公开(公告)号：US20230299668A1

公开(公告)日：2023-09-21

申请号：US18323304

申请日：2023-05-24

申请人： Apple Inc.

发明人： Sanjay Dabral ,  David A. Secker ,  Jun Zhai ,  Ralf M. Schmitt ,  Vidhya Ramachandran ,  Wenjie Mao

IPC分类号： H02M3/07 ,  G05F3/10 ,  H01L29/66 ,  H01L23/00 ,  H01L23/522

CPC分类号： H02M3/07 ,  G05F3/10 ,  H01L23/5223 ,  H01L23/5227 ,  H01L24/17 ,  H01L29/66181 ,  H01L2224/02379

摘要： Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.

公开(公告)号：US20220014095A1

公开(公告)日：2022-01-13

申请号：US17383983

申请日：2021-07-23

申请人： Apple Inc.

发明人： Sanjay Dabral ,  David A. Secker ,  Jun Zhai ,  Ralf M. Schmitt ,  Vidhya Ramachandran ,  Wenjie Mao

IPC分类号： H02M3/07 ,  G05F3/10 ,  H01L29/66 ,  H01L23/00 ,  H01L23/522

摘要： Power management systems are described. In an embodiment, a power management system includes a voltage source, a circuit load located within a chip, and a switched capacitor voltage regulator (SCVR) coupled to voltage source and the circuit load to receive an input voltage from the voltage source and supply an output voltage to the circuit load. The SCVR may include circuitry located within the chip and a discrete integrated passive device (IPD) connected to the chip.

公开(公告)号：US20200267018A1

公开(公告)日：2020-08-20

申请号：US16538975

申请日：2019-08-13

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Lokesh Kumar GUPTA ,  Basant BOTHRA

IPC分类号： H04L12/40 ,  H03K5/003 ,  H03K5/01 ,  H03K5/24 ,  G05F3/10 ,  H04B1/40

摘要： A system includes a controller area network (CAN) transceiver. The CAN transceiver includes a wake-up circuit having an attenuator circuit coupled to a CAN bus. The wake-up circuit also includes a common-gate amplifier circuit coupled to the attenuator circuit. The wake-up circuit also includes an offset generation circuit coupled to the common-gate amplifier circuit.

公开(公告)号：US10013013B1

公开(公告)日：2018-07-03

申请号：US15715519

申请日：2017-09-26

申请人： NXP B.V.

发明人： Klaas Wortel ,  Jan Inghels ,  Henri Verhoeven

IPC分类号： G05F3/30 ,  G05F3/10 ,  H03K5/003

CPC分类号： G05F3/10 ,  G05F3/30 ,  H03F3/45475 ,  H03F3/45995 ,  H03F2203/45048 ,  H03K5/003

摘要： One example discloses a voltage reference, including: a bandgap circuit core having a first intermediate bandgap voltage output, a second intermediate bandgap voltage output, and a bandgap voltage reference output; an amplifier having a first input, a second input, an input offset, an output, and an input_offset_trim; a trim controller; a switch matrix coupled between the bandgap circuit, the amplifier and the trim controller; wherein the switch matrix has a functional configuration and a calibration configuration; wherein in the functional configuration of the switch matrix, the first intermediate bandgap voltage output is coupled to the first input of the amplifier and the second intermediate bandgap voltage output is coupled to the second input of the amplifier; and wherein in response to the calibration configuration of the switch matrix, the trim controller is coupled to adjust the input offset of the amplifier using the input_offset_trim.

