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公开(公告)号：US09601932B2
公开(公告)日：2017-03-21
申请号：US14594621
申请日：2015-01-12
Applicant: Apple Inc.
Inventor： William C. Athas , Thomas C. Greening
CPC classification number: H02J7/0019 , H02J7/0016 , H02M3/07 , Y10T307/696
Abstract: A system that balances voltages between battery banks. The system includes battery banks, including a first bank and a second bank, and a first capacitor. The system also includes a first set of switching devices which selectively couple first and second terminals of the first capacitor to first and second terminals of the first bank, and to first and second terminals of the second bank. The system includes a clocking circuit which generates clock signals with substantially non-overlapping first and second clock phases. This clocking circuit is configured so that during the first phase the first and second terminals of the first capacitor are coupled to the first and second terminals of the first bank, respectively, and during the second phase the first and second terminals of the first capacitor are coupled to the first and second terminals of the second bank, respectively.
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32.发明申请SYSTEMS AND METHODS FOR BIDIRECTIONAL TWO-PORT BATTERY CHARGING WITH BOOST FUNCTIONALITY 审中-公开用于双向功能的双向电池充电系统和方法公开(公告)号：US20160380455A1
公开(公告)日：2016-12-29
申请号：US15051228
申请日：2016-02-23
Applicant: Apple Inc.
Inventor： Thomas C. Greening , Kamran M. Hasan , Edrick C. G. Wong
IPC: H02J7/00
CPC classification number: H02J7/0044 , G06F1/26 , H02J1/00 , H02J1/102 , H02J7/0068 , H02J7/34 , H02J2001/008 , H02M1/10 , H02M3/158 , H02M3/1582 , H02M2001/008 , H02M2001/009
Abstract: The disclosed embodiments provide a charging system for a portable electronic device. The charging system includes a first bidirectional switching converter connected to a first power port of the portable electronic device, a low-voltage subsystem in the portable electronic device, and a high-voltage subsystem in the portable electronic device and a second bidirectional switching converter connected to a second power port of the portable electronic device, the low-voltage subsystem, and the high-voltage subsystem. The charging system also includes a control circuit that operates the first and second bidirectional switching converters to provide and receive power through the first and second power ports and convert an input voltage received through the first or second power port into a set of output voltages for charging an internal battery in the portable electronic device and powering the low-voltage subsystem and the high-voltage subsystem.
Abstract translation: 所公开的实施例提供了一种用于便携式电子设备的充电系统。 充电系统包括连接到便携式电子设备的第一电源端口的第一双向开关转换器，便携式电子设备中的低压子系统以及便携式电子设备中的高压子系统以及连接到第二双向开关转换器 到便携式电子设备的第二电源端口，低电压子系统和高压子系统。 充电系统还包括控制电路，其操作第一和第二双向开关转换器以通过第一和第二电源端口提供和接收电力，并将通过第一或第二电力端口接收的输入电压转换成一组用于充电的输出电压 便携式电子设备中的内部电池，并为低电压子系统和高压子系统供电。
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公开(公告)号：US20140327410A1
公开(公告)日：2014-11-06
申请号：US13875106
申请日：2013-05-01
Applicant: APPLE INC.
Inventor： Parin Patel , Thomas C. Greening , Carl D. Tappan
IPC: H02J7/00
CPC classification number: H02J7/0052 , H02J7/0003 , H02J7/0031
Abstract: An on-chip digital communication interface circuit is to be directly coupled to a counterpart interface circuit of a separate battery-side gas gauge circuit. An on-chip battery charging control circuit controls battery charging voltage and current that is supplied from a separate power source interface circuit to a battery cell terminal, according to charging voltage and current limits. The charging limits are read from the gas gauge circuit and in effect carry out a selected one of several different battery charging profiles. Other embodiments are also described and claimed.
Abstract translation: 片上数字通信接口电路将直接耦合到单独的电池侧气量计电路的对方接口电路。 片上电池充电控制电路根据充电电压和电流限制来控制从单独的电源接口电路向电池单元端子提供的电池充电电压和电流。 从气量计电路读取充电限制，并且实际上执行几个不同电池充电曲线中所选择的一个。 还描述和要求保护其他实施例。
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34.发明申请公开(公告)号：US20140257724A1
公开(公告)日：2014-09-11
申请号：US13791328
申请日：2013-03-08
Applicant: APPLE INC.
Inventor： Nils E. Mattisson , P. Jeffrey Ungar , Thomas C. Greening , Jeffrey G. Koller
IPC: G01R31/36
CPC classification number: G01R31/362 , G01R31/361 , G01R31/3651 , H01M10/48 , H01M2220/30 , H02J7/0047
Abstract: A system for tracking the capacity of a battery in a portable electronic device is described. While the portable electronic device remains plugged in to a power adapter, the system estimates the capacity of the battery by performing the following operations. The system measures a first open-circuit voltage for the battery while the battery rests at a first state of charge. Next, the system causes the battery to transition to a second state of charge. While the battery transitions to the second state of charge, the system integrates a current through the battery to determine a net change in charge for the battery. Next, the system measures a second open-circuit voltage for the battery while the battery rests at the second state of charge. Finally, the system estimates a capacity for the battery based on the first open-circuit voltage, the second open-circuit voltage and the net change in charge. This capacity measurement is repeated and the multiple results are fit to a line. The slope of fitted line is then used to estimate how the true battery capacity has faded since last measured using traditional methods that require the battery to be rested at a low state of charge.
