公开(公告)号：US09722283B2

公开(公告)日：2017-08-01

申请号：US14184167

申请日：2014-02-19

Applicant: Apple Inc.

Inventor： Jeffrey G. Koller ,  Nils E. Mattisson ,  Thomas C. Greening ,  P. Jeffrey Ungar

IPC: H02J7/00 ,  H01M10/48 ,  H01M10/42 ,  G01R31/36

CPC classification number: H01M10/48 ,  G01R31/361 ,  G01R31/3651 ,  G01R31/3675 ,  H01M2010/4271 ,  H01M2220/30

Abstract: The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system obtains a voltage of the battery and a state-of-charge of the battery and calculates an effective C-rate of the battery using the voltage and the state-of-charge. Next, the system uses the effective C-rate to estimate an inaccessible capacity of the battery. Finally, the system manages use of the battery with the portable electronic device based on the inaccessible capacity.

公开(公告)号：US20150369868A1

公开(公告)日：2015-12-24

申请号：US14841095

申请日：2015-08-31

Applicant: Apple Inc.

Inventor： Thomas C. Greening ,  Jeffrey G. Koller ,  Nils E. Mattisson ,  P. Jeffrey Ungar

IPC: G01R31/36

CPC classification number: G01R31/362 ,  G01R31/3634 ,  G01R31/3648 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/0525 ,  H01M10/4285 ,  H01M10/48

Abstract: Some embodiments of the present invention provide a system that estimates a state of charge for a battery. During operation, while the battery is relaxing toward a fully rested state, the system determines if a modified state of charge of the battery is substantially consistent with a predetermined decay pattern. If so, the system estimates the state of charge of the battery as a value of the modified state of charge determined at the time when the consistency is observed. Otherwise, the system continues monitoring the modified state of charge of the battery. In one embodiment, the predetermined decay pattern is a single exponential decay. After estimating the state of charge of the battery, the system may determine an uncertainty of the estimated state of charge. More specifically, the system can estimate the uncertainty as substantially equal to a fraction of the difference between the value of the modified state of charge and the value of the voltage-based state of charge at the time when the consistency is observed.

Abstract translation: 本发明的一些实施例提供一种估计电池的充电状态的系统。 在操作期间，当电池正在朝着完全静止状态放松时，系统确定电池的修改的充电状态是否与预定的衰减模式大致一致。 如果是这样，系统将电池的充电状态估计为在观察到一致性时确定的充电状态的值。 否则，系统继续监视电池的修改充电状态。 在一个实施例中，预定衰减模式是单指数衰减。 在估计电池的充电状态之后，系统可以确定估计的充电状态的不确定性。 更具体地，系统可以将不确定度估计为基本上等于修正充电状态的值与观察到一致性时的基于电压的充电状态的值之间的差的一小部分。

公开(公告)号：US20150200056A1

公开(公告)日：2015-07-16

申请号：US14476250

申请日：2014-09-03

Applicant: Apple Inc.

Inventor： Jeffrey G. Koller ,  P. Jeffrey Ungar

IPC: H01G4/30 ,  H02M3/04

CPC classification number: H01G4/30 ,  G05F1/10 ,  H01G4/012 ,  H01G4/12 ,  H01G4/35 ,  H01G4/38 ,  H01G4/40 ,  H02M1/12 ,  H02M3/04

Abstract: A device is presented for decoupling voltage transients occurring on a voltage signal generated by a voltage regulator. The device may decouple the voltage transients from circuits coupled to the voltage regulator. The device may include two capacitors that may be contained in a single package. The two capacitors may be coupled to the voltage signal from the voltage regulator such that one capacitor is also coupled to a ground reference and the other capacitor is also coupled to a supply voltage. The capacitors may be constructed in a multi-layer ceramic capacitor (MLCC) process. The materials that form the MLCC may be arranged such that the MLCC package does not change shape or vibrate in response to voltage level fluctuations on the voltage signal.