公开(公告)号：US20140368181A1

公开(公告)日：2014-12-18

申请号：US13917548

申请日：2013-06-13

申请人： Lawrence Livermore National Security, LLC

发明人： Richard F. Post

IPC分类号： H02P9/02 ,  G05F3/10

CPC分类号： H02N1/06 ,  H02N1/002 ,  Y10T307/406

摘要： A circuit-based technique enhances the power output of electrostatic generators employing an array of axially oriented rods or tubes or azimuthal corrugated metal surfaces for their electrodes. During generator operation, the peak voltage across the electrodes occurs at an azimuthal position that is intermediate between the position of minimum gap and maximum gap. If this position is also close to the azimuthal angle where the rate of change of capacity is a maximum, then the highest rf power output possible for a given maximum allowable voltage at the minimum gap can be attained. This rf power output is then coupled to the generator load through a coupling condenser that prevents suppression of the dc charging potential by conduction through the load. Optimized circuit values produce phase shifts in the rf output voltage that allow higher power output to occur at the same voltage limit at the minimum gap position.

摘要翻译： 基于电路的技术增强了使用轴向取向的棒或管的阵列或其电极的方位角波纹状金属表面的静电发生器的功率输出。 在发电机运行期间，电极两端的峰值电压发生在位于最小间隙位置和最大间隙之间的方位位置。 如果该位置也接近容量变化率最大的方位角，则可以获得在最小间隙处给定的最大允许电压的最高rf功率输出。 该rf功率输出然后通过耦合电容耦合到发电机负载，耦合电容通过负载传导阻止直流充电电位的抑制。 优化的电路值产生rf输出电压的相移，允许更高的功率输出在最小间隙位置的相同电压极限下发生。

公开(公告)号：US20140265553A1

公开(公告)日：2014-09-18

申请号：US13803996

申请日：2013-03-14

申请人： SERVICE SOLUTIONS U.S. LLC

发明人： Phillip MCGEE

IPC分类号： G05F3/10

CPC分类号： G05F3/10 ,  B60L11/1809 ,  H02J7/0031 ,  H02J7/345 ,  Y02T10/7072 ,  Y02T90/14 ,  Y02T90/16

摘要： A secondary power source system for a communication device includes a charging unit configured to receive a primary power input and restrict a current used for charging to a predetermined amount. The current is part of a first output of the charging unit. The system further includes a storage unit including a device that stores electrical energy, the storage unit configured to receive the first output from the charging unit with restricted current and generate a second output, a regulating unit configured to receive the second output from the storage unit and generate a third output, a selector unit configured to perform a logical OR operation with the primary power input, the first output from the charging unit and third output from the regulating unit, and to generate a fourth output, and a shutdown unit configured to shutdown operation of the secondary power system when the storage unit has been expended.

摘要翻译： 用于通信设备的辅助电源系统包括：充电单元，被配置为接收主电源输入并将用于充电的电流限制到预定量。 电流是充电单元的第一输出的一部分。 该系统还包括存储单元，该存储单元包括存储电能的装置，所述存储单元被配置成以受限电流接收来自充电单元的第一输出并产生第二输出;调节单元，被配置为从存储单元接收第二输出 并且生成第三输出，选择器单元，被配置为执行与所述主电源输入的逻辑或运算，来自所述充电单元的第一输出和来自所述调节单元的第三输出，以及生成第四输出，以及关闭单元，被配置为 当存储单元已经消耗时，二次电力系统的停机操作。

公开(公告)号：US20140002052A1

公开(公告)日：2014-01-02

申请号：US13540380

申请日：2012-07-02

申请人： Gregory L. Schaffer

发明人： Gregory L. Schaffer

IPC分类号： G05F3/10

CPC分类号： G05F3/30

摘要： A switched capacitor voltage reference including a single bias current source, three capacitors, diode devices, an amplifier and switching circuits for developing a temperature independent reference voltage. A single current source avoids having to match multiple current sources. A first capacitor and at least one diode device set a voltage having a negative temperature coefficient. A second capacitor and each of the diode devices set a voltage having a positive temperature coefficient. A third capacitor allows adjustable gain to enable a wide voltage range including a low voltage such as less than one volt. The switching circuits switch between multiple modes for developing and then combining the different temperature coefficient voltages. The topology allows a simple amplifier to be used. The topology is inherently accurate and does not require device trimming. An averaging method may be used to compensate for any mismatch between the diode devices.

