公开(公告)号：US20120223684A1

公开(公告)日：2012-09-06

申请号：US13355722

申请日：2012-01-23

申请人： Sang-Hoon LIM ,  Seung-Hyun An

发明人： Sang-Hoon LIM ,  Seung-Hyun An

IPC分类号： G05F1/10

CPC分类号： G05F1/563

摘要： A voltage regulator includes a power supply unit configured to generate a power supply voltage based on a reference voltage and a feedback voltage, configured to control a current level of a power supply line based on a first control signal, and configured to generate a driving signal based on a second control signal, the power supply voltage being provided to an external logic circuit through the power supply line, and the current level of the power supply line being additionally controlled outside the power supply unit based on the driving signal, and a feedback unit configured to generate the feedback voltage based on the power supply voltage, and configured to control a level of the feedback voltage based on a third control signal.

摘要翻译： 电压调节器包括：电源单元，被配置为基于参考电压和反馈电压产生电源电压，所述参考电压和反馈电压被配置为基于第一控制信号来控制电源线的电流水平，并且被配置为产生驱动信号 基于第二控制信号，通过电源线将电源电压提供给外部逻辑电路，并且基于驱动信号将电源线的电流额外控制在电源单元外部，并且反馈 其被配置为基于所述电源电压产生所述反馈电压，并且被配置为基于第三控制信号来控制所述反馈电压的电平。

公开(公告)号：US20120086282A1

公开(公告)日：2012-04-12

申请号：US13268144

申请日：2011-10-07

申请人： Seung-Won Lee

发明人： Seung-Won Lee

IPC分类号： H02J1/00

CPC分类号： G05F1/56 ,  G05F1/563 ,  G05F1/613 ,  G05F1/614 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  H02J50/80 ,  Y10T307/707

摘要： A smart card includes an internal voltage generator, a clock generator, and an internal circuit. The internal voltage generator generates a first internal voltage and a second internal voltage based on an input voltage received through an antenna. A level of the second internal voltage is lower than a level of the first internal voltage. The clock generator receives the first internal voltage and the second internal voltage to generate a clock signal. A frequency of the clock signal is changed according to the level of the first internal voltage. The internal circuit operates based on the clock signal and the second internal voltage.

摘要翻译： 智能卡包括内部电压发生器，时钟发生器和内部电路。 内部电压发生器基于通过天线接收的输入电压产生第一内部电压和第二内部电压。 第二内部电压的电平低于第一内部电压的电平。 时钟发生器接收第一内部电压和第二内部电压以产生时钟信号。 时钟信号的频率根据第一内部电压的电平而改变。 内部电路基于时钟信号和第二内部电压进行工作。

公开(公告)号：US20120013320A1

公开(公告)日：2012-01-19

申请号：US12838301

申请日：2010-07-16

申请人： Brian Moane

发明人： Brian Moane

IPC分类号： G05F1/10

CPC分类号： G05F1/563

摘要： A voltage regulator receives an unregulated DC input voltage supply and provides a regulated DC output voltage. A primary pass element and an external resistor are located in a primary current path through which a load current flows from the input terminal to the output terminal. The voltage regulator includes two control circuits that control the impedances of two pass elements. Power dissipation can be improved and the dropout voltage can be reduced by maintaining the voltage on an internal node of the voltage regulator.

摘要翻译： 电压调节器接收未调节的直流输入电压电源，并提供稳压的直流输出电压。 主要通过元件和外部电阻器位于初级电流路径中，负载电流通过该电流路径从输入端子流到输出端子。 电压调节器包括控制两个通过元件的阻抗的两个控制电路。 可以通过维持电压调节器的内部节点上的电压来提高功耗并降低压差。

公开(公告)号：US20110031946A1

公开(公告)日：2011-02-10

申请号：US12535191

申请日：2009-08-04

申请人： Patrick K. Egan ,  Jordan R. Keuseman ,  Michael L. Miller

发明人： Patrick K. Egan ,  Jordan R. Keuseman ,  Michael L. Miller

IPC分类号： G05F1/10

CPC分类号： G05F1/563

摘要： A power regulation circuit includes at least a first regulator connected to a second regulator in series forming a first regulator pair and a third regulator connected to a fourth regulator in series forming a second regulator pair. The first regulator pair is connected in parallel with the second regulator pair. Each individual regulator is configured to separately regulate an input voltage to a predetermined regulated output voltage. The second regulator pair regulates the input voltage if a short condition occurs within the first regulator pair and the second and fourth regulators each regulate the input voltage if an open condition occurs within the first or third regulator respectively.

