公开(公告)号：US09797959B2

公开(公告)日：2017-10-24

申请号：US14084398

申请日：2013-11-19

Applicant: QUALCOMM Incorporated

Inventor： Eric I Mikuteit

IPC: G01N27/416 ,  G01R31/36 ,  G01R15/09 ,  G01R19/00 ,  G01R1/20 ,  H01M10/48

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.

公开(公告)号：US09651624B2

公开(公告)日：2017-05-16

申请号：US13800366

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Krishnakumar Gopalakrishnan ,  Eric I Mikuteit

IPC: G01R31/36

CPC classification number: G01R31/3624 ,  G01R31/362

Abstract: The present disclosure includes systems and methods for state of charge estimation. In one embodiment, the present disclosure includes a method comprising receiving a voltage corresponding to a state of charge of a battery, converting the voltage to an estimated state of charge using different algorithms across different ranges. In another embodiment, an offset state of charge is applied to a first state of charge to produce an estimated state of charge.

公开(公告)号：US20140172333A1

公开(公告)日：2014-06-19

申请号：US13800366

申请日：2013-03-13

Applicant: QUALCOMM INCORPORATED

Inventor： Krishnakumar Gopalakrishnan ,  Eric I Mikuteit

IPC: G01R31/36

CPC classification number: G01R31/3624 ,  G01R31/362

Abstract: The present disclosure includes systems and methods for state of charge estimation. In one embodiment, the present disclosure includes a method comprising receiving a voltage corresponding to a state of charge of a battery, converting the voltage to an estimated state of charge using different algorithms across different ranges. In another embodiment, an offset state of charge is applied to a first state of charge to produce an estimated state of charge.

Abstract translation: 本公开包括用于充电状态估计的系统和方法。 在一个实施例中，本公开包括一种方法，包括接收对应于电池的充电状态的电压，使用不同范围内的不同算法将电压转换成估计的电荷状态。 在另一个实施例中，电荷的偏移状态被施加到第一充电状态以产生估计的充电状态。

公开(公告)号：US09190862B2

公开(公告)日：2015-11-17

申请号：US13785677

申请日：2013-03-05

Applicant: QUALCOMM Incorporated

Inventor： Cheong Kun ,  Eric B Zeisel ,  David Keitel ,  Eric I Mikuteit ,  Abhijeet V Dharmapurikar ,  Todd R Sutton

IPC: H02J7/00 ,  H02J7/04 ,  H02J7/02 ,  H01M10/44

CPC classification number: H02J7/007 ,  H01M10/44 ,  H02J7/0068 ,  H02J7/022 ,  H02J7/044

Abstract: Exemplary embodiments are directed to systems, devices, methods, and computer-readable media for calibrating a charging current. A device may include a charger for conveying an output voltage to a chargeable device. The device may also include a monitoring system including an analog-to-digital converter for measuring a current received by the chargeable device. Further, the device may include a control device configured to receive a charging current value from the monitoring system and convey a signal to the charger in response to a comparison of the charging current value to a target current value.

Abstract translation: 示例性实施例涉及用于校准充电电流的系统，设备，方法和计算机可读介质。 装置可以包括用于将输出电压传送到可计费装置的充电器。 该装置还可以包括监视系统，该监视系统包括用于测量可计费装置所接收的电流的模数转换器。 此外，该装置可以包括配置成从监视系统接收充电电流值并响应于充电电流值与目标电流值的比较而将信号传送到充电器的控制装置。

公开(公告)号：US20150046105A1

公开(公告)日：2015-02-12

申请号：US14253415

申请日：2014-04-15

Applicant: QUALCOMM Incorporated

Inventor： Ranjit Kumar Guntreddi ,  Krishnakumar Gopalakrishnan ,  Justin T Blackman ,  Eric I Mikuteit ,  Todd R Sutton

IPC: G01R31/36

CPC classification number: G01R31/3835 ,  G01R31/367

Abstract: In one embodiment, a circuit comprises a sensor providing a digital signal responsive to a battery voltage on a battery terminal of a battery. The sensor can be an analog-to-digital convertor. A processor is coupled to the sensor and is configured to calculate a state of charge of the battery based on the digital signal at a first time, the digital signal at a second time, and a stored battery profile of open circuit voltage as a function of state of charge at the second time.

Abstract translation: 在一个实施例中，电路包括响应于电池的电池端子上的电池电压而提供数字信号的传感器。 传感器可以是模数转换器。 处理器耦合到传感器，并且被配置为基于第一时间的数字信号，第二时间的数字信号和作为开关电路的功能的存储的开路电压的电池轮廓来计算电池的充电状态 第二次充电状态。