公开(公告)号：WO2015077234A2

公开(公告)日：2015-05-28

申请号：PCT/US2014/066163

申请日：2014-11-18

Applicant: QUALCOMM INCORPORATED

Inventor： MIKUTEIT, Eric Ian

IPC: G01R19/00

CPC classification number: G01R31/3644 ,  G01R1/203 ,  G01R15/09 ,  G01R19/0092 ,  G01R31/3624 ,  H01M10/48 ,  H03K2217/0027

Abstract: A circuit comprises a battery field-effect transistor (FET) coupled between a battery and an electronic system so that current from the battery flows through the battery FET to the electronic system. A replica FET couples the battery to a current sensing circuit. One of the battery FET and the replica FET comprises a plurality of parallel FET segments having separate control terminals. A logic block provides a plurality of switch control signals based on a system state input. A switching circuit receives the switch control signals and selectively couples the separate control terminals of the FET segments to one of a first reference voltage terminal or a second reference voltage terminal to independently turn each FET segment on or off. The current sensing circuit provides a voltage indicative of the current flowing through the replica FET.

Abstract translation: 电路包括耦合在电池和电子系统之间的电池场效应晶体管（FET），使得来自电池的电流流过电池FET流到电子系统。 复制FET将电池耦合到电流感测电路。 电池FET和复制FET中的一个包括具有单独控制端的多个并联FET段。 逻辑块基于系统状态输入提供多个开关控制信号。 开关电路接收开关控制信号，并且将FET段的分离的控制端子选择性地耦合到第一参考电压端子或第二参考电压端子之一，以独立地使每个FET段导通或关断。 电流感测电路提供指示流过复制FET的电流的电压。

公开(公告)号：WO2013126499A1

公开(公告)日：2013-08-29

申请号：PCT/US2013/027019

申请日：2013-02-21

Applicant: QUALCOMM INCORPORATED

Inventor： CHUN, Christopher ,  DERBYSHIRE, Amy ,  ANDERSON, Jon J. ,  PATRICK, Christopher ,  SUTTON, Todd ,  MIKUTEIT, Eric Ian

IPC: G06F1/32

CPC classification number: G06F11/3058 ,  G06F1/26 ,  G06F1/3212 ,  G06F1/324 ,  Y02D10/126 ,  Y02D10/174

Abstract: An electrical current (EC) manager module may assign a plurality of hardware elements of the PCD to one of two groups. The EC manager module may monitor individual electrical current levels of one of the groups as well as calculate an instantaneous electrical current level for the PCD based on a current charge status for the PCD. The EC manager module may then adjust operation of at least one hardware element to keep operation of the PCD below the calculated instantaneous electrical current level for the PCD. The EC manager module may estimate an electrical current level for one of the groups based on requests issued to hardware elements. The EC manager module may also compare the calculated instantaneous electrical current level to the monitored electrical current level. The calculated instantaneous electrical current level may be compared to minimum current levels listed in a table.

Abstract translation: 电流（EC）管理器模块可以将PCD的多个硬件元件分配给两个组中的一个。 EC管理器模块可以监视组中的一个的各个电流电平，并且基于PCD的当前充电状态来计算PCD的瞬时电流水平。 EC管理器模块然后可以调整至少一个硬件元件的操作，以将PCD的操作保持在PCD的计算出的瞬时电流水平以下。 EC管理器模块可以基于向硬件元件发出的请求来估计组中的一个的电流水平。 EC管理器模块还可以将所计算的瞬时电流水平与所监视的电流水平进行比较。 计算出的瞬时电流水平可以与表中列出的最小电流水平进行比较。

公开(公告)号：EP3071978A2

公开(公告)日：2016-09-28

申请号：EP14809557.3

申请日：2014-11-18

Applicant: Qualcomm Incorporated

Inventor： MIKUTEIT, Eric Ian

IPC: G01R19/00 ,  G01R15/09 ,  H01M10/48 ,  G01R31/36 ,  G01R1/20

CPC classification number: G01R31/3644 ,  G01R1/203 ,  G01R15/09 ,  G01R19/0092 ,  G01R31/3624 ,  H01M10/48 ,  H03K2217/0027

Abstract: A circuit comprises a battery field-effect transistor (FET) coupled between a battery and an electronic system so that current from the battery flows through the battery FET to the electronic system. A replica FET couples the battery to a current sensing circuit. One of the battery FET and the replica FET comprises a plurality of parallel FET segments having separate control terminals. A logic block provides a plurality of switch control signals based on a system state input. A switching circuit receives the switch control signals and selectively couples the separate control terminals of the FET segments to one of a first reference voltage terminal or a second reference voltage terminal to independently turn each FET segment on or off. The current sensing circuit provides a voltage indicative of the current flowing through the replica FET.