摘要翻译： 功率调节电路至少包括连接到第二调节器的第一调节器，其串联地形成第一调节器对，以及连接到串联形成第二调节器对的第四调节器的第三调节器。 第一调节器对与第二调节器对并联。 每个单独的调节器被配置为分别地将输入电压调节到预定的调节输出电压。 如果在第一稳压器对内发生短路状态，则第二稳压器对调节输入电压，而第二和第四调节器分别在第一或第三稳压器内分别发生开路状态时调节输入电压。

公开(公告)号：US20100141223A1

公开(公告)日：2010-06-10

申请号：US12330926

申请日：2008-12-09

申请人： Sameer Wadhwa

发明人： Sameer Wadhwa

IPC分类号： G05F1/00

CPC分类号： G05F1/563 ,  G05F1/56 ,  G05F1/575

摘要： A low drop-out (LDO) voltage regulator with a wide bandwidth power supply rejection ratio (PSRR) is described. In one aspect, the LDO voltage regulator includes two individual voltage regulator circuit stages. A first stage voltage regulator circuit output is at an intermediate voltage (VINT) between an input supply voltage (VDD) and a final regulated output voltage (VREG). A second stage voltage regulator circuit output is at the final regulated output voltage (VREG) and is optimized for noise-sensitive analog circuits across a wide operating bandwidth. The first stage voltage regulator circuit has a zero frequency while the second stage voltage regulator circuit has a matching pole frequency to minimize the AC response from VDD to VREG across all frequencies.

摘要翻译： 描述了具有宽带宽电源抑制比（PSRR）的低压差（LDO）稳压器。 在一个方面，LDO电压调节器包括两个单独的电压调节器电路级。 第一级稳压器电路输出处于输入电源电压（VDD）和最终调节输出电压（VREG）之间的中间电压（VINT）。 第二级稳压器电路输出处于最终稳压输出电压（VREG），并针对宽工作带宽的噪声敏感模拟电路进行了优化。 第一级电压调节器电路具有零频率，而第二级稳压器电路具有匹配的极点频率，以使从VDD到所有频率的VREG的AC响应最小化。

公开(公告)号：US20090302812A1

公开(公告)日：2009-12-10

申请号：US12133908

申请日：2008-06-05

申请人： Joseph Shor ,  Adam Zaidel ,  Noam Familia

发明人： Joseph Shor ,  Adam Zaidel ,  Noam Familia

IPC分类号： G05F1/613

CPC分类号： G05F1/563

摘要： In general, in one aspect, the disclosure describes a voltage regulator (VR) that includes a first amplifier receiving a first reference voltage and a feedback voltage as inputs. A second amplifier receiving a second reference voltage and an output of the first amplifier as inputs. A drive component (e.g., transistor(s)) coupled to the second amplifier to drive current to an output based on an output of the second amplifier. A shunt component (e.g., transistor(s)) coupled to the first amplifier to shunt current from the output based on the output of the first amplifier. Current variations in the shunt component are controlled.

摘要翻译： 通常，在一方面，本公开描述了一种电压调节器（VR），其包括接收第一参考电压的第一放大器和作为输入的反馈电压。 接收第二参考电压的第二放大器和第一放大器的输出作为输入。 耦合到第二放大器的驱动组件（例如，晶体管），以基于第二放大器的输出将电流驱动到输出。 耦合到第一放大器的分路组件（例如，晶体管），以基于第一放大器的输出从输出分流电流。 分流元件的电流变化受到控制。

公开(公告)号：US20090284309A1

公开(公告)日：2009-11-19

申请号：US12435780

申请日：2009-05-05

申请人： Ryohei FURUYA ,  Yoji Idei

发明人： Ryohei FURUYA ,  Yoji Idei

IPC分类号： G05F1/10

CPC分类号： G05F1/563

摘要： A device includes an N-channel transistor for output, a voltage raising circuit, a voltage dropping circuit, and an amplifier. A power supply voltage that is a first voltage is supplied to one end of the output N-channel transistor, and the other end of the output N-channel transistor functions as an output terminal. The voltage raising circuit raises the first voltage to generate a second voltage higher than the first voltage. The voltage dropping circuit reduces the second voltage to generate a third voltage that is higher than the first voltage and is lower than the second voltage. The amplifier amplifies the difference between a reference voltage and a voltage generated at the output terminal, using the third voltage as a power supply voltage, to generate a fourth voltage, and supplies the fourth voltage to the gate of the N-channel transistor for output.

摘要翻译： 一种器件包括用于输出的N沟道晶体管，升压电路，降压电路和放大器。 作为第一电压的电源电压被提供给输出N沟道晶体管的一端，输出N沟道晶体管的另一端用作输出端子。 升压电路升高第一电压以产生高于第一电压的第二电压。 降压电路降低第二电压以产生比第一电压高的第三电压并且低于第二电压。 该放大器利用第三电压作为电源电压来放大参考电压和在输出端产生的电压之间的差，以产生第四电压，并将第四电压提供给N沟道晶体管的栅极用于输出 。

公开(公告)号：US20090278517A1

公开(公告)日：2009-11-12

申请号：US12118773

申请日：2008-05-12

申请人： Bendik Kleveland

发明人： Bendik Kleveland

IPC分类号： G05F1/563

CPC分类号： G05F1/563 ,  H02M3/1584 ,  H02M2001/0032 ,  H02M2001/0045 ,  Y02B70/16

摘要： A voltage regulator device and accompanying methods are provided for providing efficient voltage regulation to an electronic device. Efficient regulator 400 receives an input voltage on VIN from a battery or some other power supply at node VIN and supplies a stable regulated voltage to load device 404 at node VOUT. Load device 404 pulls different amounts of current and requires different degrees of tolerance on the voltage at VOUT depending upon its operating conditions. Data collection and control circuit 401 is capable of enabling and disabling regulator 402 and regulator 403. Data collection and control circuit 401 is also capable of measuring certain performance parameters associated with load device 404 and the operating conditions of load device 404. Data collection and control circuit 401 enables regulator 402 if said operating conditions are such that when data collection and control circuit 401 enables regulator 403 the performance parameters associated with load 404 are below a predefined standard.