Abstract translation: 提出了一种用于去耦合由电压调节器产生的电压信号上发生的电压瞬变的器件。 器件可以将电压瞬变与耦合到电压调节器的电路分离。 该装置可以包括可以包含在单个封装中的两个电容器。 两个电容器可以耦合到来自电压调节器的电压信号，使得一个电容器也耦合到接地基准，而另一个电容器也耦合到电源电压。 电容器可以由多层陶瓷电容器（MLCC）制造。 形成MLCC的材料可以被布置成使得MLCC封装不响应于电压信号上的电压电平波动而改变形状或振动。

公开(公告)号：US20150137860A1

公开(公告)日：2015-05-21

申请号：US14547705

申请日：2014-11-19

Applicant: Apple Inc.

Inventor： P. Jeffrey Ungar ,  William C. Athas ,  Jeffrey G. Koller ,  Derek G. Pyne

IPC: H03K3/012 ,  H03K17/687 ,  H02M1/08

CPC classification number: H03K17/687 ,  H02M1/08 ,  H02M3/158 ,  H02M2001/0054 ,  Y02B70/1425 ,  Y02B70/1491

Abstract: The disclosed embodiments provide a circuit for driving a capacitive load. The circuit includes a first inductor with an input terminal and a load terminal, wherein the load terminal is coupled to the capacitive load. The circuit also includes four or more switching devices. The switching devices may hold a voltage on the load terminal at zero volts. Next, the switching devices may charge the capacitive load through the first inductor until the voltage on the load terminal reaches a first input voltage supplied by a voltage source. The switching devices may then hold the voltage on the load terminal at the first input voltage. Finally, the switching devices may discharge the capacitive load through the first inductor until the voltage on the load terminal reaches zero volts.

Abstract translation: 所公开的实施例提供用于驱动电容性负载的电路。 电路包括具有输入端子和负载端子的第一电感器，其中负载端子耦合到电容性负载。 该电路还包括四个或更多个开关装置。 开关器件可以在负载端子上保持零伏特的电压。 接下来，开关器件可以通过第一电感器对容性负载充电，直到负载端子上的电压达到由电压源提供的第一输入电压。 然后，开关器件可以将负载端子上的电压保持在第一输入电压。 最后，开关器件可以通过第一电感放电容性负载，直到负载端子上的电压达到零伏。

公开(公告)号：US20140079969A1

公开(公告)日：2014-03-20

申请号：US13622852

申请日：2012-09-19

Applicant: APPLE INC.

Inventor： Thomas C. Greening ,  Jeffrey G. Koller ,  Nils E. Mattisson ,  P. Jeffrey Ungar

IPC: G01R31/36 ,  H01M10/48 ,  G06F19/00

CPC classification number: G01R31/362 ,  G01R31/3634 ,  G01R31/3648 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/0525 ,  H01M10/4285 ,  H01M10/48

Abstract: Some embodiments of the present invention provide a system that estimates a state of charge for a battery. During operation, while the battery is relaxing toward a fully rested state, the system determines if a modified state of charge of the battery is substantially consistent with a predetermined decay pattern. If so, the system estimates the state of charge of the battery as a value of the modified state of charge determined at the time when the consistency is observed. Otherwise, the system continues monitoring the modified state of charge of the battery. In one embodiment, the predetermined decay pattern is a single exponential decay. After estimating the state of charge of the battery, the system may determine an uncertainty of the estimated state of charge. More specifically, the system can estimate the uncertainty as substantially equal to a fraction of the difference between the value of the modified state of charge and the value of the voltage-based state of charge at the time when the consistency is observed.

Abstract translation: 本发明的一些实施例提供一种估计电池的充电状态的系统。 在操作期间，当电池正在朝着完全静止状态放松时，系统确定电池的修改的充电状态是否与预定的衰减模式大致一致。 如果是这样，系统将电池的充电状态估计为在观察到一致性时确定的充电状态的值。 否则，系统继续监视电池的修改充电状态。 在一个实施例中，预定衰减模式是单指数衰减。 在估计电池的充电状态之后，系统可以确定估计的充电状态的不确定性。 更具体地，系统可以将不确定度估计为基本上等于修正充电状态的值与观察到一致性时的基于电压的充电状态的值之间的差的一小部分。