公开(公告)号：US10185342B2

公开(公告)日：2019-01-22

申请号：US15703825

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Aaron Melgar ,  Christian Sporck ,  Chunping Song ,  David Wong ,  Rashed Hoque ,  Neal Horovitz ,  Hector Ivan Oporta ,  Daryl Bergstrom

IPC: H02M3/158 ,  G05F1/575 ,  H02M1/42 ,  H02M3/156 ,  H02M3/335 ,  G05F1/563 ,  H02M1/00

Abstract: A configurable charge converter may include an adaptive low-dropout regulator. The adaptive low-dropout regulator may include a headroom detection circuit and a power supply controller. The headroom detection circuit may monitor a voltage drop across a field effect transistor (FET) and cause a programmable power supply to increase or decrease an output voltage accordingly. In some aspects, the configurable charge converter may include an adaptive low-dropout regulator and a buck/boost converter. The output power of the configurable charge controller may be provided by the adaptive low-dropout regulator, the buck/boost converter, or by both the adaptive low-dropout regulator and the buck/boost converter operating in combination.

公开(公告)号：US20170085098A1

公开(公告)日：2017-03-23

申请号：US14856947

申请日：2015-09-17

Applicant: QUALCOMM Incorporated

Inventor： Christian Sporck ,  VaraPrasad Arikatla ,  Shadi Hawawini ,  Steve Hawley ,  Thomas O'Brien ,  Seema Kumar ,  Aaron Melgar

IPC: H02J7/00

CPC classification number: H02J7/007 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0055 ,  H02J7/008 ,  H02J7/0091 ,  H02J7/0093 ,  H02J7/022 ,  H02J7/047 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M3/156

Abstract: The present disclosure includes a method of charging a battery. In one embodiment, the method comprises receiving, in a battery charging circuit on an electronic device, an input voltage having a first voltage value from an external power source. The battery charger is configured to produce a charge current having a first current value into the battery. The input current limit and/or duty cycle of the charger is monitored. Control signals may be generated to increase the first voltage value of the input voltage if either (i) the input current limit is activated or (ii) the duty cycle reaches a maximum duty cycle. The charger also receives signals indicating a temperature inside the electronic device and generates control signals to decrease the value of the input voltage when the temperature increases above a threshold temperature.

公开(公告)号：US10432008B2

公开(公告)日：2019-10-01

申请号：US15688684

申请日：2017-08-28

Applicant: QUALCOMM Incorporated

Inventor： Christian Sporck ,  VaraPrasad Arikatla ,  Shadi Hawawini ,  Steve Hawley ,  Thomas O'Brien ,  Seema Kumar ,  Aaron Melgar

IPC: H02J7/00 ,  H02J7/02 ,  H02M3/156 ,  H02J7/04

Abstract: The present disclosure includes a method of charging a battery. In one embodiment, the method comprises receiving, in a battery charging circuit on an electronic device, an input voltage having a first voltage value from an external power source. The battery charger is configured to produce a charge current having a first current value into the battery. The input current limit and/or duty cycle of the charger is monitored. Control signals may be generated to increase the first voltage value of the input voltage if either (i) the input current limit is activated or (ii) the duty cycle reaches a maximum duty cycle. The charger also receives signals indicating a temperature inside the electronic device and generates control signals to decrease the value of the input voltage when the temperature increases above a threshold temperature.

公开(公告)号：US20180129234A1

公开(公告)日：2018-05-10

申请号：US15703825

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Aaron Melgar ,  Christian Sporck ,  Chunping Song ,  David Wong ,  Rashed Hoque ,  Neal Horovitz ,  Hector Ivan Oporta ,  Daryl Bergstrom

IPC: G05F1/575 ,  H02M3/156 ,  H02M3/158 ,  H02M1/42 ,  H02M3/335

CPC classification number: G05F1/575 ,  G05F1/563 ,  H02M1/4225 ,  H02M3/156 ,  H02M3/158 ,  H02M3/1582 ,  H02M3/1588 ,  H02M3/33507 ,  H02M2001/0045 ,  H02M2001/007

Abstract: A configurable charge converter may include an adaptive low-dropout regulator. The adaptive low-dropout regulator may include a headroom detection circuit and a power supply controller. The headroom detection circuit may monitor a voltage drop across a field effect transistor (FET) and cause a programmable power supply to increase or decrease an output voltage accordingly. In some aspects, the configurable charge converter may include an adaptive low-dropout regulator and a buck/boost converter. The output power of the configurable charge controller may be provided by the adaptive low-dropout regulator, the buck/boost converter, or by both the adaptive low-dropout regulator and the buck/boost converter operating in combination.

公开(公告)号：US20180013295A1

公开(公告)日：2018-01-11

申请号：US15688684

申请日：2017-08-28

Applicant: QUALCOMM Incorporated

Inventor： Christian Sporck ,  VaraPrasad Arikatla ,  Shadi Hawawini ,  Steve Hawley ,  Thomas O'Brien ,  Seema Kumar ,  Aaron Melgar

IPC: H02J7/00 ,  H02J7/02 ,  H02M3/156

CPC classification number: H02J7/007 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0055 ,  H02J7/008 ,  H02J7/0091 ,  H02J7/0093 ,  H02J7/022 ,  H02J7/047 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M3/156

Abstract: The present disclosure includes a method of charging a battery. In one embodiment, the method comprises receiving, in a battery charging circuit on an electronic device, an input voltage having a first voltage value from an external power source. The battery charger is configured to produce a charge current having a first current value into the battery. The input current limit and/or duty cycle of the charger is monitored. Control signals may be generated to increase the first voltage value of the input voltage if either (i) the input current limit is activated or (ii) the duty cycle reaches a maximum duty cycle. The charger also receives signals indicating a temperature inside the electronic device and generates control signals to decrease the value of the input voltage when the temperature increases above a threshold temperature.

公开(公告)号：US09748788B2

公开(公告)日：2017-08-29

申请号：US14856947

申请日：2015-09-17

Applicant: QUALCOMM Incorporated

Inventor： Christian Sporck ,  VaraPrasad Arikatla ,  Shadi Hawawini ,  Steve Hawley ,  Thomas O'Brien ,  Seema Kumar ,  Aaron Melgar

IPC: H02J7/00

CPC classification number: H02J7/007 ,  H02J7/00 ,  H02J7/0052 ,  H02J7/0055 ,  H02J7/008 ,  H02J7/0091 ,  H02J7/0093 ,  H02J7/022 ,  H02J7/047 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M3/156

Abstract: The present disclosure includes a method of charging a battery. In one embodiment, the method comprises receiving, in a battery charging circuit on an electronic device, an input voltage having a first voltage value from an external power source. The battery charger is configured to produce a charge current having a first current value into the battery. The input current limit and/or duty cycle of the charger is monitored. Control signals may be generated to increase the first voltage value of the input voltage if either (i) the input current limit is activated or (ii) the duty cycle reaches a maximum duty cycle. The charger also receives signals indicating a temperature inside the electronic device and generates control signals to decrease the value of the input voltage when the temperature increases above a threshold temperature.