公开(公告)号：US09923468B2

公开(公告)日：2018-03-20

申请号：US14675455

申请日：2015-03-31

Applicant: Apple Inc.

Inventor： Rajarshi Paul ,  Parin Patel ,  Talbott M. Houk

IPC: H02M3/158 ,  H02M1/40 ,  H02M1/00 ,  H02M3/156

CPC classification number: H02M3/1584 ,  H02M1/40 ,  H02M3/158 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2003/1566 ,  Y02B70/16

Abstract: A power conversion circuit has multiple phases wherein each of the phases has an inductor coupled to a power switch circuit and is coupled to an output node. A power conversion controller controls the switching of one or more of the phases to yield a regulated voltage on the output node. The controller uses a variable inductor current limit for one or more designated phases, and temporarily increases the variable inductor current limit during a transient condition. Other embodiments are also described and claimed.

公开(公告)号：US20180039315A1

公开(公告)日：2018-02-08

申请号：US15464264

申请日：2017-03-20

Applicant: Apple Inc.

Inventor： Hung A. Pham ,  Parin Patel ,  Venu M. Duggineni

IPC: G06F1/32 ,  G06F1/16 ,  G06F3/01

CPC classification number: G06F1/3206 ,  G06F1/1694 ,  G06F1/3287 ,  G06F3/017 ,  G06F2200/1637 ,  Y02D10/171

Abstract: In some implementations, a mobile device can be configured with virtual motion fences that delineate domains of motion detectable by the mobile device. In some implementations, the mobile device can be configured to invoke an application or function when the mobile device enters or exits a motion domain (by crossing a motion fence). In some implementations, entering or exiting a motion domain can cause components of the mobile device to power on or off (or awaken or sleep) in an incremental manner.

公开(公告)号：US20180013347A1

公开(公告)日：2018-01-11

申请号：US15419259

申请日：2017-01-30

Applicant: Apple Inc.

Inventor： Rajarshi Paul ,  Parin Patel ,  Damon Lee ,  Evaldo Miranda, JR. ,  Mark A Yoshimoto ,  Jamie L. Langlinais

IPC: H02M3/158 ,  H02M1/084 ,  H02M1/14 ,  H02M1/00

CPC classification number: H02M3/1584 ,  H02M2003/1566

Abstract: A multi-phase switch mode, voltage regulator has a transient mode portion in which a phase control output is coupled to one or more control inputs of one or more switch circuits that conduct inductor current through one or more transient phase inductors, from amongst a number of phase inductors. A slew mode control circuit detects a high slope and then a low slope in the feedback voltage and, in between detection of the high slope and the low slope, pulses the phase control output of the transient mode portion so that the switch circuit that conducts transient phase inductor current adds power to, or sinks power from, the power supply output. Other embodiments are also described.

公开(公告)号：US09859057B2

公开(公告)日：2018-01-02

申请号：US14830598

申请日：2015-08-19

Applicant: Apple Inc.

Inventor： Gang Ning ,  Raul A. Perez ,  Parin Patel

IPC: H01G5/38 ,  H01G4/228 ,  H01G4/10 ,  H01G4/33 ,  H01G13/00 ,  H01G2/06 ,  H01G2/10 ,  H01G4/224 ,  H05K3/34 ,  H05K1/14 ,  H05K3/36

CPC classification number: H01G4/228 ,  H01G2/06 ,  H01G2/10 ,  H01G4/10 ,  H01G4/224 ,  H01G4/33 ,  H01G13/006 ,  H05K1/144 ,  H05K1/145 ,  H05K3/3447 ,  H05K3/366 ,  H05K2201/10015

Abstract: This application includes multiple embodiments related to capacitors. In some embodiments, capacitors are set forth as having terminal leads that extend in parallel and opposing axial directions. The embodiments discussed herein relate to a capacitor module including one or more anodized pellets for providing a charge storage within the capacitor module. The capacitor module can be configured as a surface mounted or non-surface mounted capacitor module. The capacitor module can include an array of anodized pellets arranged in multiple rows or columns of anodized pellets connected by conductive trace included in the capacitor module. In a non-surface mounted embodiment of the capacitor module, the capacitor module can include cathode and anode connections that are exclusively on the side surfaces of the capacitor module.

