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公开(公告)号：US10998741B2
公开(公告)日：2021-05-04
申请号：US16341712
申请日：2016-10-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wenchao Yu , Chong Wen
Abstract: Some embodiments of the present invention provide a charger. According to the charger, a detection signal generation circuit actively sends a detection signal; a feedback circuit detects level signals on a sampling component, and generates a feedback signal according to the level signals; a switch component controls, according to the feedback signal, the charger to output a charging voltage; and when the level signals meet a preset condition (the preset condition is a preset condition that the level signals meet when an abnormal short circuit occurs on a charging interface), the switch component controls the charger to stop outputting the charging voltage.
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公开(公告)号：US10250048B2
公开(公告)日：2019-04-02
申请号：US15532026
申请日：2014-12-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chong Wen
Abstract: Embodiments of present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three detecting items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
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Patent Agency Ranking
公开(公告)号：US11011925B2
公开(公告)日：2021-05-18
申请号：US16304067
申请日：2017-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chao Zhang , Chong Wen
Abstract: A battery charging apparatus and method, a terminal, a power adapter, and a storage medium relate to the electronics field, where the method includes detecting temperature of a charging path in a battery charging apparatus, and when a power adapter supplying charging power for the battery charging apparatus works in a first working mode and a detected largest temperature value is greater than or equal to a preset threshold, instructing the power adapter to switch to a second working mode, decoupling a charging path corresponding to the first working mode, and coupling a charging path corresponding to the second working mode. This reduces impact of local heat accumulation on device performance during charging of a terminal battery, lengthens a device life span, and improves user experience.
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公开(公告)号：US11074212B2
公开(公告)日：2021-07-27
申请号：US16650340
申请日：2017-09-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chong Wen
Abstract: A method for controlling a Type C USB interface includes disconnecting a shielding housing of a Type C USB interface (J1) from the ground of an electronic device, obtaining a level (V12) of the shielding housing, determining, based on the obtained level (V12), whether an external device is plugged into or unplugged from the Type C USB interface (J1); outputting a signal to a CC pin of the Type C USB interface (J1) when it is determined that the external device is plugged into the Type C USB interface (J1) of the electronic device; and stopping outputting the signal to the CC pin of the Type C USB interface (J1) when it is determined that the an external device is unplugged from the Type C USB interface (J1) of the electronic device or that no the external device is connected to the Type C USB interface (J1).
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公开(公告)号：US10778018B2
公开(公告)日：2020-09-15
申请号：US16265609
申请日：2019-02-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chong Wen
Abstract: Embodiments of the present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
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公开(公告)号：US20200052510A1
公开(公告)日：2020-02-13
申请号：US16341712
申请日：2016-10-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wenchao Yu , Chong Wen
Abstract: Some embodiments of the present invention provide a charger. According to the charger, a detection signal generation circuit actively sends a detection signal; a feedback circuit detects level signals on a sampling component, and generates a feedback signal according to the level signals; a switch component controls, according to the feedback signal, the charger to output a charging voltage; and when the level signals meet a preset condition (the preset condition is a preset condition that the level signals meet when an abnormal short circuit occurs on a charging interface), the switch component controls the charger to stop outputting the charging voltage.
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公开(公告)号：US20170271897A1
公开(公告)日：2017-09-21
申请号：US15532026
申请日：2014-12-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chong Wen
CPC classification number: H02J7/0031 , G08B21/18 , H02H5/04 , H02H7/18 , H02J7/0029 , H02J7/0047 , H02J7/0052 , H02J7/04 , H02J2007/0039 , H02J2007/0062
Abstract: Embodiments of the present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
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