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公开(公告)号：US10554058B2
公开(公告)日：2020-02-04
申请号：US16024538
申请日：2018-06-29
Applicant: MediaTek Inc.
Inventor： Chih-Yuan Hsu , Chi-Ming Lee , Shih-Ming Chen
IPC: H02J7/00
Abstract: According to at least one aspect, a device is provided. The device comprises: a connector configured to electrically couple to an external device and comprising a plurality of terminals including a supply terminal; a monitoring circuit coupled to the supply terminal and configured to apply an electrical signal to the supply terminal and measure at least one of a voltage level and a current level on the supply terminal; a controller communicatively coupled to the monitoring circuit and configured to: determine whether an impedance between the supply terminal and at least one other terminal in the plurality of terminals is above a threshold using the at least one of the voltage level and the current level on the supply terminal; and output at least one message responsive to the impedance being below the threshold.
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Patent Agency Ranking
公开(公告)号：US20180331548A1
公开(公告)日：2018-11-15
申请号：US16024538
申请日：2018-06-29
Applicant: MediaTek Inc.
Inventor： Chih-Yuan Hsu , Chi-Ming Lee , Shih-Ming Chen
IPC: H02J7/00
CPC classification number: H02J7/0042 , H02J7/0036 , H02J7/007 , H02J7/008
Abstract: According to at least one aspect, a device is provided. The device comprises: a connector configured to electrically couple to an external device and comprising a plurality of terminals including a supply terminal; a monitoring circuit coupled to the supply terminal and configured to apply an electrical signal to the supply terminal and measure at least one of a voltage level and a current level on the supply terminal; a controller communicatively coupled to the monitoring circuit and configured to: determine whether an impedance between the supply terminal and at least one other terminal in the plurality of terminals is above a threshold using the at least one of the voltage level and the current level on the supply terminal; and output at least one message responsive to the impedance being below the threshold.
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公开(公告)号：US20180262017A1
公开(公告)日：2018-09-13
申请号：US15852026
申请日：2017-12-22
Applicant: MEDIATEK INC.
Inventor： Chih-Yuan Hsu , Chi-Ming Lee , Shih-Ming Chen
CPC classification number: H02J7/007 , G01K13/00 , H01M10/425 , H01M10/443 , H01M10/486 , H01M2200/00 , H02J7/0029 , H02J7/0047 , H02J7/0063
Abstract: The invention provides a method for improving temperature management of a battery pack. The battery pack may comprise a battery cell charged via at least one supply trace of a PCB (printed circuit board), a protection circuit module mounted on the PCB and coupled to the at least one supply trace, and a plurality of temperature sensors respectively reflecting a temperature of the battery cell and a temperature of the PCB. The method may comprise: measuring a cell temperature and a PCB temperature by the temperature sensors; when charging the battery cell by a charging current and a charging voltage, controlling the charging voltage and the charging current according to the cell temperature, and adjusting the charging current further according to the PCB temperature, so as to constrain the temperature of the PCB.
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公开(公告)号：US10658860B2
公开(公告)日：2020-05-19
申请号：US16214150
申请日：2018-12-10
Applicant: MEDIATEK INC.
Inventor： Chih-Yuan Hsu , Yu-Yuan Kuo , Chi-Ming Lee , Shih-Ming Chen
Abstract: An electronic device includes: a connector, arranged for coupling to a power supply external to the electronic device, wherein the power supply is arranged to provide a supply voltage to the electronic device to charge a battery of the electronic device; and a charger, coupled to the connector and selectively operated in a normal mode or a self-test mode, wherein when the charger operates in the normal mode, the charger is arranged for receiving the supply voltage via a power pin of the connector to charge the battery of the electronic device; and when the charger operates in the self-test mode, the charger provides a specific voltage to the power pin of the connector. The charger includes a detector to detect the current or voltage of at least one pin of the connector to generate a detecting result, and the supply voltage is set based on the detecting result.
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公开(公告)号：US10148101B2
公开(公告)日：2018-12-04
申请号：US15480417
申请日：2017-04-06
Applicant: MEDIATEK Inc.
Inventor： Chih-Yuan Hsu , Shih-Ming Chen , Jia-You Chuang
Abstract: A battery charging system for charging a battery of a portable device includes: a power supplier, generating a power supplier output voltage and a power supplier output current; and a charging circuit, dynamically updating an over-voltage protection threshold and/or an over-current protection threshold based on a charging current, a battery cell charging voltage and an equivalent impedance of a charge path. The power supplier output current and/or the over-voltage protection threshold and/or the over-current protection threshold are time-varying during the battery is charged. The power supplier performs over-voltage protection and/or over-current protection based on the over-voltage protection threshold and/or the over-current protection threshold from the charging circuit.
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公开(公告)号：US20180048166A1
公开(公告)日：2018-02-15
申请号：US15480417
申请日：2017-04-06
Applicant: MEDIATEK Inc.
Inventor： Chih-Yuan Hsu , Shih-Ming Chen , Jia-You Chuang
CPC classification number: H02J7/0029 , G01R31/362 , H02J7/007 , H02J7/0072 , H02J2007/0037 , H02J2007/0039
Abstract: A battery charging system for charging a battery of a portable device includes: a power supplier, generating a power supplier output voltage and a power supplier output current; and a charging circuit, dynamically updating an over-voltage protection threshold and/or an over-current protection threshold based on a charging current, a battery cell charging voltage and an equivalent impedance of a charge path. The power supplier output current and/or the over-voltage protection threshold and/or the over-current protection threshold are time-varying during the battery is charged. The power supplier performs over-voltage protection and/or over-current protection based on the over-voltage protection threshold and/or the over-current protection threshold from the charging circuit.
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