Abstract translation: 描述了用于跟踪便携式电子设备中的电池的容量的系统。 当便携式电子设备保持插入电源适配器时，系统通过执行以下操作来估计电池的容量。 当电池处于第一充电状态时，系统测量电池的第一开路电压。 接下来，系统使电池转换到第二充电状态。 当电池转换到第二充电状态时，系统将通过电池的电流进行积分，以确定电池的充电净变化。 接下来，当电池处于第二充电状态时，系统测量电池的第二开路电压。 最后，系统基于第一开路电压，第二开路电压和电荷的净变化来估计电池的容量。 重复此容量测量，并将多个结果适合于一条线。 然后，使用拟合线的斜率来估计最后使用要求电池在低电荷状态下休息的传统方法测量的真实电池容量是否褪色。
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公开(公告)号：US20240102856A1
公开(公告)日：2024-03-28
申请号：US18234794
申请日：2023-08-16
Applicant: Apple Inc.
Inventor： Matthew A. Terrel , David S. Gere , Alexander F. Sugarbaker , Thomas C. Greening , Jason S. Pelc , Mark A. Arbore
CPC classification number: G01J1/44 , G02B6/43 , G01J2001/444
Abstract: Embodiments are directed to optical measurement systems that utilize multiple emitters to emit light during a measurement, as well as methods of performing measurements using these optical measurement systems. The optical measurement systems may include a light generation assembly that is configured to generate light via a light source unit, and a photonic integrated circuit that includes a launch group having a plurality of emitters. Each of these emitters is optically coupled to the light generation assembly to receive light generated from the light generation assembly, and may emit this light from a surface of the photonic integrated circuit. The optical measurement system may perform a measurement in which the light generation assembly generates light and each of the plurality of emitters simultaneously emit light received from the light generation assembly.
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Patent Agency Ranking
公开(公告)号：US20240094592A1
公开(公告)日：2024-03-21
申请号：US18526269
申请日：2023-12-01
Applicant: Apple Inc.
Inventor： Yi-Kuei Wu , Jason Pelc , Mark Alan Arbore , Thomas C. Greening , Matthew A. Terrel , Yongming Tu , Mohamed Mahmoud
IPC: G02F1/21
Abstract: Disclosed herein is an integrated photonics device including an on-chip wavelength stability monitor. The wavelength stability monitor may include one or more interferometric components, such as Mach-Zehnder interferometers and can be configured to select among the output signals from the interferometric components for monitoring the wavelength emitted by a corresponding photonic component, such as a light source. The selection may be based on a slope of the output signal and in some examples may correspond to a working zone at or around a wavelength or wavelength range. In some examples, the interferometric components can be configured with different phase differences such that the corresponding working zones have different wavelengths. In some examples, the slopes of the output signals may be weighted based on the steepness of the slope and all of the output signals may include information for wavelength locking the measured wavelength to the target wavelength.
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公开(公告)号：US20230324286A1
公开(公告)日：2023-10-12
申请号：US18121427
申请日：2023-03-14
Applicant: Apple Inc.
Inventor： Jason S. Pelc , Mark A. Arbore , Matthew A. Terrel , Thomas C. Greening , Yongming Tu , Lucia Gan
IPC: G01N21/31
CPC classification number: G01N21/31
Abstract: Various embodiments disclosed herein describe optical measurement systems for characterizing a sample. The optical measurement systems may selectively emit light from different numbers of launch groups, and may include a multi-stage optical switch network that may be controlled to route light to a desired number of launch groups. The optical measurement systems may further measure light using a corresponding number of detector groups. The optical measurement systems may perform measurements using a plurality of different wavelengths, where different groups of these wavelengths may be measured using different numbers of launch groups (as well as corresponding detector groups).
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公开(公告)号：US10666062B2
公开(公告)日：2020-05-26
申请号：US15913634
申请日：2018-03-06
Applicant: Apple Inc.
Inventor： Thomas C. Greening , Kamran M. Hasan
Abstract: Systems and methods for power management are disclosed herein. In one disclosed embodiment, a battery charging system includes a battery charger for simultaneously charging a battery (and/or providing power to a system load) with multiple power sources, using a closed-loop charging servo target based on measurements taken by one or more gauges. In some embodiments, the multiple power sources may be utilized simultaneously according to a charging profile that specifies, e.g., one or more battery charging parameters, as well as according to determined priority levels for one or more of the multiple power sources coupled to the battery. In some embodiments, the priority level of a given power source is not fixed; rather, the priority level for the given power source may change based upon the characteristics of the given power source. In some embodiments, the priority levels for the multiple power sources are implemented using cascaded voltage target values.
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公开(公告)号：US10236694B2
公开(公告)日：2019-03-19
申请号：US15662408
申请日：2017-07-28
Applicant: Apple Inc.
Inventor： Thomas C. Greening , Karthik Kadirvel , Gary L. Stirk , Saroj K. Sahu , Kamran M. Hasan
Abstract: This disclosure describes a battery pack that includes a plurality of asymmetrical banks, with different capacities and/or voltages, and multiple taps, coupled to the corresponding banks, to power electrical loads. The battery pack also comprise a balancing circuit and a battery management unit. The battery pack may regulate voltages among the banks and/or balance the states of charge among the asymmetrical banks, by moving charges among the banks, by controlling one or more converters. The battery pack monitors the status of its banks and communicate with a host system via the battery management unit. Based on the monitored information and/or communication, the battery management unit generates control signals to drive the one or more converters.
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公开(公告)号：US20180102664A1
公开(公告)日：2018-04-12
申请号：US15833577
申请日：2017-12-06
Applicant: Apple Inc.
Inventor： Thomas C. Greening , Qing Liu , William C. Athas
CPC classification number: H02M3/1582 , G06F1/263 , H02J7/0068 , H02J9/061 , 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 provides 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 discharging of the battery in a low-voltage state, the system uses the charging circuit to directly power the low-voltage subsystem from a battery voltage of the battery and up-convert the battery voltage to power the high-voltage subsystem.
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