公开(公告)号：US09797784B2

公开(公告)日：2017-10-24

申请号：US13726503

申请日：2012-12-24

Applicant: Apple Inc.

Inventor： Parin Patel ,  Scott P. Mullins

IPC: G01K1/12 ,  G01K1/14 ,  G01K13/00 ,  G06F1/20 ,  G06F1/32 ,  H01M10/42 ,  H01M10/48 ,  A61K31/56 ,  G01N33/50 ,  H01M10/44

CPC classification number: G01K13/00 ,  A61K31/56 ,  G01N33/5041 ,  G01N2500/00 ,  G06F1/206 ,  G06F1/32 ,  G06F1/3206 ,  H01M10/425 ,  H01M10/443 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2010/4278 ,  Y02D10/16

Abstract: A power-management unit is described. This power-management unit allows a common signal line to communicate data between an integrated circuit (which may be external to the power-management unit) and a battery-monitoring mechanism in a battery pack, and to convey a signal that represents a temperature state of the battery pack to a temperature-monitoring circuit or mechanism that monitors the temperature state of the battery pack. In particular, the power-management unit may include a single-wire interface or a multiplexer that, at a given time, selectively couples the signal line from the battery pack either to the integrated circuit or the temperature-monitoring circuit based on a control signal provided by the integrated circuit (for example, via an I2C bus or interface). In this way, the power-management unit may reduce the number of signal lines needed to communicate with the battery-monitoring mechanism and to convey the signal.

公开(公告)号：US20170093276A1

公开(公告)日：2017-03-30

申请号：US14871062

申请日：2015-09-30

Applicant: Apple Inc.

Inventor： Rajarshi Paul ,  Parin Patel

IPC: H02M3/04

CPC classification number: H02M3/04 ,  H02M3/1584 ,  H02M7/493 ,  H02M7/53806 ,  H02M7/5381

Abstract: This disclosure relates to switch mode multiphase DC-DC voltage regulator circuits. In prior art regulators, for standard load transients, the worst voltage undershoot happens during a “zero to max,” i.e., “load step” operation. When the load is released, the inductor current ramps down, eventually crossing zero, where it is then held at a negative current limit (i.e., “NLIMIT”) by a Negative Current Limit Detector Circuit. However, if the next load step were to happen right at the instant when the inductor hits the negative current limit, it would take additional time recover to zero before it could catch up to the load step, thus causing additional voltage drop. Regulators disclosed herein comprise specialized zero crossing detection circuitry that intelligently prevents the inductor currents in one or more of the phases of the regulator from ramping below zero, thereby improving voltage droop in the system during fast positive load transients.

公开(公告)号：US09599519B2

公开(公告)日：2017-03-21

申请号：US13726506

申请日：2012-12-24

Applicant: Apple Inc.

Inventor： Parin Patel ,  Scott P. Mullins

IPC: H02J7/00 ,  G01K13/00 ,  G01K1/02

CPC classification number: G01K13/00 ,  G01K1/022 ,  H02J7/00 ,  H02J7/0004 ,  H02J7/0091

Abstract: The described embodiments include a power-management unit that receives and stores a representation of a temperature state of a battery pack from a battery-monitoring mechanism in a battery pack. For example, an interface circuit (such as a single-wire-interface or SWI circuit) may receive the information from the battery-monitoring mechanism via a signal line, and the information may be stored in a memory (such as a non-transitory computer-readable memory). This stored information is then used by a temperature-monitoring mechanism or circuit to determine the temperature state of the battery pack, which may be used to control or gate charging of a battery in the battery pack.

