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Patent Agency Ranking
公开(公告)号：US11658473B2
公开(公告)日：2023-05-23
申请号：US17381839
申请日：2021-07-21
Applicant: Apple Inc.
Inventor： Vishal Gupta , Timothy M. Johnson , Sivasankari Krishnanji
IPC: H02H3/08 , H02H1/00 , H05K5/00 , H05K1/14 , H05K1/18 , H05K1/02 , G01R19/165 , G05B19/042 , G08B21/18 , H02H3/10 , G06F1/16 , G06F1/18 , H02H3/04 , H02H5/04 , H02H7/20
CPC classification number: H02H3/085 , G01R19/16542 , G05B19/0428 , G08B21/182 , H02H1/0007 , H02H3/10 , H05K1/028 , H05K1/14 , H05K1/181 , H05K5/0086 , G05B2219/21156 , G06F1/1613 , G06F1/189 , H02H1/0092 , H02H3/04 , H02H5/041 , H02H7/20 , H02J2207/20 , H05K2201/10151
Abstract: A personal electronic device can include a main printed circuit board having disposed thereon a processing unit, one or more auxiliary circuits coupled to the main printed circuit board by one or more corresponding flexible printed circuits and one or more temperature sensors disposed on one of the flexible printed circuits. A processing unit of the portable electronic device can be configured to monitor the one or more temperature sensors, provide a warning in response to a monitored temperature exceeding a first threshold, and to cause a shutdown of at least a portion of the personal electronic device in response to the monitored temperature exceeding a second threshold. The temperature sensors can be negative temperature coefficient resistors.
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公开(公告)号：US10855179B2
公开(公告)日：2020-12-01
申请号：US15471042
申请日：2017-03-28
Applicant: Apple Inc.
Inventor： Khaleel Shaik , Di Zhao , Sivasankari Krishnanji
Abstract: A power converter may be adapted to provide an output voltage from one of two input voltages. The power converter may include two or more buck converters that share a plurality of power converter components and each converts an individual input voltage to the output voltage. The power converter may include any of a variety of charge equalizing components that may be coupled between input terminals and optional input capacitors, which are coupled between the input terminals and ground. The charge equalizing component(s) provide(s) a fast conduction path for the equalization of input voltages and charge/voltage of the optional input capacitors. The charge equalizing component(s) can mitigate large currents created by differential voltages between the input terminals, which currents would otherwise flow through and potentially damage or destroy the power converter's switching devices.
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公开(公告)号：US20180198368A1
公开(公告)日：2018-07-12
申请号：US15471042
申请日：2017-03-28
Applicant: Apple Inc.
Inventor： Khaleel Shaik , Di Zhao , Sivasankari Krishnanji
CPC classification number: H02M3/158 , H02J7/0052 , H02J7/0055 , H02J7/025 , H02J7/35 , H02J2007/0059 , H02J2007/0062
Abstract: A power converter may be adapted to provide an output voltage from one of two input voltages. The power converter may include two or more buck converters that share a plurality of power converter components and each converts an individual input voltage to the output voltage. The power converter may include any of a variety of charge equalizing components that may be coupled between input terminals and optional input capacitors, which are coupled between the input terminals and ground. The charge equalizing component(s) provide(s) a fast conduction path for the equalization of input voltages and charge/voltage of the optional input capacitors. The charge equalizing component(s) can mitigate large currents created by differential voltages between the input terminals, which currents would otherwise flow through and potentially damage or destroy the power converter's switching devices.
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公开(公告)号：US20210359505A1
公开(公告)日：2021-11-18
申请号：US17381839
申请日：2021-07-21
Applicant: Apple Inc.
Inventor： Vishal Gupta , Timothy M. Johnson , Sivasankari Krishnanji
IPC: H02H3/08 , H02H1/00 , H05K5/00 , H05K1/14 , H05K1/18 , H05K1/02 , G01R19/165 , G05B19/042 , G08B21/18 , H02H3/10
Abstract: A personal electronic device can include a main printed circuit board having disposed thereon a processing unit, one or more auxiliary circuits coupled to the main printed circuit board by one or more corresponding flexible printed circuits and one or more temperature sensors disposed on one of the flexible printed circuits. A processing unit of the portable electronic device can be configured to monitor the one or more temperature sensors, provide a warning in response to a monitored temperature exceeding a first threshold, and to cause a shutdown of at least a portion of the personal electronic device in response to the monitored temperature exceeding a second threshold. The temperature sensors can be negative temperature coefficient resistors.
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公开(公告)号：US11101634B2
公开(公告)日：2021-08-24
申请号：US16201454
申请日：2018-11-27
Applicant: Apple Inc.
Inventor： Vishal Gupta , Timothy M. Johnson , Sivasankari Krishnanji
IPC: H02H3/08 , H02H1/00 , H05K5/00 , H05K1/14 , H05K1/18 , H05K1/02 , G01R19/165 , G05B19/042 , G08B21/18 , H02H3/10 , G06F1/16 , G06F1/18 , H02H3/04 , H02H5/04 , H02H7/20
Abstract: A personal electronic device can include a main printed circuit board having disposed thereon a processing unit, one or more auxiliary circuits coupled to the main printed circuit board by one or more corresponding flexible printed circuits and one or more temperature sensors disposed on one of the flexible printed circuits. A processing unit of the portable electronic device can be configured to monitor the one or more temperature sensors, provide a warning in response to a monitored temperature exceeding a first threshold, and to cause a shutdown of at least a portion of the personal electronic device in response to the monitored temperature exceeding a second threshold. The temperature sensors can be negative temperature coefficient resistors.
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