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公开(公告)号：US10581330B2
公开(公告)日：2020-03-03
申请号：US16002551
申请日：2018-06-07
Applicant: Apple Inc.
Inventor： Damon Lee , Jamie L. Langlinais , Jonathan M. Audy , Mark A. Yoshimoto , Rajarshi Paul , Talbott M. Houk
Abstract: A power conversion circuit providing a regulated output voltage to a load can include a switching regulator with an input configured to be coupled to an input voltage source and an output configured to be coupled to the load. The power conversion circuit can further include a metered charge transfer converter, such as a charge pump or a switched or pulsed current source, having an input configured to be coupled to an input voltage source and having an output configured to be coupled to the load. A controller coupled to the metered charge transfer converter can be configured to operate the metered charge transfer converter to deliver energy to the load responsive to a dip of the regulated output voltage below a threshold caused by an increase in current drawn by the load. The metered charge transfer converter may be located closer to the load than the switching regulator.
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公开(公告)号：US20190280590A1
公开(公告)日：2019-09-12
申请号：US16002551
申请日：2018-06-07
Applicant: Apple Inc.
Inventor： Damon Lee , Jamie L. Langlinais , Jonathan M. Audy , Mark A. Yoshimoto , Rajarshi Paul , Talbott M. Houk
Abstract: A power conversion circuit providing a regulated output voltage to a load can include a switching regulator with an input configured to be coupled to an input voltage source and an output configured to be coupled to the load. The power conversion circuit can further include a metered charge transfer converter, such as a charge pump or a switched or pulsed current source, having an input configured to be coupled to an input voltage source and having an output configured to be coupled to the load. A controller coupled to the metered charge transfer converter can be configured to operate the metered charge transfer converter to deliver energy to the load responsive to a dip of the regulated output voltage below a threshold caused by an increase in current drawn by the load. The metered charge transfer converter may be located closer to the load than the switching regulator.
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公开(公告)号：US20180090945A1
公开(公告)日：2018-03-29
申请号：US15455907
申请日：2017-03-10
Applicant: Apple Inc.
Inventor： Jamie L. Langlinais , Mark A. Yoshimoto
IPC: H02J7/00
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：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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Patent Agency Ranking
公开(公告)号：US20180091051A1
公开(公告)日：2018-03-29
申请号：US15441731
申请日：2017-02-24
Applicant: Apple Inc.
Inventor： Jamie L. Langlinais , Di Zhao
CPC classification number: H02M3/158 , H02M2001/0009
Abstract: A method for dc-dc power conversion using a switching phase. While a high side switch of the phase is closed, detecting that a high side current of the phase has risen to a set peak limit, and in response opening the high side switch. While the high side switch is open, preventing the high side switch from closing so long as a valley limit reached condition has not been detected, wherein the valley limit reached condition is detected when a low side current of the phase has dropped to a set valley limit. Other embodiments are also described and claimed.
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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：US20230280772A1
公开(公告)日：2023-09-07
申请号：US18314872
申请日：2023-05-10
Applicant: APPLE INC.
Inventor： Doron Rajwan , Craig S Forbell , Jamie L. Langlinais
IPC: G05F1/46
CPC classification number: G05F1/46
Abstract: An apparatus includes hardware circuits, a front-end power supply, voltage regulators, and control circuitry. The front-end power supply generates electrical power for the hardware circuits. The front-end power supply includes power stages that generate portions of electrical power and are activated and deactivated independently. The voltage regulators are connected to an output of the front-end power supply and provide adjustable operating voltages to the hardware circuits. The control circuitry controls the voltage regulators to supply the adjustable operating voltages responsively to requests from the hardware circuits, compares the adjustable operating voltages to settings that are specified as safe for provisioning by a predefined partial number of the power stages of the front-end power supply, and adaptively activates and deactivates the power stages, including ensuring that a number of active power stages is set to the predefined partial number only while the operating voltages match the safe settings.
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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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