公开(公告)号：US20170019596A1

公开(公告)日：2017-01-19

申请号：US14798005

申请日：2015-07-13

Applicant: Apple Inc.

Inventor： Ryan J. Dunn ,  Damien J. Thivent ,  Morgan T. McClure ,  Parin Patel

IPC: H04N5/232

CPC classification number: H04N5/23241 ,  H04N5/23212 ,  H04N5/23245 ,  H04N5/2328 ,  H04N5/23293

Abstract: In a portable camera device, a variable voltage regulator produces a power supply voltage of a VCM driver circuit that conducts the coil current of a VCM actuator as part of an optical image stabilization (OIS) mechanism. A processor signals the variable voltage regulator to increase the power supply voltage when the camera device transitions from still capture mode or preview mode to video capture mode, where the increase causes an increase in stroke of the VCM OIS actuator. Other embodiments are also described and claimed.

Abstract translation: 在便携式照相机装置中，可变电压调节器产生VCM驱动器电路的电源电压，其作为光学图像稳定（OIS）机制的一部分传导VCM致动器的线圈电流。 当相机设备从静态捕捉模式或预览模式转换到视频捕获模式时，处理器发信号通知可变电压调节器以增加电源电压，其中增加导致VCM OIS执行器的行程增加。 还描述和要求保护其他实施例。

公开(公告)号：US09529403B2

公开(公告)日：2016-12-27

申请号：US14466205

申请日：2014-08-22

Applicant: Apple Inc.

Inventor： Manu Gulati ,  Parin Patel ,  Keith Cox ,  Derek Iwamoto ,  Cyril de la Cropte de Chanterac ,  Christopher J. Young

IPC: G06F1/32

CPC classification number: G06F1/3203 ,  G06F1/3296 ,  Y02D10/172

Abstract: A method and apparatus for providing telemetry for use in power control functions is disclosed. A system includes an integrated circuit (IC) having a first power management circuit. The IC also includes a number of functional circuit blocks within a number of different power domains. A second power management circuit is implemented external to the IC and includes a number of voltage regulators. Each of the power domains is coupled to receive power from one voltage regulators. During operation, the first power management circuit may send commands requesting the change of one or more voltages provided to the IC. The second power management circuit may respond by performing the requested voltage change(s), and may also provide telemetry data to the first power management circuit. The second power management circuit may also provide telemetry data responsive to receiving a no operation command from the first power management circuit.

Abstract translation: 公开了一种用于提供用于功率控制功能的遥测的方法和装置。 一种系统包括具有第一电源管理电路的集成电路（IC）。 IC还包括多个不同功率域内的多个功能电路块。 第二电源管理电路在IC外部实现并且包括多个电压调节器。 每个电源域被耦合以从一个电压调节器接收电力。 在操作期间，第一电源管理电路可以发送请求改变提供给IC的一个或多个电压的命令。 第二电力管理电路可以通过执行所请求的电压变化来响应，并且还可以向第一电力管理电路提供遥测数据。 第二电力管理电路还可以响应于从第一电力管理电路接收无操作命令来提供遥测数据。

公开(公告)号：US20160308438A1

公开(公告)日：2016-10-20

申请号：US15192600

申请日：2016-06-24

Applicant: Apple Inc.

Inventor： Rajarshi Paul ,  Parin Patel

IPC: H02M3/156 ,  H02M1/08

CPC classification number: H02M3/156 ,  H02M1/08 ,  H02M1/44 ,  H02M2001/0032 ,  Y02B70/16

Abstract: The switching frequency of a switch mode PFM power converter is compared with a predetermined frequency range that contains the operating frequency of a nearby clocked sub-system. In response to the switching frequency coming into the range, a parameter of the power converter is changed from an original value, so as to cause the switching frequency to go out of the range.

Abstract translation: 将开关模式PFM功率转换器的开关频率与包含附近计时子系统的工作频率的预定频率范围进行比较。 响应于开关频率进入该范围，功率转换器的参数从原始值改变，以使开关频率超出该范围。