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公开(公告)号：US10830821B2
公开(公告)日：2020-11-10
申请号：US14605914
申请日：2015-01-26
Applicant: Apple Inc.
Inventor： Yiming Lou , Soundararajan Manthiri
IPC: H02J7/00 , H02J9/00 , G06F17/40 , G06F19/00 , G01R31/36 , G01R31/367 , G01R31/387
Abstract: This application relates to methods and apparatus for predicting power and energy availability of a battery. The prediction is made based on a given amount of time, which represents a period in which the battery may be required to operate. Additionally, a learning cycle is incorporated to update a battery model of the battery with certain parameters. The battery model is updated by introducing a time-varying current to the battery and analyzing the voltage response of the battery. A model-based predictive algorithm is used in combination with the battery model to predict battery output parameters based on variables derived from the learning cycle and additional inputs supplied to the model-based predictive algorithm. After one or more iterations, or using a simplified model-based equation, the model-based predictive algorithm can provide an accurate prediction for the maximum current that the battery can supply for a predetermined period of time.
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公开(公告)号：US20160126761A1
公开(公告)日：2016-05-05
申请号：US14991305
申请日：2016-01-08
Applicant: Apple Inc.
Inventor： Emery A. Sanford , David G. Havskjold , Steven G. Herbst , Anthony S. Montevirgen , Jeffery J. Terlizzi , Tyson B. Manullang , Charles A. Schwalbach , Glenn David Henshaw , Vikas Agrawal , Soundararajan Manthiri
IPC: H02J7/00
Abstract: Power management systems for an electronic product demonstration fixture for demonstrating portable electronic devices. The product demonstration fixture may include an exhibition portion and a base portion. A portable electronic device offered for sale may be affixed to the exhibition portion. The base portion may include an electronic display, an auxiliary battery, and an auxiliary controller. The auxiliary controller may direct power from the auxiliary battery to the electronic display upon determining that a battery within the electronic display has fallen below a particular selected level. Similarly the auxiliary controller may direct power from the auxiliary battery to the portable electronic device offered for sale upon determining that a battery within the portable electronic device has fallen below a selected level.
Abstract translation: 用于演示便携式电子设备的电子产品演示夹具的电源管理系统。 产品演示固定装置可以包括展览部分和基部。 提供出售的便携式电子设备可以贴在展览部分上。 基部可以包括电子显示器，辅助电池和辅助控制器。 在确定电子显示器内的电池已经低于特定选定电平以下时，辅助控制器可以将辅助电池的电力引导到电子显示器。 类似地，辅助控制器可以在确定便携式电子设备中的电池已经低于选定的电平之前将电力从辅助电池引导到提供出售的便携式电子设备。
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公开(公告)号：US10084326B2
公开(公告)日：2018-09-25
申请号：US15167263
申请日：2016-05-27
Applicant: Apple Inc.
Inventor： Karthik Kadirvel , Soundararajan Manthiri
CPC classification number: H02J7/0026 , H01M2/34 , H01M10/425 , H01M10/441 , H01M10/482 , H01M2010/4271 , H01M2200/00 , H02J7/0031 , H02J7/0083 , H02J2007/0039
Abstract: This disclosure relates generally to the field of providing highly accurate over current fault protection in charging systems and, more particularly, to systems in which the charge over current protection (COCP) and discharge over current protection (DOCP) circuitry in electronic devices are particularly resilient to variations in field-effect transistor (FET) resistance with temperature, gate drive, and/or process shift; variations in printed circuit board (PCB) resistance; and variations in integrated circuit (IC) trip voltages. Through the use of novel circuit designs disclosed herein that effectively “bypass” the traditional “power FETs” that control the current flow to the battery pack(s) of the electronic device using a novel “sense FET” concept, the major sources of error in current sensing may be eliminated without compromising any safety features of the electronic device, thus allowing for more accurate over current fault protection systems for battery packs across a wide range of operating conditions and temperatures.
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公开(公告)号：US20160380447A1
公开(公告)日：2016-12-29
申请号：US15167263
申请日：2016-05-27
Applicant: Apple Inc.
