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公开(公告)号：US11695336B2
公开(公告)日：2023-07-04
申请号：US17343459
申请日：2021-06-09
Applicant: Apple Inc.
Inventor： Hao Zhou , Sarfraz Shaikh , Jay B. Fletcher , Sanjay Pant , Mark A. Yoshimoto , Vincenzo Bisogno , Shawn Searles
Abstract: A power management circuit included in a computer system regulates a voltage level of a power supply node used by other circuits in the computer system. The power management circuit includes a control circuit and multiple phase circuits coupled to the regulated power supply node via corresponding inductors. The control circuit selectively activates particular ones of the multiple phase circuits allowing them source respective currents to the regulated power supply node. The control circuit also selectively activates particular ones of other phase circuits that are external to the power management circuit and coupled to the regulated power supply node via their own corresponding inductors. Once activated, the external phase circuits source respective currents to the regulated power supply node via their corresponding inductors.
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公开(公告)号：US10778026B2
公开(公告)日：2020-09-15
申请号：US15455907
申请日：2017-03-10
Applicant: Apple Inc.
Inventor： Jamie L. Langlinais , Mark A. Yoshimoto
Abstract: A battery charger has at least two phases and coupled switches that are controlled using switch mode power supply (SMPS) techniques. One of the phases is part of a buck-boost circuit that includes a high side switch, which is coupled between a near end of the phase and the input, and a low side switch that is coupled between a far end of the phase and ground. The far end of the phase is also coupled to a battery, through a further high side switch. A controller signals the switches into open and closed states so that the buck-boost circuit is operated in buck mode when charging the battery at a low voltage, and in boost mode when charging the battery at a high voltage. Other embodiments are also described and claimed.
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公开(公告)号：US10128755B2
公开(公告)日：2018-11-13
申请号：US15627082
申请日：2017-06-19
Applicant: Apple Inc.
Inventor： Rajarshi Paul , Parin Patel , Damon Lee , Evaldo Miranda, Jr. , Mark A. Yoshimoto , Jamie L. Langlinais , Jonathan M. Audy
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.
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公开(公告)号：US09444281B2
公开(公告)日：2016-09-13
申请号：US14538729
申请日：2014-11-11
Applicant: Apple Inc.
Inventor： Mark A. Yoshimoto , Talbott M. Houk , Jamie L. Langlinais
CPC classification number: H02J7/0052 , H02J7/0068 , H02J7/007 , H02J7/022 , Y02B40/90 , Y02B70/1491 , Y02B70/16
Abstract: The embodiments discussed herein relate to systems, methods, and apparatus for providing a charger capable of adaptively handling a range of power inputs. The charger can selectively activate different control switches within the charger in order to more efficiently use current supplied to the charger. When a low power input is provided to the charger, the charger can reduce the number of active control switches being used to provide a voltage output from the charger. In this way, the capacitance required to toggle the control switches can be reduced. When a high power input is provided to the charger, the number of active control switches can be increased in order to increase a total amount of charge that can be provided from the charger, thereby reducing charge times for batteries.
Abstract translation: 本文讨论的实施例涉及用于提供能够自适应地处理一系列功率输入的充电器的系统，方法和装置。 充电器可以选择性地激活充电器内的不同的控制开关，以便更有效地使用提供给充电器的电流。 当向充电器提供低功率输入时，充电器可以减少用于提供来自充电器的电压输出的有源控制开关的数量。 以这种方式，可以减少切换控制开关所需的电容。 当向充电器提供高功率输入时，可以增加有源控制开关的数量，以便增加可从充电器提供的总电荷量，从而减少电池的充电时间。
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公开(公告)号：US20160064986A1
公开(公告)日：2016-03-03
申请号：US14749470
申请日：2015-06-24
Applicant: Apple Inc.
Inventor： Jamie Langlinais , Mark A. Yoshimoto , Lin Chen
IPC: H02J7/00
CPC classification number: H02J7/0081 , G06F1/263 , H02J7/0068 , H02J7/0078 , H02J2007/0067 , H02M3/158
Abstract: The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system operates a charging circuit for converting an input voltage from a power source into a set of output voltages for charging the battery and powering a low-voltage subsystem and a high-voltage subsystem in the portable electronic device. Upon detecting the input voltage from the power source and a low-voltage state in the battery during operation of the charging circuit, the system uses a first inductor group in the charging circuit to down-convert the input voltage to a target voltage of the battery that is lower than a voltage requirement of the high-voltage subsystem. The system also uses a second inductor group in the charging circuit to up-convert the target voltage to power the high-voltage subsystem.
