公开(公告)号：EP3582066A1

公开(公告)日：2019-12-18

申请号：EP19183820.0

申请日：2012-09-28

Applicant: Apple Inc.

Inventor： PATEL, Parin

IPC: G06F1/32 ,  G06F1/26 ,  G06F1/30

Abstract: A power gate is coupled to a power supply circuit to selectively provide power to a processing core. A switch has a local state and a remote state to alternately route (i) a local sense point on a supply side of the power gate and (ii) and a remote sense point on a load side of the power gate, to a load voltage feedback input of the power supply circuit. Timing logic and driver circuitry control the power gate and the switch in response to a processing core enable signal. Other embodiments are also described.

公开(公告)号：EP3192065B1

公开(公告)日：2019-01-23

申请号：EP15781808.9

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： PATEL, Parin ,  HRINYA, Stephen J.

IPC: G09G3/34 ,  H02M1/36 ,  H02M3/158 ,  H04M1/22 ,  H05B33/08 ,  H02M1/00 ,  H02M3/156

公开(公告)号：EP2992583B1

公开(公告)日：2019-01-16

申请号：EP14723256.5

申请日：2014-04-09

Applicant: Apple Inc.

Inventor： PATEL, Parin ,  GREENING, Thomas, C. ,  TAPPAN, Carl, D.

IPC: H02J7/00 ,  G01R31/36

公开(公告)号：EP2776903B1

公开(公告)日：2017-04-19

申请号：EP13712960.7

申请日：2013-03-06

Applicant: Apple Inc.

Inventor： PATEL, Parin ,  MULLINS, Scott P.

IPC: G06F1/32

CPC classification number: G01K13/00 ,  A61K31/56 ,  G01N33/5041 ,  G01N2500/00 ,  G06F1/206 ,  G06F1/32 ,  G06F1/3206 ,  H01M10/425 ,  H01M10/443 ,  H01M10/486 ,  H01M2010/4271 ,  H01M2010/4278 ,  Y02D10/16

Abstract: A power-management unit is described. This power-management unit allows a common signal line to communicate data between an integrated circuit (which may be external to the power-management unit) and a battery-monitoring mechanism in a battery pack, and to convey a signal that represents a temperature state of the battery pack to a temperature-monitoring circuit or mechanism that monitors the temperature state of the battery pack. In particular, the power-management unit may include a single-wire interface or a multiplexer that, at a given time, selectively couples the signal line from the battery pack either to the integrated circuit or the temperature-monitoring circuit based on a control signal provided by the integrated circuit (for example, via an I2C bus or interface). In this way, the power-management unit may reduce the number of signal lines needed to communicate with the battery-monitoring mechanism and to convey the signal.