Inventor： Karthik Kadirvel , Soundararajan Manthiri
CPC classification number: H02J7/0026 , H01M2/34 , H01M10/425 , H01M10/441 , H01M10/482 , H01M2010/4271 , H01M2200/00 , H02J7/0031 , H02J7/0083 , H02J2007/0039
Abstract: This disclosure relates generally to the field of providing highly accurate over current fault protection in charging systems and, more particularly, to systems in which the charge over current protection (COCP) and discharge over current protection (DOCP) circuitry in electronic devices are particularly resilient to variations in field-effect transistor (FET) resistance with temperature, gate drive, and/or process shift; variations in printed circuit board (PCB) resistance; and variations in integrated circuit (IC) trip voltages. Through the use of novel circuit designs disclosed herein that effectively “bypass” the traditional “power FETs” that control the current flow to the battery pack(s) of the electronic device using a novel “sense FET” concept, the major sources of error in current sensing may be eliminated without compromising any safety features of the electronic device, thus allowing for more accurate over current fault protection systems for battery packs across a wide range of operating conditions and temperatures.
Abstract translation: 本公开一般涉及在充电系统中提供高精度过电流故障保护的领域，更具体地说，涉及在电子设备中充电过电流保护（COCP）和放电过电流保护（DOCP）电路特别有弹性的系统 对于具有温度，栅极驱动和/或工艺偏移的场效应晶体管（FET）电阻的变化; 印刷电路板（PCB）电阻的变化; 以及集成电路（IC）跳闸电压的变化。 通过使用本文公开的新颖的电路设计，有效地“绕过”传统的“功率FET”，其使用新颖的“感测FET”概念来控制电流到电池组的电池组的电流，主要的误差源 可以消除电流感测，而不会影响电子设备的任何安全特征，从而允许在宽范围的工作条件和温度下对电池组进行更精确的过电流故障保护系统。
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公开(公告)号：US20160072314A1
公开(公告)日：2016-03-10
申请号：US14845846
申请日：2015-09-04
Applicant: Apple Inc.
Inventor： Jose V. Santos , Yongxuan Hu , Steve Sterz , Rob Hoyt , Soundararajan Manthiri
IPC: H02J7/00
CPC classification number: H02J7/007 , H02J7/0006 , H02J7/0021 , H02J7/0026 , H02J7/0031 , H02J7/0036 , H02J7/0047 , H02J7/0068 , H02J7/045 , H02J2007/0001
Abstract: The disclosed embodiments provide a system that manages use of a battery in a portable electronic device. During operation, the system attempts to regulate a voltage on a battery terminal in the portable electronic device to a first voltage level. Upon identifying an inability to regulate the voltage on the battery terminal to the first voltage level during a first detection period, the system detects a presence of the battery in the portable electronic device.
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，系统试图将便携式电子设备中的电池端子上的电压调节到第一电压电平。 在第一检测周期中，当识别出无法将电池端子上的电压调节到第一电压电平时，系统检测便携式电子设备中电池的存在。
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Patent Agency Ranking
公开(公告)号：US20210075068A1
公开(公告)日：2021-03-11
申请号：US17099287
申请日：2020-11-16
Applicant: Apple Inc.
Inventor： Daniel W. Jarvis , David M. DeMuro , Hongli Dai , Julian Malinski , Julien Marcil , Meng Chi Lee , Richard Hung Minh Dinh , Rishabh Bhargava , Steven D. Sterz , Richard M. Mank , Soundararajan Manthiri , Vijayasekaran Boovaragavan
Abstract: Methods and systems for detecting and compensating for expansion of rechargeable batteries over time. An expansion detector may be coupled to or positioned proximate a rechargeable battery to monitor for expansion thereof. After expansion exceeding a selected threshold is detected, the expansion detector may report the expansion to an associated processing unit. The processing unit may undertake to arrest further rechargeable battery expansion by modifying or changing one or more characteristics of charging and/or discharging circuitry coupled to the rechargeable battery. For example, the processing unit may charge the rechargeable battery at a lower rate or with reduced voltage after detecting expansion.
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公开(公告)号：US09917335B2
公开(公告)日：2018-03-13
申请号：US14838395
申请日：2015-08-28
Applicant: Apple Inc.
Inventor： Daniel W. Jarvis , David M. DeMuro , Hongli Dai , Julian Malinski , Julien Marcil , Meng Chi Lee , Richard Hung Minh Dinh , Rishabh Bhargava , Steven D. Sterz , Richard M. Mank , Soundararajan Manthiri , Vijayasekaran Boovaragavan
CPC classification number: H01M10/4257 , G01R31/3606 , H01M10/44 , H01M10/445 , H01M10/48 , H01M2010/4271 , H01M2220/30
Abstract: Methods and systems for detecting and compensating for expansion of rechargeable batteries over time. An expansion detector may be coupled to or positioned proximate a rechargeable battery to monitor for expansion thereof. After expansion exceeding a selected threshold is detected, the expansion detector may report the expansion to an associated processing unit. The processing unit may undertake to arrest further rechargeable battery expansion by modifying or changing one or more characteristics of charging and/or discharging circuitry coupled to the rechargeable battery. For example, the processing unit may charge the rechargeable battery at a lower rate or with reduced voltage after detecting expansion.