Abstract translation: 所公开的实施例提供一种管理便携式电子设备中的电池的使用的系统。 在操作期间，系统操作充电电路，用于将来自电源的输入电压转换成用于对电池充电并为便携式电子设备中的低电压子系统和高压子系统供电的一组输出电压。 在充电电路工作期间，当检测到来自电源的输入电压和电池中的低电压状态时，系统使用充电电路中的第一电感器组来将输入电压下变换为电池的目标电压 低于高电压子系统的电压要求。 该系统还使用充电电路中的第二电感器组来升高目标电压以对高电压子系统供电。
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Patent Agency Ranking
公开(公告)号：US10560107B1
公开(公告)日：2020-02-11
申请号：US16450754
申请日：2019-06-24
Applicant: Apple Inc.
Inventor： Parin Patel , Jamie L. Langlinais , Mark A. Yoshimoto , Rajarshi Paul
Abstract: Power supply topologies can leverage relatively smaller component sizes while meeting the power requirements of loads. In a first stage, a determination is made as to whether a high current limit is exceeded for a first duration, or whether an average current provided exceeds an average current limit, such that a power supply component (e.g., inductor) is thermally stressed. In either event, a clock frequency is reduced by a first factor. In a second stage, a determination is made as to whether an output voltage drops below a voltage threshold. If so, the clock frequency may be further reduced by a second factor.
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公开(公告)号：US10305305B2
公开(公告)日：2019-05-28
申请号：US15261831
申请日：2016-09-09
Applicant: Apple Inc.
Inventor： Mark A. Yoshimoto , Talbott M. Houk , Jamie L. Langlinais
Abstract: The embodiments discussed herein relate to systems, methods, and apparatus for providing a charger capable of adaptively handling a range of power inputs. The charger can selectively activate different control switches within the charger in order to more efficiently use current supplied to the charger. When a low power input is provided to the charger, the charger can reduce the number of active control switches being used to provide a voltage output from the charger. In this way, the capacitance required to toggle the control switches can be reduced. When a high power input is provided to the charger, the number of active control switches can be increased in order to increase a total amount of charge that can be provided from the charger, thereby reducing charge times for batteries.
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8.发明申请公开(公告)号：US20180013348A1
公开(公告)日：2018-01-11
申请号：US15627082
申请日：2017-06-19
Applicant: Apple Inc.
Inventor： Rajarshi Paul , Parin Patel , Damon Lee , Evaldo Miranda, JR. , Mark A. Yoshimoto , Jamie L. Langlinais , Jonathan M. Audy
CPC classification number: H02M3/158 , H02M1/083 , H02M1/14 , H02M3/157 , H02M3/1584 , H02M2001/0009 , H02M2003/1566 , H03K5/04
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.
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公开(公告)号：US20220399810A1
公开(公告)日：2022-12-15
申请号：US17343459
申请日：2021-06-09
Applicant: Apple Inc.
Inventor： Hao Zhou , Sarfraz Shaikh , Jay B. Fletcher , Sanjay Pant , Mark A. Yoshimoto , Vincenzo Bisogno , Shawn Searles
Abstract: A power management circuit included in a computer system regulates a voltage level of a power supply node used by other circuits in the computer system. The power management circuit includes a control circuit and multiple phase circuits coupled to the regulated power supply node via corresponding inductors. The control circuit selectively activates particular ones of the multiple phase circuits allowing them source respective currents to the regulated power supply node. The control circuit also selectively activates particular ones of other phase circuits that are external to the power management circuit and coupled to the regulated power supply node via their own corresponding inductors. Once activated, the external phase circuits source respective currents to the regulated power supply node via their corresponding inductors.
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公开(公告)号：US10333528B1
公开(公告)日：2019-06-25
申请号：US16125624
申请日：2018-09-07
Applicant: Apple Inc.
Inventor： Parin Patel , Jamie L. Langlinais , Mark A. Yoshimoto , Rajarshi Paul
Abstract: Power supply topologies can leverage relatively smaller component sizes while meeting the power requirements of loads. In a first stage, a determination is made as to whether a high current limit is exceeded for a first duration, or whether an average current provided exceeds an average current limit, such that a power supply component (e.g., inductor) is thermally stressed. In either event, a clock frequency is reduced by a first factor. In a second stage, a determination is made as to whether an output voltage drops below a voltage threshold. If so, the clock frequency may be further reduced by a second factor.
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