second nFET source/drain is connected to the output pFET to form a main output terminal that outputs an output voltage based on the operating mode.
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公开(公告)号：US20180076708A1
公开(公告)日：2018-03-15
申请号：US15263466
申请日：2016-09-13
IPC分类号： H02M3/07
摘要： A distributed voltage regulator includes multiple micro-regulators disposed in a corresponding set of circuit sectors of an integrated circuit. Each micro-regulator provides current to the corresponding circuit sector at a current injection point. The regulator also includes a control module configured to receive feedback signals corresponding to a one or more sense points within each circuit sector and provide a control signal to each micro-regulator. The control module limits load-sharing imbalance within the plurality of micro-regulators. A voltage regulator with multiple sense points includes a micro-regulator that provides current at a current injection point, and a control module that receives feedback signals corresponding to a plurality of sense points and provides a control signal to the micro-regulator. The micro-regulator may comprise a charge pump that provides a local reference voltage that enables the micro-regulator to suppress local voltage drooping during feedback transitions (e.g., while switching between different feedback signals).
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公开(公告)号：US09882552B2
公开(公告)日：2018-01-30
申请号：US14866529
申请日：2015-09-25
CPC分类号： H03K5/02 , H02M3/07 , H03F3/45179 , H03F2203/45116 , H03L7/0896 , H03L7/093 , H03L7/099
摘要： A phase-locked loop (PLL) circuit, sense amplifier circuit, and method of operating a sense amplifier circuit are disclosed. The sense amplifier circuit comprises first and second operational amplifiers, each operational amplifier respectively comprising a non-inverting input terminal, an inverting input terminal, and an output stage comprising a current gating circuit having two current gating input terminals, the output stage coupled with an output terminal, the output terminal providing a feedback signal to the inverting input terminal. The input voltage signal is received across the non-inverting input terminals of the first and second operational amplifiers, and is received across the two current gating input terminals of each of the first and second operational amplifiers, wherein the sense amplifier circuit generates a sense voltage signal across the output terminals of the first and second operational amplifiers.
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公开(公告)号：US20180115238A1
公开(公告)日：2018-04-26
申请号：US15334385
申请日：2016-10-26
IPC分类号： H02M3/07
摘要： An apparatus for providing a local reference voltage for a voltage regulator includes a reference capacitor configured to provide the local reference voltage, a charge pump configured to push current to, or pull current from, the reference capacitor according to one or more control inputs received by the charge pump, and a boosting circuit configured to add or subtract a discrete quantity of charge to the reference capacitor according to one or more boosting control signals. A boosting control circuit may be configured to disconnect a boosting capacitor from the reference capacitor during a first phase of a control cycle and connect the boosting capacitor to the reference capacitor during a second phase of the control cycle. The boosting capacitor may be pre-charged (to add charge) or discharged (to subtract charge) during the first phase of the control cycle. A corresponding method is also disclosed herein.
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公开(公告)号：US20150054574A1
公开(公告)日：2015-02-26
申请号：US13974130
申请日：2013-08-23
IPC分类号： G05F1/46
摘要： A system and method to regulate voltage on a chip are described. The system includes a central controller to output a digital code based on a voltage measurement from a sense point on a power grid of the chip. The system also includes a plurality of micro-regulators, each of the plurality of micro-regulators outputting a respective voltage to the power grid based on the digital code.
摘要翻译： 描述了一种调节芯片电压的系统和方法。 该系统包括中央控制器，用于基于来自芯片的电网上的感测点的电压测量输出数字代码。 该系统还包括多个微调节器，多个微调节器中的每一个基于数字代码向电网输出相应的电压。
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公开(公告)号：US20150054493A1
公开(公告)日：2015-02-26
申请号：US13975904
申请日：2013-08-26
IPC分类号： G01R19/00
CPC分类号： G01R19/0023 , G05F1/00 , G06F1/26 , G06F1/30 , H02M3/07
摘要： Embodiments relate to a direct voltage sensor and a charge pump system for a computer system. A charge pump that supplies switching current for a plurality of transistors includes a capacitor generating a pumped voltage. A comparator generates a pump control signal for turning on and off charging of the pump capacitor based on a difference between a comparison voltage and a reference voltage. A direct voltage sensor receives a feedback signal reflecting the pumped voltage and generates the comparison voltage in response to the feedback signal. The sensor includes a sensor resistor, a current source configured to drive a sensor current through the sensor resistor, and a differential op-amp that drives the sensor current to cause the voltage drop across the sensor resistor to remain constant as the pumped voltage experiences the voltage drop. The charge pump may include two similar direct voltage sensor controlling positive and negative pumped voltages.
摘要翻译： 实施例涉及用于计算机系统的直流电压传感器和电荷泵系统。 提供多个晶体管的开关电流的电荷泵包括产生泵浦电压的电容器。 比较器基于比较电压和参考电压之间的差产生用于打开和关闭泵电容器的充电的泵控制信号。 直接电压传感器接收反映泵浦电压的反馈信号，并响应于反馈信号产生比较电压。 该传感器包括一个传感器电阻器，一个电流源，用于驱动传感器电流通过传感器电阻器;以及差分运算放大器，驱动传感器电流，导致传感器电阻上的电压降保持不变，因为泵浦电压经历 电压下降。 电荷泵可以包括两个相似的直接电压传感器来控制正和负的泵浦电压。
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