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公开(公告)号：US20160336773A1
公开(公告)日：2016-11-17
申请号：US15154345
申请日：2016-05-13
Applicant: Apple Inc.
Inventor： Karthik Kadirvel , Soundararajan Manthiri
IPC: H02J7/00
CPC classification number: H02J7/0026 , H02J7/0021 , H02J7/34
Abstract: In general, techniques are disclosed for providing short circuit protection to a battery pack having a number of battery cells, at least some of which are connected in parallel. Short circuit protection is provided by using pairs of electronic switches (e.g., integrated circuits consisting of a pair of transistors designed as battery charge/discharge switches) serially connected between one terminal of a battery cell and a battery pack's common node—a position which is upstream of conventional battery pack fault controllers. The state of all such switches may be controlled by a control unit that is also upstream of a conventional fault controller. The combination of switch pairs and control unit can provide a battery pack with over current (short circuit) protection without the use of thermal cutoff devises. The described devices and systems can also provide over voltage, under voltage and over temperature protection.
Abstract translation: 通常，公开了用于向具有多个电池单元的电池组提供短路保护的技术，其中至少一些电池单元并联连接。 通过使用串联连接在电池单元的一个端子和电池组的公共节点之间的电子开关对（例如由设计为电池充电/放电开关的一对晶体管组成的集成电路）提供短路保护 - 位置是 常规电池组故障控制器上游。 所有这样的开关的状态可以由也在常规故障控制器的上游的控制单元控制。 开关对和控制单元的组合可以提供具有过流（短路）保护的电池组，而不使用热切断装置。 所描述的器件和系统还可以提供过压，欠压和过温保护。
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公开(公告)号：US10826313B2
公开(公告)日：2020-11-03
申请号：US14991305
申请日：2016-01-08
Applicant: Apple Inc.
Inventor： Emery A. Sanford , David G. Havskjold , Steven G. Herbst , Anthony S. Montevirgen , Jeffery J. Terlizzi , Tyson B. Manullang , Charles A. Schwalbach , Glenn David Henshaw , Vikas Agrawal , Soundararajan Manthiri
Abstract: Power management systems for an electronic product demonstration fixture for demonstrating portable electronic devices. The product demonstration fixture may include an exhibition portion and a base portion. A portable electronic device offered for sale may be affixed to the exhibition portion. The base portion may include an electronic display, an auxiliary battery, and an auxiliary controller. The auxiliary controller may direct power from the auxiliary battery to the electronic display upon determining that a battery within the electronic display has fallen below a particular selected level. Similarly the auxiliary controller may direct power from the auxiliary battery to the portable electronic device offered for sale upon determining that a battery within the portable electronic device has fallen below a selected level.
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公开(公告)号：US20180337537A1
公开(公告)日：2018-11-22
申请号：US16050325
申请日：2018-07-31
Applicant: Apple Inc.
Inventor： Karthik Kadirvel , Soundararajan Manthiri
CPC classification number: H02J7/0026 , H01M2/34 , H01M10/425 , H01M10/441 , H01M10/482 , H01M2010/4271 , H01M2200/00 , H02J7/0031 , H02J7/0083 , H02J2007/0039
Abstract: This disclosure relates generally to the field of providing highly accurate over current fault protection in charging systems and, more particularly, to systems in which the charge over current protection (COCP) and discharge over current protection (DOCP) circuitry in electronic devices are particularly resilient to variations in field-effect transistor (FET) resistance with temperature, gate drive, and/or process shift; variations in printed circuit board (PCB) resistance; and variations in integrated circuit (IC) trip voltages. Through the use of novel circuit designs disclosed herein that effectively “bypass” the traditional “power FETs” that control the current flow to the battery pack(s) of the electronic device using a novel “sense FET” concept, the major sources of error in current sensing may be eliminated without compromising any safety features of the electronic device, thus allowing for more accurate over current fault protection systems for battery packs across a wide range of operating conditions and temperatures.
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