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    SEMICONDUCTOR CIRCUIT AND AMPLIFIER CIRCUIT
    3.
    发明申请
    SEMICONDUCTOR CIRCUIT AND AMPLIFIER CIRCUIT 有权
    半导体电路和放大器电路

    公开(公告)号：US20150280663A1

    公开(公告)日：2015-10-01

    申请号：US14665374

    申请日：2015-03-23

    申请人： MegaChips Corporation

    发明人： Yuuki NISHIZAWA

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45076 ,  H03F1/14 ,  H03F3/45192 ,  H03F3/45475 ,  H03F3/45632 ,  H03F2200/135 ,  H03F2200/153 ,  H03F2203/45052 ,  H03F2203/45264

    摘要： An amplifier circuit outputs a control signal for controlling a control target circuit and receives input of a feedback signal from the control target circuit. The amplifier circuit and the control target circuit constitute a feedback loop that includes a plurality of poles. A semiconductor capacitive element is provided for phase compensation in the feedback loop. The amplifier circuit includes an output branch that includes a first transistor having a first current terminal from which the control signal is output and a second current terminal connected to a power supply potential, and a branch that is connected in parallel to the output branch and includes a cascode circuit. The cascode circuit includes a second transistor having third and fourth current terminals, and a third transistor having fifth and sixth current terminals. The fourth and fifth current terminals are connected to each other. The semiconductor capacitive element that obtains the Miller effect is connected between the control target circuit and the fourth and fifth current terminals.

    摘要翻译： 放大电路输出用于控制控制对象电路的控制信号，并接收来自控制对象电路的反馈信号的输入。 放大器电路和控制对象电路构成包括多个极的反馈回路。 在反馈回路中提供半导体电容元件用于相位补偿。 放大器电路包括输出支路，该输出支路包括第一晶体管，第一晶体管具有输出控制信号的第一电流端子和连接到电源电位的第二电流端子，以及与输出支路并联连接的支路， 一个共源共享电路。 共射共振电路包括具有第三和第四电流端子的第二晶体管，以及具有第五和第六电流端子的第三晶体管。 第四和第五电流端子彼此连接。 获得米勒效应的半导体电容元件连接在控制目标电路和第四和第五电流端子之间。

    VOLTAGE REGULATORS, AMPLIFIERS, MEMORY DEVICES AND METHODS
    4.
    发明申请
    VOLTAGE REGULATORS, AMPLIFIERS, MEMORY DEVICES AND METHODS 有权
    电压调节器，放大器，存储器件和方法

    公开(公告)号：US20140266447A1

    公开(公告)日：2014-09-18

    申请号：US14287381

    申请日：2014-05-27

    申请人： MICRON TECHNOLOGY, INC.

    发明人： DONG PAN

    IPC分类号： H03F3/45

    CPC分类号： H03F3/45071 ,  G11C5/147 ,  G11C7/06 ,  G11C7/065 ,  G11C7/12 ,  G11C11/4091 ,  G11C11/4097 ,  H03F3/45183 ,  H03F2203/45264

    摘要： Circuits, devices and methods are provided, such as an amplifier (e.g., a voltage regulator) that includes a feedback circuit that supplies negative feedback through a feedback path. One such feedback path includes a capacitance coupled in series with a “one-way” isolation circuit through which a feedback signal is coupled. The “one-way” isolation circuit my allow the feedback signal to be coupled from a “downstream” node, such as an output node, to an “upstream” node, such as a node at which an error signal is generated to provide negative feedback. However, the “one-way” isolation circuit may substantially prevent variations in the voltage at the upstream node from being coupled to the capacitance in the isolation circuit. As a result, the voltage at the upstream node may quickly change since charging and discharging of the capacitance responsive to voltage variations at the upstream node may be avoided.

    摘要翻译： 提供了电路，装置和方法，例如放大器（例如，电压调节器），其包括通过反馈路径提供负反馈的反馈电路。 一个这样的反馈路径包括与“单向”隔离电路串联耦合的电容，通过该电路耦合反馈信号。 “单向”隔离电路允许反馈信号从诸如输出节点的“下游”节点耦合到“上游”节点，例如产生错误信号以产生负值的节点 反馈。 然而，“单向”隔离电路可以基本上防止上游节点处的电压变化与隔离电路中的电容耦合。 结果，可以避免上游节点处的电压响应于上游节点处的电压变化而对电容进行充电和放电，所以上游节点处的电压可能快速变化。