公开(公告)号：US20170222464A1

公开(公告)日：2017-08-03

申请号：US15273517

申请日：2016-09-22

Applicant: QUALCOMM Incorporated

Inventor： Stuart PULLEN ,  Steve HAWLEY ,  Thomas O'BRIEN

IPC: H02J7/00

CPC classification number: H02J7/0072 ,  G06F1/26 ,  G06F1/263 ,  G06F1/266 ,  H02J1/10 ,  H02J7/0052 ,  H02J7/0063 ,  H02J7/0068 ,  H02J7/025 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02J2007/0067 ,  H02M3/1584

Abstract: A multi-phase (e.g., dual-phase) concurrent configuration of a power management component supports higher current levels to peripheral devices while maintaining acceptable thermal limits. A dual-phase integrated circuit (IC) having a first input/output (I/O) port coupled to a battery and a second I/O port coupled to an adapter and a peripheral device implements the configuration. The dual phase IC includes a dual-phase voltage regulator that selectively provide power (i) from the first I/O port to the second I/O port to provide power to the peripheral device or (ii) from the second I/O port to the first I/O port to provide power to the battery. A controller activates a boost phase to power the second I/O port in response to detecting a demand current of the peripheral device exceeds a maximum current available from the adapter.

公开(公告)号：US20170222463A1

公开(公告)日：2017-08-03

申请号：US15270847

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Stuart PULLEN ,  Steve HAWLEY ,  Thomas O'BRIEN

IPC: H02J7/00

CPC classification number: H02J7/0072 ,  H02J7/0052 ,  H02J7/04 ,  H02J7/045 ,  H02J2007/0059 ,  H02J2007/0062 ,  H02M1/32 ,  H02M3/1588 ,  H02M2001/0045 ,  H02M2001/0048 ,  H03K7/08 ,  Y02B40/90 ,  Y02B70/1466 ,  Y02B70/1491

Abstract: A battery charging implementation improves the charging time (e.g., deliver a maximum or improved charge while minimizing or reducing power loss on the mobile device) by regulating a charging device duty cycle (e.g., buck duty cycle) of a switching regulator/converter (e.g., buck regulator) to a narrow range. An input voltage of a battery charging circuit is dynamically adjusted to maintain a duty cycle within a predetermined range. A battery is then charged in accordance with an output voltage of the battery charging circuit resulting from the adjusted duty cycle.