摘要翻译： 开关电容器电压基准包括单个偏置电流源，三个电容器，二极管器件，用于开发独立于温度的参考电压的放大器和开关电路。 单个电流源避免了匹配多个电流源。 第一电容器和至少一个二极管器件设置具有负温度系数的电压。 第二电容器和每个二极管器件设置具有正温度系数的电压。 第三个电容器允许可调节的增益使得能够实现包括低电压（例如小于1伏）的宽电压范围。 开关电路在多种模式之间切换，用于开发，然后组合不同的温度系数电压。 该拓扑结构允许使用简单的放大器。 拓扑本质上是准确的，不需要设备修整。 可以使用平均方法来补偿二极管器件之间的任何不匹配。

公开(公告)号：US20130135039A1

公开(公告)日：2013-05-30

申请号：US13728349

申请日：2012-12-27

申请人： ELPIDA MEMORY, INC.

发明人： Koichiro HAYASHI

IPC分类号： G05F3/10

CPC分类号： G05F3/10 ,  G11C5/145 ,  G11C5/147 ,  G11C11/4074 ,  H02J1/10

摘要： To provide an internal power supply circuit that supplies a power supply voltage to an internal circuit of a semiconductor device via an internal power supply wiring, the internal power supply circuit includes a plurality of power supply units connected in common to the internal power supply wiring and an internal-power-supply control circuit that selects either activation or deactivation with regard to at least a part of the power supply units.

摘要翻译： 为了提供内部电源电路，其经由内部电源布线将电源电压提供给半导体器件的内部电路，内部电源电路包括多个与内部电源布线相连的电源单元， 内部电源控制电路，其选择关于至少一部分电力供应单元的激活或去激活。

公开(公告)号：US08125266B2

公开(公告)日：2012-02-28

申请号：US12576664

申请日：2009-10-09

申请人： Akiko Furuya ,  Yasuhiro Tonda

发明人： Akiko Furuya ,  Yasuhiro Tonda

IPC分类号： G05F3/10

CPC分类号： H02M3/07

摘要： A boosting circuit includes a charge pump circuit; and a power supply circuit configured to supply a power supply voltage to the charge pump circuit. The power supply circuit includes an N-channel transistor connected with a power supply terminal of the charge pump circuit; and a current control circuit configured to control current flowing between the N-channel transistor and the charge pump circuit through the power supply terminal.

摘要翻译： 升压电路包括电荷泵电路; 以及电源电路，被配置为向所述电荷泵电路提供电源电压。 电源电路包括与电荷泵电路的电源端子连接的N沟道晶体管; 以及电流控制电路，被配置为通过电源端子来控制在N沟道晶体管和电荷泵电路之间流动的电流。

公开(公告)号：US07642759B2

公开(公告)日：2010-01-05

申请号：US11827704

申请日：2007-07-13

申请人： Robert C. Dobkin

发明人： Robert C. Dobkin

IPC分类号： G05F3/10 ,  G05F1/567

CPC分类号： G05F1/46 ,  H02J1/10 ,  Y10S323/907 ,  Y10T307/565

摘要： Circuits and methods for paralleling voltage regulators are provided. Improved current sharing and regulation characteristics are obtained by coupling control terminals of the voltage regulators together which results in precise output voltages and proportional current production. Distributing current generation among multiple paralleled voltage regulators improves heat dissipation and thereby reduces the likelihood that the current produced by the voltage regulators will be temperature limited.

摘要翻译： 提供了并联稳压器的电路和方法。 通过将电压调节器的控制端子耦合在一起来获得改善的电流共享和调节特性，这导致精确的输出电压和成比例的电流产生。 在多个并联稳压器之间分配电流产生器可改善散热，从而降低由稳压器产生的电流将受到温度限制的可能性。