摘要翻译： 提供了一种电压调节器装置和附带的方法，用于向电子设备提供有效的电压调节。 高效调节器400从节点VIN处的电池或其他电源接收VIN上的输入电压，并在节点VOUT向负载装置404提供稳定的调节电压。 负载装置404拉动不同量的电流，并且根据其工作条件对VOUT上的电压需要不同程度的容差。 数据收集和控制电路401能够启用和禁用调节器402和调节器403.数据收集和控制电路401还能够测量与负载设备404相关联的某些性能参数和负载设备404的操作条件。数据收集和控制 如果所述操作条件使得当数据收集和控制电路401启用调节器403时，与加载404相关联的性能参数低于预定标准，则电路401使得调节器402能够启用调节器402。

公开(公告)号：US5541499A

公开(公告)日：1996-07-30

申请号：US240488

申请日：1994-05-10

申请人： Dominique Villard

发明人： Dominique Villard

IPC分类号： H02H3/08 ,  G05F1/563 ,  H02H1/06 ,  G05F1/40

CPC分类号： G05F1/563 ,  H02H1/066

摘要： The power supply control device comprises two regulating modes, linear regulation and chopping regulation. A current from a sensor, rectified by diodes, supplies a power supply circuit comprising a storage capacitor and a regulating transistor. A resistor and a control circuit measure the value of the current and select the regulating mode via a selector. If the current is lower than a preset threshold regulation is linear, the base of the transistor is connected to a Zener diode. When the current exceeds a preset threshold regulation is chopped and the base of the transistor is connected to the output of a comparator.

摘要翻译： 电源控制装置包括线性调节和斩波调节两种调节模式。 由二极管整流的传感器的电流供给包括存储电容器和调节晶体管的电源电路。 电阻和控制电路测量电流值，并通过选择器选择调节模式。 如果电流低于预设的阈值调节是线性的，则晶体管的基极连接到齐纳二极管。 当电流超过预设阈值调节时，晶体管的基极连接到比较器的输出。

公开(公告)号：US5177676A

公开(公告)日：1993-01-05

申请号：US768363

申请日：1991-09-27

申请人： Haroon Inam ,  Robert W. Johnson, Jr.

发明人： Haroon Inam ,  Robert W. Johnson, Jr.

IPC分类号： G05F1/563 ,  H02M3/156

CPC分类号： G05F1/563 ,  H02M3/156 ,  H02M2001/0022

摘要： A voltage source having a current feedback control loop for enhanced source impedance control of the output of the voltage source. Current feedback is used for a voltage-source amplifier wherein the source impedance is increased/decreased and/or reshaped by the voltage source amplifier's closed-loop gain and the additional current feedback. In particular, the enhanced source impedance control is accomplished through feedback of the output current of the voltage source to an analog error amplifier at an input to the voltage control loop. The output impedance Z.sub.desired is then adjusted in accordance with the equation Z.sub.desired =Z.sub.inv1 {1+G(s) H(s)}, where G(s) is the voltage source amplifier's closed-loop transfer function, H(s) is the transfer function of the output current feedback circuit and Z.sub.inv1 is the original source impedance of the voltage controlled voltage amplifier. Thus, once G(s) is defined, H(s) may be defined simply as the combined impedance of the output current feedback circuit. Impedance of this output current feedback circuit may then be altered until the source impedance of the circuit causes the voltage generating circuit to provide an output impedance which corresponds to the desired output impedance.

摘要翻译： 具有用于增强电压源的输出的源阻抗控制的电流反馈控制回路的电压源。 电流反馈用于电压源放大器，其中通过电压源放大器的闭环增益和附加电流反馈增加/减少和/或重构源阻抗。 特别地，通过在电压控制回路的输入处将电压源的输出电流反馈到模拟误差放大器来实现增强的源阻抗控制。 然后根据公式Zdesired = Zinv1 {1 + G（s）H（s）}调整输出阻抗Zdesired，其中G（s）是电压源放大器的闭环传递函数，H（s）是 输出电流反馈电路的传递函数和Zinv1是压控电压放大器的原始源阻抗。 因此，一旦定义了G（s），H（s）可以被简单地定义为输出电流反馈电路的组合阻抗。 然后可以改变该输出电流反馈电路的阻抗，直到电路的源阻抗使得电压产生电路提供对应于期望的输出阻抗的输出阻抗。